Microsoft Windows SDK Changelog

What's new in Microsoft Windows SDK Build 26100 Dev Insider Preview / Build 26100 Canary Insider Pre

Apr 15, 2024

Changes and Improvements:
[General]:
[REMINDER] The build watermark at the lower right-hand corner of the desktop is not present in this build and will return in future Insider Preview builds. This is part of our normal process preparing Windows 11, version 24H2 for releasing to customers later this year – but does not mean we’re done. Windows 11, version 24H2, will be this year’s annual feature update. As mentioned here, Windows 11 will have an annual feature update cadence that releases in the second half of the calendar year.
Fixes for known issues:
[General]:
Made another fix to address the issue causing shutdown and hibernate to not work in the latest builds.
Fixed an issue resulting in some Insiders seeing error 0x80240067 when trying to download app updates from Microsoft Store or Windows updates in Settings in the latest builds.
[Copilot in Windows*]:
With the updated Copilot in Windows experience that introduces the ability for Copilot to act like a normal application window, we have fixed the issue that prevented the ability to bring focus to the “…” or refresh buttons within Copilot when using a keyboard (ex: by using tab to cycle through buttons).
[Windowing]:
Fixed a DWM crash impacting some Insiders in the latest flights (this could result in you seeing your screen flash black).
Known issues:
[General]:
[IMPORTANT NOTE] We are investigating reports that some Windows Insiders in the Canary and Dev Channels are stuck on Build 26040 or Build 23620. The investigation is ongoing, however if you are impacted by this and really want to get onto the latest build in the Canary or Dev Channel today – you can download the latest ISO here and do a clean install and opt your device back into flighting in the Canary or Dev Channels.
[Copilot in Windows*]:
[ADDED 4/12] We are aware of reports by Insiders in the Canary and Dev Channels that Copilot is auto-launching unexpectedly after restarting their PCs. We hope to have a fix for this issue soon and is unrelated to the auto-launching experience we tried out with Insiders in the Canary and Dev Channels in early February which we stopped rolling out in March.
Voice access does not work reliably with the updated Copilot in Windows experience that introduces the ability for Copilot to act like a normal application.
Using Windows Ink to write in Copilot will not work with the updated Copilot in Windows experience that introduces the ability for Copilot to act like a normal application window.
When Copilot in Windows is docked and resized to a large width, Copilot does not always fill the width of the panel. Resizing Copilot usually fixes this issue.

New in Microsoft Windows SDK Build 23612 Dev Insider Preview (Jan 4, 2024)

Richer weather experience on the lock screen:
We are introducing a richer weather experience to your lock screen. This includes dynamic, interactive weather updates. So, as you hover over the weather experience on your lock screen, you will see more information. When you tap or click on the weather card and sign in, Microsoft Edge opens with the full forecast in MSN Weather. If you already use Weather under Settings > Personalization > Lock screen > Lock screen status, there is nothing for you to do. Also, this new experience will be on by default. Should you not want to see this experience, you can change your lock screen status to “None.” This rich weather experience is available when you lock your screen no matter which personalization option you select (Windows spotlight, Picture, or Slideshow).
Extended languages, multi-display support, and custom commands for voice access:
Extended language support: We have extended voice access to support other languages such as French (France), French (Canada), German, Spanish (Spain) and Spanish (Mexico).
When voice access is turned on for the first time, you will be prompted to download a speech model to enable on-device recognition of voice data. In case voice access does not find a speech model matching your display language, you can still choose to proceed ahead to use voice access in English (United States).
Changes and Improvements:
[Settings]:
Optional features previously listed under Settings > Apps has moved to its own page under Settings > System.
Fixes:
[Start menu]:
Fixed an issue which was causing the text input indicator to appear floating when you opened Start menu.
[File Explorer]:
Made a change to help fix an issue which could cause the spacing between your desktop icons to become extremely wide.
Fixed an issue which could cause explorer.exe to crash when opening the context menu in file explorer if multiple files were selected.
[Widgets]:
We fixed the issue causing a loading delay when the Microsoft Start feed is reenabled.
We fixed the issue causing the Widgets Board to not automatically close and reopen when enabling or disabling feeds.

New in Microsoft Windows SDK Build 26020 Canary Insider Preview (Jan 4, 2024)

Extended languages, multi-display support, and custom commands for voice access:
Extended language support: We have extended voice access to support other languages such as French (France), French (Canada), German, Spanish (Spain) and Spanish (Mexico).
When voice access is turned on for the first time, you will be prompted to download a speech model to enable on-device recognition of voice data. In case voice access does not find a speech model matching your display language, you can still choose to proceed ahead to use voice access in English (United States).
You can always switch to a different language by navigating to Settings > Language on the voice access bar.
Multi-display support: You can now use all voice access features on multiple displays, including number and grid overlays which were previously unavailable on any display other than the primary one.
The grid overlay feature has been further developed to allow you to not only interact with the screen you are currently using, but also quickly switch to another display. You can also use the drag and drop feature to move files, apps, and documents from one display to another.
You can also use the accelerated command “mouse grid ..” to quickly move your mouse to a specific point on a specific display. In this case we used “mousegrid A 114” as shown in the above screenshot.
Voice shortcuts: We are introducing voice shortcuts or custom commands to enable you to create your very own command. This is currently available if you use voice access in English.
Creating commands that map to single action, such as opening a URL, or a series of actions performed in sequence, is easy. To get started, say “what can I say” and click on the “Voice shortcuts” tab on the left panel, or use the command “show voice shortcuts” to directly launch the voice shortcuts page. Then, click on the Create Command button to begin the process.
Create a command by using either voice or any other input modality. Give it a name, select one or multiple actions, fill in the necessary information and then click “Create”. Your command is now ready to be used.
You can view all the voice shortcuts you have created either from the command help page or by using the command “show voice shortcuts”.
FEEDBACK: Please file feedback in Feedback Hub (WIN + F) under Accessibility > Voice Access.
Natural Voices Previews in Narrator:
We are introducing previews for natural voices of 10 new locales launched in September 2023. As a reminder, those natural voices include Chinese, Spanish (Spain), Spanish (Mexico), Japanese, English (UK), French, Portuguese, English (India),German and Korean.
These previews will allow the users to listen to the natural voices before downloading the voice model. Natural Narrator voices use modern, on-device text to speech and once downloaded are supported without an internet connection. Please note to listen to the previews, an internet connection is required.
Changes and Improvements:
[General]:
Starting with this build, the WordPad and People apps will no longer be installed after doing a clean install of the OS. In a future flight, WordPad will be removed on upgrade. WordPad will not be reinstallable. WordPad is a deprecated Windows feature. For more information on the future of the People app, click here.
Steps Recorder will not receive further updates and is planned for removal in a future Windows release. Starting in this build, Steps Recorder (PSR.exe) will display a new banner notification to guide users towards alternative options. We encourage our users to explore other options in Windows 11 such as Snipping tool, Xbox Game bar or Microsoft Clipchamp. For more, see this article.
[Taskbar & System Tray]:
For PCs that are plugged in and do not have batteries (such as desktop PCs), when you turn on energy saver, we are trying out a new energy saver icon that is shown in the system tray to indicate energy saver is on. For PCs with batteries, there is no change to the experience, and you will continue to see the leaf icon overlayed on top of the battery icon in the system tray. As a reminder, battery saver is now energy saver with extended capability as of Build 26002.
[Task Manager]:
[ADDED] We improved process grouping in the processes page for Task Manager.
[Printing]:
We have added the ability to pause and resume print jobs in print queue for printers under Settings > Bluetooth & devices > Printers & scanners. This allows you to pause printing when maintenance is required for your printer such as replacing a printer cartridge. Jobs submitted are held by the spooler until the print queue is ‘un-paused’ by clicking resume in Settings. The ability to rename your printer directly here in these settings is coming in a later flight.
[Windows Share]:
The Windows share window will now only show apps under “Share using” that are tied to the account you are signed into Windows with – either Microsoft account (MSA) or Microsoft Entra ID (previously Azure Active Directory). If you are signed in with an MSA, you will see Microsoft Teams (free) instead of Microsoft Teams (work or school) and not both for example.
The Windows share window now supports sharing with WhatsApp under the “Share using” section. If you don’t have WhatsApp installed, you can choose to install it from Windows share window directly. Over time, we plan to try this experience out with other apps as well.
[Nearby Sharing]:
We are introducing the ability to quickly give your device a more friendly name to identify sharing to and from with nearby share under Settings > System > Nearby sharing.
Give your device a more friendly name to identify sharing to and from with nearby share.
Give your device a more friendly name to identify sharing to and from with nearby share.
Fixes for known issues
Fixed an issue causing Settings to crash when navigating to Power & Battery in the previous build.
Fixed an underlying issue causing the details pane in File Explorer to unexpectedly take keyboard focus sometimes.
Copilot will no longer rearrange or push your desktop icons when launched.
Fixed an issue where uncombined taskbar icons were cutting off the title instead of adjusting with the title length.
Fixed an issue causing Steps Recorder to not launch in the last couple builds.
We fixed the issue causing a loading delay when the Microsoft Start feed is reenabled in Widgets.
We fixed the issue causing the Widgets Board to not automatically close and reopen when enabling or disabling feeds.

New in Microsoft Windows SDK Build 25997 Canary Insider Preview (Nov 28, 2023)

New in Microsoft Windows SDK Build 23590 Dev Insider Preview (Nov 28, 2023)

Natural Voices Previews in Narrator:
We are introducing previews for natural voices of 10 new locales launched in September 2023. As a reminder, those natural voices include Chinese, Spanish (Spain), Spanish (Mexico), Japanese, English (UK), French, Portuguese, English (India),German and Korean.
These previews will allow the users to listen to the natural voices before downloading the voice model. Natural Narrator voices use modern, on-device text to speech and once downloaded are supported without an internet connection. Please note to listen to the previews, an internet connection is required.
Enhanced image consumption experience in Narrator
We are improving the image consumption experience with Narrator. There are two major changes:
We have introduced a new keyboard command for navigating between the images/graphics on a screen/page. Now, you can use the keys “G” or “Shift + G” to navigate forward or backwards between images in Scan mode (Narrator key + spacebar).
Recognition of text in images, including handwriting, is improved along with improvements to overall image descriptions. You can try the enhanced experience by navigating to the image and pressing Narrator key + CTRL + D key combination when the focus is on an image. This feature requires an active internet connection, and the setting to get Image Descriptions must be enabled in Narrator Settings.
Changes and Improvements:
[General]:
Steps Recorder will not receive further updates and is planned for removal in a future Windows release. Starting in this build, Steps Recorder (PSR.exe) will display a new banner notification to guide users towards alternative options. We encourage our users to explore other options in Windows 11 such as Snipping tool, Xbox Game bar or Microsoft Clipchamp. For more, see this article.
[Windows Share]:
The Windows share window will now only show apps under “Share using” that are tied to the account you are signed into Windows with – either Microsoft account (MSA) or Microsoft Entra ID (previously Azure Active Directory). If you are signed in with an MSA, you will see Microsoft Teams (free) instead of Microsoft Teams (work or school) and not both for example.
If you’re signed in with a Microsoft Entra ID, your Microsoft Teams (work or school) contacts will appear in the Windows share window to quickly share to.
[Nearby Sharing]:
If you turn on nearby sharing via quick settings or directly in Settings and you have Wi-Fi and Bluetooth off, it will turn Wi-Fi and Bluetooth on so nearby sharing will work as expected. If you turn off Wi-Fi or Bluetooth, it will also turn off nearby sharing
[Narrator]:
In Microsoft Word, Narrator will now announce the presence of a draft comment, a resolved comment, a bookmark, or the availability of accessibility suggestions when reading text in the document.
Fixes:
[File Explorer]:
Fixed an issue causing File Explorer to crash on launch for some Insiders in the last few builds if you were using a non-default regional sorting option.
Fixed an issue which was causing opening the context menu on the desktop to crash explorer.exe in the last couple flights for some Insiders.
Fixed an issue which was causing explorer.exe to crash sometimes when entering paths into the address bar.
[Narrator]:
Fixed an issue where Narrator was not correctly announcing the selected item in combo boxes when users try to change the combo box value using key combination Control + up or down arrow.
Fixed an issue where Narrator was announcing old dialog names even after users navigate to new dialog on few web pages.
Fixed an issue where Narrator was not reading Role of a control in tables on the web while using table navigation commands CTRL + ALT + Arrow keys.
Addressed an issue where Narrator was not announcing the selected state of menu items in few applications such as device manager.
Fixed an issue where Narrator was announcing both the unselected value and the newly selected value in elements such as date fields or any elements that are formatted as tables.
[Magnifier]:
Fixed an issue in Magnifier settings page where the text below “voice speed” slider was not following the color contrast guidelines.
[Settings]:
Fixed an issue where the Experimental Features section of Narrator Settings didn’t have text.
[Windows Share]:
Fixed an issue which was causing the share window to crash in the last couple builds.
NOTE: Some fixes noted here in Insider Preview builds from the Dev Channel may make their way into the servicing updates for the released version of Windows 11.

New in Microsoft Windows SDK Build 25987 Canary Insider Preview (Nov 3, 2023)

New in Microsoft Windows SDK Build 23580 Dev Insider Preview (Nov 3, 2023)

New in Microsoft Windows SDK Build 23506 Dev Insider Preview (Jul 21, 2023)

Passwordless experience with Windows Hello for Business:
With Windows Hello for Business (WHFB), Windows provides organizations with a strong, phish-resistant credential, helping customers move to a passwordless future. Enterprise customers can now set the EnablePasswordlessExperience policy that promotes a user experience on AAD joined machines for core authentication scenarios without requiring a password. This new experience hides passwords from certain Windows authentication scenarios and leverages passwordless recovery mechanisms, such as WHFB PIN reset, if necessary.
Once the policy is set, it removes passwords from the user experience, both for device logon as well as in-session auth scenarios like password managers in a web browser, “Run as” admin or as a different user scenarios, and User Account Control (UAC). Users will navigate through their core authentication scenarios using WHFB in place of passwords. If the user fails to sign in, recovery mechanisms such as PIN reset or web sign-in can be used to help the user recover their credentials without IT helpdesk engagement.
FEEDBACK: Please file feedback in Feedback Hub (WIN + F) under Security and Privacy > Windows Hello PIN.
Unsafe password copy and paste warnings:
Starting in Windows 11, version 22H2, Enhanced Phishing Protection in Microsoft Defender SmartScreen helps protect Microsoft school or work passwords against phishing and unsafe usage on sites and apps. We are trying out a change starting with this build where users who have enabled warning options for Windows Security under App & browser control > Reputation-based protection > Phishing protection will see a UI warning on unsafe password copy and paste, just as they currently see when they type in their password.
Local File Sharing Improvements:
We have made some improvements to the built-in Windows share window and nearby sharing for sharing local files from your PC.
Those improvements include:
We have redesigned the Windows share window to better match the Windows 11 design principles.
Everyone will now be able to email their files through Outlook directly within the Windows share window. Just click on the Outlook icon under the “Share using” section of the Windows share window.
The Windows share window now has a search box so you can now search for contacts across Outlook to share a file and the Windows share window will now display 8-10 suggested contacts to quickly share to – including emailing yourself a file.
Instead of a dropdown, you will see a button to turn on nearby sharing.
For nearby sharing, you will find your own PCs at the top of discovered devices under “Nearby Share”.
Files will share faster from one PC to another using Wi-Fi Direct.
And we’ve added “Share” to the context menu in File Explorer in addition to having the share icon at the top of the context menu.
The New Outlook for Windows is now an inbox app:
Starting with this build, the new Outlook for Windows Preview is now an inbox app. With the new Outlook for Windows, you can connect work and personal emails, calendars, and contacts in one secure place. Learn about the new Outlook for Windows here and the most recent set of updates for Insiders here. You can click here to learn more about the future of Mail and Calendar in Windows.
Post-OOBE Experiences:
We are trying out several new experiences for after completing OOBE (“out of box experience”) starting with this build. You may see one of these three experiences launched automatically on your device after completing OOBE.
These experiences will help you learn about new features in Windows 11 and help you complete your device setup. These experiences will only be available to a small subset of Insiders in the Dev Channel at first and you may see different variations of these experiences.
[ADDED] Auto Color Management (ACM) Expansion:
Last fall, we launched Auto Color Management (hardware accelerated system level color management) on select qualifying and specially provisioned SDR displays. Now, Insiders in the Dev Channel will be able to turn ACM on for their SDR displays and have all colors across all Windows apps, whether or not they are color-managed, appear accurately and consistently on every supported display.
To turn ACM on, go to Settings > Display > Advanced display, select correct display and turn on Automatically manage color for apps.
Changes and Improvements:
[Windows Copilot]:
The Windows Copilot Preview, which began rolling out with Build 23493, is now available to all Windows Insiders in the Dev Channel. Insiders may need to reboot to have it show up.
[Emoji]:
With the update of our color font format to COLRv1, Windows is now able to display richer emoji with a 3D like appearance with support coming soon to some apps and browsers. These emoji use gradients to bring the design style that our customers have been asking for. The new emoji will bring more expression to your communications.
[Voice Access]:
Voice access is now available via the accessibility flyout on the Lock screen.
[Backup and Restore]:
In addition to the new Windows Backup app, now you can configure your backup preferences in second-chance out of box experience (SCOOBE), so your apps, settings, creds, and files are backed up in the cloud just the way you want them. You’ll have peace of mind knowing the data you care about is protected and ready for you to restore from any PC.
[Settings]:
We have temporarily disabled the new Settings homepage that began rolling out with Build 23493 due to a bug that could cause some instability on Insider’s PCs. We plan to re-enable and roll this back out once that bug is fixed in a future flight.
We’ve added 2 additional energy recommendations under Settings > System > Power & battery > Energy recommendations for turning on dark mode and adjusting refresh rate to conserve energy.
Fixes:
[File Explorer]:
Fixed an issue where explorer.exe might crash when dragging tabs.
Fixed an issue which could cause explorer.exe to crash when opening Gallery.
We fixed the following issues for Insiders who have the modernized File Explorer address bar that began rolling out with Build 23475:
Fixed an issue which was causing explorer.exe to crash when trying to access an FTP address.
Fixed an issue where selecting the dropdown arrows in the address bar was opening a blank menu in the last flight.
We fixed the following issues for Insiders who have the modernized File Explorer Home that began rolling out with Build 23475:
Fixed an issue where File Type icons are displayed in place of file thumbnails for ‘Recommended’ section (applicable to Enterprise users).
Fixed an issue where Insiders signed in with an AAD account who tried to navigate the Recommended section on File Explorer Home with the tab key on the keyboard may have experienced an explorer.exe crash.
Fixed an issue where if you navigated from another group to the Recommended section using a keyboard, focus will not appear on the group header or files appropriately.
Fixed an issue where opening Home was crashing for some Insiders.
We fixed the following issue with commands on recommended files in File Explorer that began rolling out with Build 23403:
Fixed an issue where if you clicked on the Share command, it would bring up the Windows share sheet instead of the OneDrive share experience.
Fixed an underlying issue believed to be the cause of certain apps hanging when trying to use the open file dialog.
[Notifications]:
Fixed an issue where the copy button for quickly copying two-factor authentication (2FA) codes in notification toasts was not working as expected.
[Taskbar & System Tray]:
Fixed an issue where the notification badge on the widgets icon in the taskbar could get out of place.
[Search on the Taskbar]:
We fixed the issue causing text scaling to not work in the search flyout.
[Dynamic Lighting]:
Fixed an underlying ctfmon.exe crash (which could impact the ability to type) related to the Dynamic Lighting work.
Fixed an issue where all-device settings changes were not propagating to per-device settings.

New in Microsoft Windows SDK Build 25346 Canary Insider Preview (Apr 21, 2023)

Changes and Improvements:
Remote Desktop:
Redesigned the connection bar for remote desktop sessions to a new refreshed light / dark mode design that aligns with our Windows 11 design principles.
When sharing a local file in File Explorer to Outlook contacts – you will now see the option to quickly email the file to yourself. In addition, we’ve made improvements in loading your contacts from Outlook. This capability is not available for files stored in OneDrive folders as OneDrive has its own share experience.
Taskbar & System Tray:
ADDED: When right-clicking on the network icon in the system tray, we’ve added the option to diagnose network problems.
Settings:
We are introducing new presence sensor privacy settings and APIs. If you have a device with compatible presence sensors, you can now manage your privacy and block/allow certain apps from accessing these sensors. No images or metadata is collected by Microsoft and all processing is done locally on the device hardware to maximize privacy. You will find these settings under Settings > Privacy & security > Presence sensing here if your device supports it. App developers with devices with compatible presence sensors can target apps to request and read user presence information after requesting a human presence capability. Learn more about the API here.
Windows Security:
After fixing some issues based off Insider feedback, we are re-introducing the updated Windows Security (firewall) notification dialogs that match the Windows 11 visuals.
Narrator:
Narrator users who interact with Traditional Chinese characters are now able to do this with confidence while using Narrator and the IME candidate window in Windows. This was accomplished by creating a Traditional Chinese dictionary for detail reading. Narrator now consumes the dictionary to disambiguate each Traditional Chinese word. Users should be aware that Narrator detailed reading is only supported for the Taiwan language pack. The Hong-Kong language pack is not supported with Narrator.
Graphics:
It’s now easier to configure the state of HDR when running on battery! Simply go to Settings > System > Display > HDR and choose whether you want HDR (or HDR video streaming) to remain turned on when your PC is running on battery.

New in Microsoft Windows SDK Build 23430 Dev Insider Preview (Apr 13, 2023)

New in Microsoft Windows SDK Build 25314 Insider Preview (Mar 9, 2023)

Access Keys in File Explorer:
We are adding access key shortcuts into the XAML context menu in File Explorer. An access key is a one keystroke shortcut that allows a keyboard user to quickly execute a command in context menu. Each access key will correspond with a letter in the display name. It’s part of our effort to make File Explorer more accessible. To try this out, you can click on a file in File Explorer and press the menu key on your keyboard.
File Recommendations in File Explorer:
File Recommendations are coming to File Explorer Home to bring users the most relevant file content right to their fingertips. This feature (as pictured below) will be available to users signed into Windows with an Azure Active Directory (AAD) account. Files that are recommended will be cloud files associated with that account, either owned by the user, or shared with the user.
Introducing LSA Protection Enablement on Upgrade:
Local Security Authority (LSA) protection helps protect against theft of secrets and credentials used for logon by preventing unauthorized code from running in the LSA process and by preventing dumping of process memory. Starting with on upgrade, we will audit for a period of time to check for incompatibilities with LSA protection. If we do not detect any incompatibilities, we will automatically turn on LSA Protection. You can check and change the enablement state of LSA protection in the Windows Security application under the Device Security > Core Isolation page.
Narrator Outlook Support:
Narrator will now retrieve updates to its Outlook support when Narrator is started. You can learn more about the work we did for Outlook in Chapter 5 of the Narrator User Guide. We have not added any additional functionality to our Outlook support, but this work will allow updates to the Outlook experience to be made through the Microsoft Store. You will receive a notification after the download is completed to inform you that the update has been retrieved. With this change, Narrator’s Outlook support is limited to U.S. English only. Other languages will be supported in a future flight.
Changes and Improvements:
General:
To increase security in Windows 11, starting with this build and later we are disabling the Remote Mailslot Protocol by default. The legacy Remote Mailslot Protocol is a simple, unreliable, insecure, and unidirectional inter-process communications protocol between a client and server and was introduced in Windows NT 3.1 and will be deprecated in a future Windows release. If an application attempts to open a Remote Mailslot session over the SMB protocol, you may see one or more of the following errors:
3025 ERROR_REMOTE_MAILSLOTS_DEPRECATED
“The requested operation failed. Remote mailslots have been deprecated.”
If your application still uses Remote Mailslot, contact your vendor about updating their software. The legacy Remote Mailslot is not secure and should not be used under any circumstances. If you need to temporarily enable Remote Mailslot, run the following command in an elevated PowerShell console:
PS C:> Set-SmbClientConfiguration -EnableMailslots $true

New in Microsoft Windows SDK Build 25309 Insider Preview (Mar 3, 2023)

What’s new:
New volume mixer experience in Quick Settings:
We’re introducing a new enhanced volume mixer into Quick Settings! The updated audio quick settings experience brings a modern volume mixer that allows for quick customization of audio on a per-app basis, with additional control to swap devices on the fly. We’ve also added a new keyboard shortcut (WIN + CTRL + V) to bring you directly to the volume mixer for faster control of the experience. With this change, you can now tailor your audio experience better with more control and fewer clicks to better manage your favorite apps.
In addition, we’ve made it easier for users to enable their Windows Sonic experience with a quick access list of installed spatial sound technology. You can visit the Microsoft Store to find additional spatial sound technology to choose from such as Dolby and DTS.
Updated Touch Keyboard Settings:
After making some fixes, we are re-introducing the new touch keyboard setting we originally introduced with Build 25188 (and disabled with Build 25217) that replaces the “Show the touch keyboard when there’s no keyboard attached” checkbox under Settings > Time & language > Typing > Touch keyboard with a new dropdown menu with 3 options to control whether tapping an edit control should launch the touch keyboard:
“Never” suppresses the touch keyboard even when no hardware keyboard is attached.
“When no keyboard attached” will show the touch keyboard only when the device is used as a tablet without the hardware keyboard.
“Always” will show the touch keyboard even when the hardware keyboard is attached.
Auto Color Management (ACM) Expansion:
Back in October, we launched Auto Color Management (hardware accelerated system level color management) on select qualifying and specially provisioned SDR displays. Now, Insiders in the Dev Channel will be able to turn ACM on for their SDR displays and have all colors across all Windows apps, whether or not they are color-managed, appear accurately and consistently on every supported display.
To turn ACM on, go to Settings > Display > Advanced display, select correct display and turn on Automatically manage color for apps.
Voice access improvements:
Redesigned in-app command help page: We have completely renovated the in-app command help page in voice access to make it simpler to use and comprehend. The search bar allows users to quickly find commands and the different categories provide further guidance. Every command now has a description and examples of its variations, making it easier to understand and use.
Voice access is available in English dialects: We have extended voice access to support other English dialects such as English -UK, English – India, English – New Zealand, English – Canada, English – Australia.
When voice access is turned on for the first time, you will be prompted to download a speech model to enable on-device recognition of voice data. In case voice access does not find a speech model matching your display language, you can still choose to proceed ahead to use voice access in English – US.
Changes and Improvements:
General:
Starting with Build 25290, we started a new exploration of badging on the Start menu with two new treatments that some Insiders in the Dev Channel will see. Starting today, we’re trying out different text variants within these treatments. If you see one of these treatments, give us feedback on what you think. As a reminder, it is normal for us to try out different concepts in the Dev Channel to get feedback.
We’re trying out a more personalized second-chance out of box experience (SCOOBE) with a small subset of Windows Insiders in the Dev Channel.
Search on the Taskbar:
The search box on taskbar will be lighter when Windows is set to a custom color mode. Specifically, when the Windows 11 mode is set to dark, and the app mode is set to light under Settings > Personalization > Colors you will see a lighter search box on taskbar.
File Explorer:
Windows Insiders will begin noticing a “pizza” icon on the command bar in File Explorer. This icon denotes that an Insider is previewing the Windows App SDK version of File Explorer. Functionality in File Explorer remains unchanged, it just switches from using WinUI 2 to using WinUI 3.
Snap layouts:
After pausing this with Build 25300, we are un-pausing this with this build – we are trying out different treatments for snap layouts with Windows Insiders in the Dev Channel. We are investigating ways to improve the discoverability and usage of the snap layouts such as decreasing the hover time required to invoke the flyout when you mouse over the maximum/restore button in an app’s title bar. In addition to a few other tweaks, you’ll notice some treatments will also pull in the icon of the app window you are working in and adding a descriptive title. If you see one of these treatments, give us feedback on what you think. As a reminder, it is normal for us to try out different concepts in the Dev Channel to get feedback.
Windows Spotlight:
Starting today, we are disabling the different treatments we’ve been trying out for Windows Spotlight that began with Build 25281 due to an issue impacting the experience Insiders will have on these treatments. We plan to re-introduce an updated Windows Spotlight experience for Insiders in a future flight based on the feedback from Insiders from using these different treatments. As part of disabling these treatments, Insiders may need to go to Settings > Personalization and re-enable Windows Spotlight.
Input:
We have updated the Simplified Chinese handwriting recognition engine to be faster and more accurate as well as supported characters defined in GB18030-2022. Currently you can write characters in GB18030-2022 Level 2 and some of characters in GB18030-2022 Level 1 in the handwriting panel or directly into the text field when it’s supported. Please try it and let us know what you think.
Widgets:
We are beginning to roll out theme-aware icons for Widgets on the taskbar so that based on the user’s Windows theme (dark or light), the Widgets icons will display a theme-aware icon that will have a higher contrast ratio which will make information on the taskbar clearer for users, particularly for those with low-sight.
Settings:
Settings > Power & Battery has been updated to include settings for choosing what happens when interacting with your PC’s physical power controls.
Fixes:
General:
Fixed an issue causing USB devices (including keyboard and mouse) to not work for some Insiders after upgrading to Build 25295+.
Fixed an issue for some Insiders where if you’d uninstalled the previous flight, it would cause your Start menu and taskbar to cyclically crash.
Fixed an issue where when using Windows Hello to sign in with facial recognition, it may not have worked on Arm64 PCs.
Fixed an issue with the Windows Insider Program settings page showing a newer build was available in Windows Update even though you were on the latest available build in the Dev Channel.
Taskbar & System Tray:
Fixed multiple Explorer.exe crashes impacting taskbar and system tray.
Fixed a display issue that could result in the taskbar appearing duplicated when making resolution changes.
Fixed an issue which was causing app icons on the taskbar to appear on the wrong monitor for some Insiders with multiple monitors.
Widgets:
We fixed an issue where under certain circumstances third-party widgets were not loading as expected.
Search on the Taskbar:
Fixed rendering issues when using the touch keyboard with the search box on taskbar.
Fixed an issue when double clicking the search highlight glyph in the search box makes it disappear.
Fixed an issue where the search box would randomly disappear.
Fixed an issue where the search icon flips incorrectly for right-to-left (RTL) languages.
Fixed on issue where you might have seen some text flicker in the search box when you click into it.
Fixed an issue where the search box might disappear on one monitor if you are using multiple monitors.
Made some accessibility fixes to the settings for search under Settings > Personalization > Taskbar.
File Explorer:
Fixed an issue which caused Insiders with custom desktop icon arrangements / sizes to get set back to default in the previous build.
Fixed an underlying issue believed to be the cause of File Explorer unexpectedly jumping into the foreground sometimes.
The “Open in new tab” context menu option and middle clicking folders will now open the tab in the background rather than switching focus.
Fixed an issue where the close button could get stuck in a highlighted state when you moved your mouse across it.
Input:
Fix an issue where when using the French-Canadian layout for the touch keyboard, the letters output when typing didn’t always match what was displayed on the keys.
When using the Korean IME, CTRL + F10 should no longer open the IME context menu.
Settings:
Fixed an underlying issue believed to be the root cause of why some Insiders saw their startup app settings get reset with the previous build.
Going to Privacy & Security > Phone Calls should no longer crash Settings.
Windowing:
Fixed a high hitting DWM.exe crash in the last couple flights.
Other:
Fixed multiple issues that were preventing some of the new live captions language models from downloading correctly.
Fixed an underlying issue causing Insiders on Arm64 PCs to not be able to activate M365, with it citing a network issue.
Fixed a search indexer crash.
Fixed an underlying issue that could cause UWP apps to appear in English after upgrading although that wasn’t your display language.
Fixed an issue which was causing .appinstaller packages to fail to install with an error message that says “The parameter is incorrect” (even though it wasn’t).
Fixed an underlying issue causing certain cameras to not work in apps with the last flight.
Fixed an underlying issue which was leading to Microsoft Edge crashes for some Insiders in the last few flights.
NOTE: Some fixes noted here in Insider Preview builds from the Dev Channel may make their way into the servicing updates for the released version of Windows 11.

New in Microsoft Windows SDK Build 25284 Insider Preview (Jan 30, 2023)

New Widget:
With the release of Windows App SDK 1.2 developers are now able to create widgets for their apps. Users can access these experiences on their Windows 11 widgets board in current Dev Channel Insider Preview builds.
Ready to try out a new widget? The Messenger app now has a preview version of its widget available. To give it a try, go to the Microsoft Store and update to the latest version of Messenger. Then open the widgets board and navigate to the widgets picker by clicking the “+” button at the top-right of the board to pin your widget.
As you give this widget a try, please let us know what you think through the Widgets feedback link in the widgets picker. You should expect to see additional new widgets as more developers create and release widgets for their apps.
Fixes:
Taskbar & System Tray:
Fixed an issue where right clicking on certain icons in the hidden icons flyout would make the flyout dismiss rather than bringing up the context menu for that icon.
Search on the Taskbar:
The fixes only apply for Windows Insiders who received one of the different treatments for how search looks on the taskbar that began rolling out to Insiders with Build 25252:
Fixed an explorer.exe crash which was impacting some Insiders, related to the search box in the taskbar.
Input:
When search suggestions are triggered while using the Pinyin IME, keyboard focus will now stay on the current candidate. To move focus to the search suggestions, press Tab.
Windowing:
Fixed an issue for PCs with touch, where when using certain apps in full screen mode it wasn’t possible to swipe down from the top of the screen to make the title bar appear.
Other:
Fixed an issue which was causing certain apps to hang or crash when saving files as PDF in the last few builds.
Fixed an issue where using the cast option in an app may unexpectedly not show any devices in recent builds.
NOTE: Some fixes noted here in Insider Preview builds from the Dev Channel may make their way into the servicing updates for the released version of Windows 11.

New in Microsoft Windows SDK Build 25281 Insider Preview (Jan 20, 2023)

Changes and Improvements:
Settings:
Aligning with the new Windows 11 design principles, we’ve redesigned the graphics settings page under Settings > Display > Graphics to help you get to graphics configurations such as ‘GPU preference’ and ‘Auto HDR’ with greater ease. The functionality of these settings remains unchanged from prior versions of Windows, but we now have a more streamlined visual appearance. For more on all the graphics settings in Windows 11 – check out this blog post on the DirectX Blog.
The graphics settings page has been updated to better match the Windows 11 visuals.
The graphics settings page has been updated to better match the Windows 11 visuals.
When removing a paired Bluetooth device from Settings > Bluetooth and Devices, it will no longer pop up a prompt to confirm before removing it.
Fixes:
Taskbar & System Tray:
Updated the printer icon in the system tray when printing something, so it better aligns with other modern icons.
When navigating the taskbar using WIN + T and arrow keys, the position of the app icon should now be called out by Narrator (for example, File Explorer might say “one out of fifteen”, if it’s in the first position and there are 15 app icons on your taskbar).
File Explorer:
Updated the error dialog when network discovery is off so that it points to the correct location to enable it.
Fixed an explorer.exe crash which could happen when closing File Explorer.
Settings:
Fixed an issue where SSID wasn’t being populated on the properties page for your Wi-Fi in Network & Internet Settings.
In the scenario where you are prompted with the UAC dialog when switching a network between private and public, that UAC dialog should now come to the foreground rather than being behind other windows.
Fixed an issue where Quick Settings might not be able to re-open after going to the Wi-Fi section and closing the flyout.
Windowing:
Right clicking a snap group in Task View and selecting “show this group on all desktops” shouldn’t crash explorer.exe anymore.
Other:
Fixed an issue where Narrator wasn’t announcing when the @ mentions window popped up in Outlook.
Fixed an issue that could cause some app uninstalls to get stuck and fail the uninstall in the last few builds.
Fixed an issue which was causing the Windows print queue window to crash sometimes in recent builds.
Fixed an issue which could cause SQL Server Management Studio to fail to launch.

New in Microsoft Windows SDK Build 25252 Insider Preview (Dec 6, 2022)

New in Microsoft Windows SDK Build 25236 Insider Preview (Nov 2, 2022)

New in Microsoft Windows SDK Build 25227 Insider Preview (Oct 25, 2022)

Update Management Improvements:
Ensuring consistent and predictable timing of restarts for Windows updates is a key part of a successful update strategy. To improve the predictability of restarts, we have made the following changes for the Update Stack Orchestrator:
The Deadline calculation for both quality and feature updates is now based off the time the client’s update scan initially discovered the update. Previously, the Deadline was based off the release date of the update for quality updates and the reboot pending date for feature updates.
The Specify deadlines for automatic updates and restarts Group Policy setting was split into two separate settings to align with the existing configuration service provider (CSP) policies. The options in the Group Policy settings are the same for both feature and quality updates. Each of the new settings also has a Don’t auto-restart until end of grace period option. The new Group Policy settings are:
Specify deadlines for automatic updates and restarts for quality updates
Specify deadlines for automatic updates and restarts for feature updates
To reduce the impact of the Deadline calculation change, the defaults values for feature updates were changed to the following:
Update/ConfigureDeadlineForFeatureUpdates = 2 (previously 7)
Update/ConfigureDeadlineGracePeriodForFeatureUpdate = 7 (previously 2)
Changes and Improvements:
[Start menu]:
We are trying out a small change to the Start menu where some Insiders will see badging on their user profile notifying them that certain actions need to be taken.
[Widgets]:
We’re trying out some different positions of the header with new icons for the Widgets board to learn how to best optimize the Widgets board for our users. By using monoline icons, our goal is to bring consistent, clean, and accessible icons to communicate action and features with simple visuals for users.
[Input]:
The change to support the use of clipboard history (WIN + V) on password fields that began rolling out with Build 25206 is now available to all Windows Insiders in the Dev Channel.
We made a change to allow you to contribute your voice clips to Microsoft again even if on-device speech recognition is used.
[Voice typing]:
We are rolling out a change to sync voice typing settings, Automatic punctuation and Voice typing launcher, across all devices signed in using the same Microsoft account. You can toggle this feature via Settings > Accounts > Windows backup > Remember my preferences > Accessibility. This currently only works with Microsoft accounts today with AAD support coming later.
[Settings]:
A new dialog will warn users of potential data loss if they elect to change the partition style of their storage drive under System > Storage > Disks & Volumes > Disk Properties.
We’ve updated the ethernet and Wi-Fi property pages in Settings to now show gateway information in the network details summary.
Fixes:
[General]:
Fixed an issue which was causing some Insiders to not be able to upgrade to recent Dev Channel builds, with error 0xC1900101. As a reminder, this is a generic rollback error code, so if you are continuing to see this error after today’s update you may be encountering a different issue. If you do, please file feedback about it under Install and Update > Downloading, installing, and configuring Windows Update in the Feedback Hub.
[Tablet-optimized taskbar]:
NOTE: These fixes will only show if tablet-optimized taskbar (documented here) is enabled on your device. Tablet-optimized taskbar is still rolling out to Windows Insiders and not yet available for everyone.
Fixed an issue that was causing explorer.exe to crash while switching between apps on the tablet-optimized taskbar.
Start’s touch gesture should now follow your finger correctly with the tablet-optimized taskbar.
Improved how touch gestures and their animations with the tablet-optimized taskbar work with the touch keyboard.
You can now swipe up from within the taskbar with a pen to expand the tablet-optimized taskbar.
[System Tray Updates]:
NOTE: These fixes will only show if System Tray Updates (documented here) is enabled on your device. Tablet-optimized taskbar is still rolling out to Windows Insiders and not yet available for everyone.
Fixed an issue causing explorer.exe to crash when dragging icons in the system tray.
Right-clicking system tray icons should no longer cause the auto-hidden taskbar to hide incorrectly.
The show hidden icons panel in the system tray should no longer block context menus opened after it.
Fixed an issue where the first time you tried to open Quick Settings from the system tray it wouldn’t work.
Fixed an issue that was preventing system tray icons from updating in real time.
[File Explorer]:
When you scroll to the bottom of the navigation pane using a mouse wheel and try to scroll back up it should no longer get stuck at the bottom.
Fixed an issue which could cause certain apps to hang when opening the Open File Dialog or Save File Dialog.
Made another fix for a case which could lead to people seeing divider lines overlapping entries in the navigation pane.
[Start menu]:
Fixed an issue where dragging content across an open Start menu folder could cause a crash.
[Search]:
Made a fix to help address an issue where Search might not respond when clicking on the search icon in the taskbar.
Opening images from search should no longer unexpectedly open them in Print.
[Input]:
Fixed an issue where over time you might lose the ability to interact with certain games using the mouse.
Fixed an issue where the multiplication sign (×, U+00D7) wasn’t displaying correctly in the Yu Gothic font family for people with high resolution screens.
[Settings]:
The size of UWP app icons under Apps > Startup shouldn’t be so small now.
[Task Manager]:
Dragging Task Manager from the bottom area of the title bar to move the window should work now.
[Other]:
Fixed a couple issues causing certain apps to crash in recent builds, including OneNote. We are continuing to investigate feedback in this space.
Made a change to address an issue which could lead to performance degradation when using performance monitoring tools which leveraged the Microsoft-Windows-DxgKrnl ETW provider. This also impacted performance for Windows Mixed Reality. As a reminder, if you’re experiencing performance issues, please see here for steps on filing actionable performance feedback.
Fixed an issue where recording devices with “Listen to this device” enabled might not show in the volume mixer when they were playing sound.
If you reset your PC, the screen displayed while it’s resetting will now be black so it’s consistent with the upgrade screens.
If you were experiencing Gaming Services crashes while trying to play certain games in the previous Dev Channel flight, please check the Microsoft Store for Gaming Servicing updates, it should be resolved now.
Fixed an issue which was causing certain PCs to unexpectedly bugcheck on upgrade to the latest builds, with the error message saying “MULTIPROCESSOR_CONFIGURATION_NOT_SUPPORTED”.
Fixed an issue from the previous flight which could cause Miracast to unexpectedly not be able to connect.

New in Microsoft Windows SDK Build 25217 Insider Preview (Oct 6, 2022)

New features:
Developers with packaged Win32 apps will be able to create and test 3rd party widgets locally if their machine is running in Developer Mode under Settings > Privacy & security > For developers. Developers will also need to be on the latest Insider Preview build from the Dev Channel to get the necessary update for the Widgets Board (version 521.20060.1205.0 or higher). For more information on widgets including pre-requisites please see Widget Design Docs and Widget Dev Docs.
Known limitations:
3rd party widgets can only be tested locally on the latest Insider Preview builds from the Dev Channel for this preview release. Once WinAppSDK 1.2 GA is out, users on released versions of Windows 11 can begin acquiring 3rd party widgets via the Microsoft Store for shipped versions of their app.
Support for 3rd party PWA widgets will also be coming as part of a future Microsoft Edge release.
Cloud Suggestion in Simplified Chinese IME:
We are trying out some changes that will allow you to easily type fresh, hot, and popular words in Simplified Chinese. The changes include an improved cloud suggestion and integrated search suggestion. The cloud suggestion adds the most relevant word from Bing to the IME candidate window. We’ve updated the back-end logic so that we can provide better, fresh suggestions.
Changes and Improvements:
[Input]:
We began rolling out the new Tamil Anjal keyboard for the Tamil language with Build 25179 and starting today, it is now available to all Windows Insiders in the Dev Channel. To add it, make sure Tamil (Singapore), Tamil (Malaysia), Tamil (Sri Lanka), or Tamil (India) is listed under Settings > Time & Language > Language & Region, and then click the “…” next to the language, select Language Options, and add Tamil Anjal (QWERTY) to the list of keyboards.
We have disabled the new touch keyboard setting that first began rolling out to Windows Insiders in Build 25188 for now. We hope to bring this feature back in the future after further refinement of the design. As we’ve mentioned previously, features we try out in the Dev or Beta Channels may not always ship.
Fixes
[Tablet-optimized taskbar]:
NOTE: These fixes will only show if tablet-optimized taskbar (documented here) is enabled on your device. Tablet-optimized taskbar is still rolling out to Windows Insiders and not yet available for everyone.
We fixed the issue causing the taskbar to sometimes collapse when it should be expanded if there are no running windows on the desktop.
We fixed an issue that would occur when using the left or right edge gestures resulting in the Widgets or Notification Center (respectively) to overlap with or look truncated by the taskbar.
Fixed an issue that was causing the tablet-optimized taskbar to crash explorer.exe while switching apps.
Fixed an issue that was causing the tablet-optimized taskbar to crash explorer.exe if you entered the overflow flyout.
[Windowing]:
Fixed an issue where the close button for window preview thumbnails in Task View was drawing slightly outside the bounds of the thumbnail.
Fixed an issue where when switching between windows in recent builds you might see the entire window flash black for a frame while rendering.
Fixed an issue causing Miracast video quality to be very slow and stuttering in recent flights despite having a solid internet connection.
[System Tray Updates]:
These fixes will only show if System Tray Updates (documented here) is enabled on your device. Tablet-optimized taskbar is still rolling out to Windows Insiders and not yet available for everyone.
Fixed an issue so that Quick Settings items can now be rearranged with touch again.
[Settings]:
Fixed an issue under Network and Internet > Advanced Network Settings, where certain networks were displaying the wrong link speed.
[Other]:
Fixed an issue where remote desktop on ARM64 PCs was unexpectedly not using UDP and only TCP.
Some fixes noted here in Insider Preview builds from the Dev Channel may make their way into the servicing updates for the released version of Windows 11.
Known issues
[General]:
We’re looking into reports that audio stopped working for some Insiders after upgrading to the latest flights.
We’re investigating reports of a few different apps having started crashing in recent builds.
We’re investigating reports that various UI elements in apps appear to be disappearing and reappearing sometimes in recent builds.
[Tablet-optimized taskbar]:
The taskbar sometimes flashes when transitioning between desktop posture and tablet posture.
The taskbar takes longer than expected to transition to the touch-optimized version when switching between desktop posture and tablet posture.
When using the bottom right edge gesture to see Quick Settings, the taskbar sometimes stays stuck in the expanded state, instead of dismissing to collapsed state.
[Widgets]:
In right-to-left display languages like Arabic, content animates out of view before the widgets board resizes when clicking to expanded view of the widgets board.
Notification badge number may appear misaligned on the taskbar.

New in Microsoft Windows SDK Build 25211 Insider Preview (Oct 4, 2022)

[Taskbar]:
Based on your feedback, we’ve added Task Manager to the context menu when right-clicking on the taskbar. Let us know what you think!
Context menu when right-clicking on the taskbar shows link to Task Manager.
Context menu when right-clicking on the taskbar shows Task Manager.
[System Tray]:
This build includes preliminary support to rearrange System Tray icons for Insiders who have the System Tray updates that began rolling out with Build 25197. Further improvements for this experience are coming soon. As a reminder, these System Tray updates are still rolling out and are not available to all Insiders just yet. If your PC does not have these changes, your System Tray experience will remain the same as before.
[File Explorer]:
Fixed an issue where the top part of File Explorer (with the search and address box) couldn’t be interacted with when File Explorer was in full screen mode (F11).
[Settings]:
For the time being, you will no longer be able to uninstall apps with interdependencies (e.g., Steam and gaming apps running on Steam) or repair Win32 apps under Settings > Apps > Installed apps. You will still be able to modify and uninstall Win32 apps without interdependencies.
Fixes:
[General]:
We are beginning to roll out a server-side fix for the issue causing a “date, time and time zone settings are incorrect” message to be improperly displayed, which was also preventing the installation of the latest Insider Preview builds from proceeding.
[File Explorer]:
Fixed the issue where the command bar items like copy, paste, and empty Recycle Bin were unexpectedly not be enabled sometimes when they have been.
Fixed an issue which was causing unexpected black bars on the sides of horizontal scroll bars when using dark mode.
[Start]:
When you have Start set to show more pinned items, the animation for opening folders lower on the page will now appear from the right place.
[Taskbar]:
Fixed a high hitting Shell Experience Host crash in recent Dev Channel builds, impacting Quick Settings launch reliability.
[Input]:
The gripper for moving the emoji panel and touch keyboard should now update color correctly when you switch between dark and light mode.
Fixed a memory leak when repeatedly invoking the input switcher.
[Settings]:
Fixed a Settings crash which could happen when changing your mobile hotspot name.
Updated the examples used in the Short time selection under Time & Language > Language & Region > Regional Format, to make the 12 hour options (vs 24 hour) a little more obvious by showing morning and afternoon times.
[Task Manager]:
Tweaked the graphs in the Performance page to use a bit more transparency so it’s easier to see the grid lines underneath.
Made another fix to improve Task Manager reliability.
Fixed a black flash while might be seen when launching Task Manager in light mode.
Fixed a few issues where the font color of certain elements wasn’t correct / readable when using a contrast theme.
[Other]:
Fixed an issue where Narrator would read out the details of the calendar that opens from selecting the date and time from the taskbar when it was collapsed.
Fixed an issue where explorer.exe was crashing repeatedly in Windows Sandbox for Insiders with the tablet optimized taskbar and updated system tray.
Fixed an issue which could lead to hangs in certain apps when opening the Open File Dialog.
Fixed an issue which was making the screen go black for some Insiders when enabling HDR recently.
Fixed an issue where after using the Open With dialog, the process might stay running even if it wasn’t in use anymore.
Fixed an issue which was leading to increased CPU usage for WSL2 users on ARM64 PCs even when WSL was idle.
Fixed an issue where closing the print dialog could lead to an app crash in the last couple flights.

New in Microsoft Windows SDK Build 25201 Insider Preview (Sep 16, 2022)

Changes and Improvements:
General:
Thank you to all the Insiders who gave us feedback on the different visual treatments for search on the taskbar! Starting with this week’s flight, we are concluding the exploration of these treatments, so if you received this experience, it will be removed on your next reboot.
File Explorer:
File Explorer search will now show results as you type. The full search results page will update live without needing to press enter. We are beginning to roll this out, so the experience isn’t available to all Insiders just yet.
We’re experimenting with adding more cloud files to search results from Home.
Fixes:
General:
Fixed the issue in the last few flights causing a bugcheck when moving your mouse in certain games.
File Explorer:
As a one-time change to help people find their folders with the navigation pane updates, if the default folders pinned to File Explorer’s navigation pane had been unpinned, they will be re-pinned after upgrading.
Fixed a memory leak which was happening when closing File Explorer windows.
Taskbar:
The apps in the taskbar overflow flyout should now be in the correct order when using an Arabic or Hebrew display language.
Input:
Fixed an issue where if you hadn’t already opened OneNote once, using the pen click to invoke OneNote wouldn’t work.
Made a change to help address an issue where it wasn’t possible to use the Pinyin IME to type in the chat box of certain games.
Settings:
Fixed an issue which was causing sporadic Settings app crashes.
Removed an erroneous white pixel in the icon animation when clicking the Apps category in Settings.
Widgets:
We have fixed the issue where in some cases, the notification banner for some badging would not appear in the widgets board.
Windowing:
Fixed an issue where explorer.exe was crashing if you dragged a snap group in Task View and dropped it into another Desktop.
Fixed an issue related to interacting with the Desktops flyout in the taskbar which was causing periodic explorer.exe crashes.
Fixed a DWM crash in the last few flights which could lead to a brief black screen when rotating a tablet.
Fixed a rare issue which could cause a DWM crash when watching videos in certain UWP apps in recent builds.
Task Manager:
Fixed an issue impacting Task Manager reliability.
Other:
Fixed an issue causing some Insiders to unexpectedly get the message “it is not possible to connect to this network” when connecting to certain Wi-Fi networks recently, although the network was working with other devices.
Fixed an issue which could lead to Windows Sandbox opening to just a black window on certain PCs.
NOTE: Some fixes noted here in Insider Preview builds from the Dev Channel may make their way into the servicing updates for the released version of Windows 11.
Known issues:
General:
We’re looking into reports that audio stopped working for some Insiders after upgrading to the latest flights.
We’re investigating reports of a few different apps having started crashing in recent builds.
We’re investigating reports that some Insiders are seeing OneDrive setup asking for permission to set up every time their PC reboots.
File Explorer:
We’re working on the fix for an issue where command bar items like copy, paste, and empty recycle bin may unexpectedly not be enabled when they should be.
Settings:
We’re investigating some issues where uninstalling certain apps using Settings > Apps > Installed apps isn’t working correctly.
Tablet-optimized taskbar:
The taskbar sometimes flashes when transitioning between desktop posture and tablet posture.
The taskbar takes longer than expected to transition to the touch-optimized version when switching between desktop posture and tablet posture.
Using the left or right edge gestures can result in the Widgets or Notification Center (respectively) to overlap with or look truncated by the taskbar.
When using the bottom right edge gesture to see Quick Settings, the taskbar sometimes stays stuck in the expanded state, instead of dismissing to collapsed state.
When there are no running windows on the desktop, the taskbar can sometimes collapse, when it should be expanded.
Widgets:
NEW In right-to-left display languages like Arabic, content animates out of view before the widgets board resizes when clicking to expanded view of the widgets board.
Notification badge number may appear misaligned on the taskbar.

New in Microsoft Windows SDK Build 25182 Insider Preview (Aug 18, 2022)

Fixes:
General:
We fixed the issue that was causing devices with low disk space to receive download error 0x80070001 in Windows Update trying to install the latest Dev Channel build.
Fixed an issue leading to some Insiders experiencing a decrease in FPS when playing certain games in recent flights due to the wrong graphics card being used.
Taskbar:
Fixed an issue which could lead to the taskbar overflow flyout unexpectedly appearing on the opposite side of the screen. This was incorrectly noted as fixed in Build 25179.
We fixed an issue that was causing the animation on the taskbar that plays when a user switches from using a device in tablet posture to desktop while in overflow to incorrectly show when logging in.
Fixed an explorer.exe crash which could happen when determining if the taskbar overflow should display. This could happen when switching out of a full screen game.
Start:
Fixed a Start menu crash that could prevent apps from launching from Start.
File Explorer:
Fixed an issue causing the left-half of the File Explorer title bar to not be draggable via mouse or touch for some Insiders.
We fixed an issue causing Home, Documents, Pictures, and potentially other folders to become unexpectedly duplicated in File Explorer’s navigation pane or appear on the desktop.
Selecting multiple folders and then using the context menu option to open them in a new tab will now actually do that, rather than opening the first folder in a new tab and all the others in a new window.
Updated the logic for Narrator so that if you navigate to a OneDrive folder using the navigation pane in File Explorer, Narrator will now explicitly say it’s a OneDrive folder, and not just something like “YourName – Personal”.
Other:
Fixed an issue which could cause the camera light on a laptop to get stuck on after logging into your PC.
Fixed an issue believed to be the root cause of some Insiders seeing bugchecks when opening and copying files from network locations.
NOTE: Some fixes noted here in Insider Preview builds from the Dev Channel may make their way into the servicing updates for the released version of Windows 11.
Known issues:
General:
Some games that use Easy Anti-Cheat may crash or cause your PC to bugcheck.
We’re looking into reports that audio stopped working for some Insiders after upgrading to the last flight.
We’re investigating reports of a few different apps having started crashing in recent builds.
[NEW] A small percentage of Insiders are experiencing repeated explorer.exe crashes after attempting to access certain folders on your system on Builds 25179+. Insiders who have the Xbox Dev Kit installed will hit this. We’re working on a fix for this in a future flight.
File Explorer:
The up arrow is misaligned in File Explorer tabs. This will be fixed in a future update.
We’re working on the fix for an issue where the search box background in File Explorer might be the opposite color of your current mode.
We’re working on the fix for an issue causing the delete key to unexpectedly not work on files in File Explorer. If you encounter this, you should still be able to use the context menu to delete.
We’re working on the fix for an issue where the taskbar isn’t able to display if File Explorer is maximized and you have the taskbar set to auto-hide.
Widgets:
Notification badge number may appear misaligned on the taskbar.
In some cases, the notification banner for some badging will not appear in the widgets board.
Printing:
We’re working on the fix for an issue in recent Dev Channel flights causing lines to not be included when printing tables from certain apps.

New in Microsoft Windows SDK Build 25179 Insider Preview (Aug 11, 2022)

Changes and Improvements:
General:
The spelling dictionary will now use a language-neutral word list and we are trying out syncing this across all devices that use the same Windows account. Users can toggle this feature via Settings > Accounts > Windows backup > Remember my preferences > Language preferences. This currently only works with Microsoft accounts today with AAD support coming later.
File Explorer:
File Explorer tabs and navigation updates (which began rolling out to the Dev Channel with Build 25136) are now rolling out to everyone in the Dev Channel. If you don’t see these features right away, please try rebooting. If that doesn’t work, please file feedback in Feedback Hub.
We’re trying out different experiences in File Explorer to show search results.
Input:
We’re adding the Tamil Anjal keyboard for the Tamil language. It’s a popular keyboard for inputting Tamil characters, so if you speak this language, please try it out! This keyboard is currently rolling out to a subset of Insiders while we evaluate the quality. To add it (once it’s available to you), make sure Tamil (India) is listed under Settings > Time & Language > Language & Region, and then click the “…” next to the language, select Language Options, and add it to the list of keyboards.
We are rolling out a small tweak to improve the key repeat rate for the traditional touch keyboard layout, as well as the default touch keyboard layout, so it feels more responsive. Now it has the rate of 20 keys per second (for example, when holding down the delete key).
Other:
Updated the default duration captured by powercfg -sleepstudy from 3 to 7 days.
Fixes:
General:
Fixed an issue causing hangs and crashes in apps (like Excel) when attempting to print in the last couple flights.
Fixed a few issues impacting explorer.exe reliability.
File Explorer:
The Mount option when right clicking things like ISO files should now show an icon in the context menu.
Fixed an issue where the min / max / close button might not be visible in File Explorer when using a contrast theme.
Widgets:
We have fixed the issue causing Widgets preferences (temperature units and pinned widgets) to unexpectedly get reset to default.
Taskbar:
Fixed an issue which could lead to the taskbar overflow flyout unexpectedly appearing on the opposite side of the screen.
Input:
Fixed a sporadic crash impacting reliability of the input switcher.
Fixed an issue where when Suggested Actions was enabled, if you copied multiple items in a row to your clipboard history, some of the items might not display after you pressed WIN + V.
Settings:
Fixed an issue which was causing Settings to crash on launch sometimes.
Improved alignment of the “Scan for phone” button displayed on Accounts > Sign-In Options under Dynamic Lock when your phone failed to connect.
Your preferred state for the Suggested Actions setting under System > Clipboard should persist upgrade going forward from this build.
Windowing:
Fixed an issue where when resizing certain app windows near the edge of the screen when using mixed DPI monitors might unexpectedly cause the window to jump and shrink.
Other:
We made a change so that the media controls in Quick Settings will more reliably not load old media you’re no longer using.
Fixed an issue causing one of the characters in the bugcheck text to not display correctly (as a box) when the display language was set to Chinese.
Fixed an issue causing app install failures with error 0x80080204 in the last few flights.
Improved date / time recognition for existing supported locales when using Suggested Actions.

New in Microsoft Windows SDK Build 25169 Insider Preview (Jul 28, 2022)

What’s new:
Multi-App Kiosk Mode:
Multi-app kiosk mode is a lockdown feature for Windows 11 that allows an IT administrator to select a set of allowable apps to run on the device, while all other functionalities are blocked. This enables you to create multiple different apps and access configurations for different user types, all on a single device.
Some lockdown customizations include:
Limiting access to Settings, except selected pages (e.g., Wi-Fi and screen brightness)
Lock down the Start menu to show only allowed apps.
Block toasts and pop-ups that lead to unwanted UI.
Changes and Improvements:
[General]:
The changes noted here in this previous blog post on changes to how IT admins enroll devices in the Windows diagnostic data processor configuration option are now included in this build (Build 25169 and higher). A reminder that if the documented changes are not acceptable, it is recommended to pause flighting.
[Windows Spotlight]:
You can now enable Windows Spotlight on the desktop via a brand-new Windows Spotlight theme now included in the latest builds in the Dev Channel under Settings > Personalization and Settings > Personalization > Themes. Additionally, you can make your own custom themes with Windows Spotlight’s rotating images as well.
The brand-new Windows Spotlight theme.
The brand-new Windows Spotlight theme.
[Input]:
We have updated the U.S. English (EN-US) handwriting model to be faster and more accurate. Use the updated Handwriting Panel for ink-to-text and let us know what you think.
[Settings]:
Settings now supports managing apps which were earlier only supported from Control Panel. This includes uninstallation of apps which have inter-dependencies (e.g., Steam and gaming apps running on Steam), repair and modifying of Win32 apps.
[Windows Security]:
The Windows Security app version is now displayed in Windows Security settings under About.
Fixes:
[File Explorer]:
Fixed an issue leading to the Azure Information Protection context menu entry unexpectedly showing with the name Microsoft.Azip.RightClick after an upgrade.
[Taskbar]:
Fixed an explorer.exe crash that was preventing taskbar from loading when launching Microsoft Teams meetings sometimes.
Fixed a couple explorer.exe crashes some Insiders were experiencing related to taskbar overflow.
[Start]:
Fixed an issue that was removing the “More” button in Start’s Recommended section.
[Settings]:
Fixed an issue where after using the reveal password button in the Wi-Fi section of Quick Settings, the text field might unexpectedly lose focus.
[Input]:
We made a small tweak to improve the key repeat rate for the traditional touch keyboard layout, as well as the default touch keyboard layout, so it feels more responsive. Now it has the rate of 20 keys per second (for example, when holding down the delete key).
[Other]:
Fixed an issue believed to be the root cause of some Insiders experiencing bug checks when opening and copying files from network locations recently.
Fixed an issue which could cause desynced audio when recording game play with the Xbox Game Bar.
Fixed an issue leading to error code 0x80004005 when using the network troubleshooter.
Made some adjustments to fix an issue where the scrollbar in certain places (like File Explorer) was unexpectedly wide when using high DPI scaling.
Fixed an issue believed to be the root cause of Windows Security saying standard hardware security wasn’t supported on devices where it was actually supported, as well as showing a warning in the taskbar but not showing any issues when Windows Security was launched. Please note, due to timing of the payload, these issues may come back after the next Windows Security update. It will go away again after a future Windows Security update.
Known issues:
[General]:
We’re investigating reports that SQL Server Management Studio is failing to launch for some Insiders.
Some games that use Easy Anti-Cheat may crash or cause your PC to bugcheck.
[File Explorer]:
The up arrow is misaligned in File Explorer tabs. This will be fixed in a future update.
We’re working on a fix to address reports that launching File Explorer in certain ways when using dark mode (for example, from the command line) is showing the body of File Explorer unexpectedly in light mode.
[Widgets]:
Notification badge number may appear misaligned on the taskbar.
In some cases, the notification banner for some badging will not appear in the widgets board.
We’re working on the fix for an issue causing Widgets preferences (temperature units and pinned widgets) to unexpectedly get reset to default.

New in Microsoft Windows SDK Build 25163 Insider Preview (Jul 21, 2022)

Taskbar Overflow:
We’re reintroducing taskbar overflow, with a newly designed experience for Windows 11. This taskbar experience has been thoughtfully crafted to offer you a more productive switching and launching experience when space is constrained. Your taskbar will automatically transition into this new overflow state when it has hit its maximum capacity. In this state, taskbar will offer an entry point to an overflow menu that allows you to view all your overflowed apps in one space.
Taskbar will offer an entry point to an overflow menu that allows you to view all your overflowed apps in one space.
The overflow menu will contain many of the current taskbar behaviors users are familiar with, such as supporting pinned apps, jump list, and extended UI. After invoking overflow, the menu will quietly dismiss once you click outside of it or navigate to an application.
Improved nearby sharing:
The discovery of devices under nearby share when sharing a local file from the desktop, File Explorer, Photos, Snipping Tool, Xbox, and other apps that use the built-in Windows share window has been enhanced by using UDP (Network needs to be set to private) along with Bluetooth to discover nearby devices. You will now be able to discover and share to more devices including desktop PCs.
You can now discover and share to more devices with nearby sharing via the built-in Windows share window.
Share local files to OneDrive:
When sharing a local file from the desktop, File Explorer, Photos, Snipping Tool, Xbox, and other apps that use the built-in Windows share window, you can choose OneDrive as a target to directly upload the file to OneDrive and share it further along with access control options. All this can be done right from sharing local files in File Explorer without any context switches or opening the OneDrive app.
You can choose OneDrive as a target to directly upload the file to OneDrive via the built-in Windows share window.
Fixes:
File Explorer:
Fixed an explorer.exe crash when dragging tabs around.
Did some work to fix a memory leak when using tabs with File Explorer.
Fixed an issue where the preview thumbnail for File Explorer in the taskbar, ALT + Tab, and Task View might show the title of an adjacent tab and not the currently selected one.
If “Show all folders” is enabled, the dividers in File Explorer’s navigation pane should no longer show. With this change, it should also address the issues where dividers were unexpectedly showing in some other folder pickers.
Fixed an issue where Narrator wasn’t reading out the titles of tabs as focus moved through them.
Fixed an issue where a closed tab might appear again in File Explorer after you dragged File Explorer across your monitors.
Fixed an issue where the tab row might unexpectedly expand vertically, covering the command bar contents.
Removable drives should no longer unexpectedly be displayed in a section by themselves in the navigation pane, which was breaking up the section with This PC and Network.
Fixed an issue where the add new tab button wasn’t clearly visible when using Aquatic or Desert contrast themes.
The add new tab button shouldn’t overlap with the minimize button in the title bar when using text scaling with a lot of tabs open anymore.
Taskbar:
Fixed a rare explorer.exe crash that could happen while on a Microsoft Teams call, related to sharing windows from the taskbar.
Settings:
Made a change to help fix an issue where using Windows Spotlight on the desktop might revert to a solid color background.
Improved the padding around the uninstall button when using Apps > Installed Apps in grid view.
Fixed a couple issues that could lead to Quick Settings crashing on launch.
Input:
Fixed an issue which was leading to certain apps freezing after a copy action if Suggested Actions was enabled.
Other:
Fixed a high hitting crash impacting suggested actions reliability.

New in Microsoft Windows SDK Build 25158 Insider Preview (Jul 13, 2022)

Changes and Improvements:
General:
Thank you to all the Insiders who gave us feedback on our first exploration of lightweight interactive content on the Windows desktop! Starting with this week’s flight, we are concluding this initial exploration, so if you received this experience, it will be removed on your next reboot.
As described in our in our blog post here, Windows Insiders who use the Dev Channel may get to try out new ideas, longer lead features, and experiences that are intended to help validate concepts. Starting with this build, some devices will receive different visual treatments for search on the taskbar. We are excited to learn from your feedback on this, so please use the Feedback Hub to provide feedback if you receive this experiment. NOTE: A reboot is required after updating to this build to trigger this experience but please note that not all Windows Insiders will have this experience enabled even after reboot.
DNS over TLS:
DNS over TLS testing is now available for Windows DNS client query protection. DoT is another protocol in addition to DNS over HTTPS (DoH) which is already supported in Windows 11 and Windows Server 2022. For setup instructions, see this Windows Networking blog post. The setup requires command line use and is recommended for advanced networking users.
Input:
The Nyala font has been updated to support syllables for the Gurage language orthography from the Ethiopic Extended-B Unicode range. Also revised and replaced Ethiopic kerning to fix gaps and errors in earlier implementation improving the overall texture of text in Ethiopic languages.
Fixes:
General:
Fixed an issue causing some Insiders to experience bugchecks with error message KMODE_EXCEPTION_NOT_HANDLED in NetAdapterCx.sys in recent flights.
Fixed an issue which was leading some PCs hanging at black screen when resuming from a low power state in recent flights.
Fixed an issue believed to generally be impacting performance across Windows shell experiences in the last few flights.
Fixed an issue where the Mica material and Acrylic blur effect was rendering incorrectly in OS surfaces like the Start menu, Notification Center and other areas sometimes in recent flights.
File Explorer:
Fixed an issue where closing command bar flyouts could in some rare cases crash explorer.exe.
Fixed an issue which could lead to explorer.exe crashing when navigating through File Explorer with OneDrive enabled.
CTRL + F4 should work to close the current tab now. We updated the tooltip when hovering over a tab to suggest using CTRL + W to close the tab (rather than CTRL + F4, which didn’t work).
Opening a zipped folder in a new tab should no longer have a blank tab name.
If focus is on the tab row, CTRL + W will no longer unexpectedly close two tabs instead of just the tab in focus.
Fixed an issue where CTRL + Tab wouldn’t cycle in the correct order after rearranging tabs.
We made some adjustments so when using “Show full path in title”, the folder name is always visible in the tab at the top of File Explorer.
Taskbar:
Fixed an underlying issue which could lead to pinned app icons getting stuck on the taskbar after uninstalling the app in recent flights.
Fixed a high hitting explorer.exe crash in the last few flights related to loading Widgets.
Start:
Start shouldn’t crash anymore when using CTRL + Shift + Right Arrow to move a pinned app into a folder that’s the last item in Start.
Fixed a crash some Insiders were experiencing when opening Start.
Narrator will now read the prompt that opens when trying to uninstall an app from Start correctly.
Search:
Fixed an issue when using IRowsetPriorititization where setting the scope priority for a query rowset did not properly alter the indexing speed of the rowset, resulting in slower indexing overall.
Searching for “power mode” should now return an entry for power modes in Settings.
Settings:
Updated the “System” entry under Network & Internet > Advanced network settings > Data Usage, to now be called “System and Windows Update” to help make it more clear.
Made another fix to address an issue where the “Listen to this device” option for audio devices would stop working after a reboot.
Fixed a crash some Insiders were seeing when navigating Bluetooth & Devices > Printers & Scanners.
Fixed an issue where the “Allow Bluetooth devices to find this PC” checkbox under Bluetooth & Devices > Devices > More Bluetooth Settings wouldn’t display the correct state sometimes.
Fixed an issue which was causing Quick Settings to crash for ARM64 PCs when attempting to use the Cast section to cast to certain devices.
Fixed an issue that could cause the eye icon beside the Wi-Fi password box in Quick Settings to disappear after its first use.
Input:
Fixed a crash in textinputhost.exe initialization which was happening in some cases in recent flights.
Fixed an issue where the “Sync across your devices” option under Settings > System > Clipboard wouldn’t stay enabled.
Updated the Times New Roman font family so it includes U+061D / ARABIC END OF TEXT MARK.
Windowing:
We made some improvements to help with the performance of opening Task View.
Narrator:
Made a fix so the two-finger triple tap touch gesture to dismiss context menus with Narrator is working correctly again.
Task Manager:
Fixed an issue where some services were being unexpectedly grouped under Microsoft Edge when they weren’t actually child processes.
Other:
Fixed an issue which would lead to losing network connectivity after turning on mobile hotspot.
Addressed an issue that could result in the mobile hotspot button getting unexpectedly stuck in a greyed out state in certain cases.
Fixed an underlying issue which was leading to Your Phone crashes in certain cases.
Fixed an underlying issue where Microsoft Defender Application Guard windows weren’t visible in the last few flights.
Fixed a crash that could happen when using suggested actions.
Fixed an underlying issue when recording game clips using the Xbox Game Bar, which could lead to the resulting saved video not displaying correctly when viewed later on an iOS device.
Made some improvements to help address an issue resulting in apps in the Microsoft Store failing to download with error 0x80080204.
Addressed an underlying issue leading to Microsoft Store app remediation failures with error 0x803FB004.
Did some work to address an issue where the print dialog wasn’t launching centered in the application (for example, in Notepad).
Known issues:
General:
[NEW] We’re investigating reports that SQL Server Management Studio is failing to launch for some Insiders.
Some games that use Easy Anti-Cheat may crash or cause your PC to bugcheck.
File Explorer:
The up arrow is misaligned in File Explorer tabs. This will be fixed in a future update.
We’re working on a fix to address reports that launching File Explorer in certain ways when using dark mode (for example, from the command line) is showing the body of File Explorer unexpectedly in light mode.
Widgets:
[NEW] Notification badge number may appear misaligned on the taskbar.
[NEW] In some cases, the notification banner for some badging will not appear in the widgets board.
We’re working on the fix for an issue causing Widgets preferences (temperature units and pinned widgets) to unexpectedly get reset to default.
Live captions:
Certain apps in full screen (e.g., video players) prevent live captions from being visible.
Certain apps positioned near the top of the screen and closed before live captions is run will re-launch behind the live captions window positioned at top. Use the system menu (ALT + Spacebar) while the app has focus to move the app’s window further down.

New in Microsoft Windows SDK Build 25151 Insider Preview (Jun 30, 2022)

New in Microsoft Windows SDK Build 25145 Insider Preview (Jun 23, 2022)

General:
Every Microsoft customer should be able to use our products knowing we will protect their privacy and give them the information and tools needed to easily make privacy decisions with confidence. The new App usage history features, which began rolling out to Insiders with Build 25140, gives users a 7-day history of resource access for Location, Camera, Microphone, Phone Calls, Messaging, Contacts, Pictures, Videos, Music library, Screenshots and apps through the Settings experience. You can find this new information under Settings > Privacy & security > App permissions (simply click on one of the app permissions categories such as microphone and look at “Recent activity”).
Suggested Actions:
Suggested Actions, which began rolling out with Build 25115, is now available to all Windows Insiders in the in the U.S., Canada, and Mexico.
File Explorer:
Middle clicking a folder in the body of File Explorer will now open it in a new tab.
Fixes:
General:
Fixed an issue causing Windows Insiders on Surface Pro X devices to hit a black screen when attempting to resume from hibernate.
Fixed a bugcheck that some Insiders were experiencing with SYSTEM_THREAD_EXCEPTION_NOT_HANDLED related to USBs.
Fixed a bugcheck with error 0x1CA SYNTHETIC_WATCHDOG_TIMEOUT that could happen sporadically on some PCs after left idling for some time. This could happen when a laptop lid was closed, making it appear that the laptop had rebooted while sleeping.
Fixed an issue from the last two builds that was leading to InventorySvc consuming an unexpectedly high volume of memory the longer it was running.
File Explorer:
The row of tabs should now be included in the keyboard focus cycle when pressing Tab or F6. Once focus is in the tab row, you can use left or right arrow keys to navigate through them.
Fixed an issue where the tab order when using CTRL + Tab would be wrong if you’d rearranged the tabs in File Explorer.
Start:
Narrator will now read the dialog that opens when uninstalling an app from its context menu in Start and those options correctly.
The animation when selecting the More button in Start’s Recommended section in right-to-left (RTL) languages should now appear correctly.
Taskbar:
When dismissing notification center using your keyboard, its closing animation will now show correctly.
Settings:
Typing a number in the Settings search box when using an Arabic display language should no longer show boxes.
Fixed an issue causing Settings to crash when going to Bluetooth & Devices > Printers & Scanners in the last few builds.
Fixed a couple crashes that some Insiders were experiencing in the last few builds when opening the Wi-Fi section of Quick Settings, or after connecting or disconnecting from networks in the Wi-Fi section in Quick Settings.
Fixed an issue that was causing the Wi-Fi option in Quick Settings and the Wi-Fi section in Settings to sometimes take a few seconds to appear.
Using touch to rearrange the items in Quick Settings when in edit mode should no longer lead to Quick Settings unexpectedly dismissing sometimes.
Input:
Added the SOM currency sign (U+20C0) to the Courier New font family.
Task Manager:
Pressing CTRL + Page Up and CTRL + Page Down should work again now to navigate through pages in Task Manager.
Other:
Fixed a rare issue that could lead to certain apps to sporadically crash on launch.
NOTE: Some fixes noted here in Insider Preview builds from the Dev Channel may make their way into the servicing updates for the released version of Windows 11.

New in Microsoft Windows SDK Build 22593 Insider Preview (Apr 6, 2022)

New in Microsoft Windows SDK Build 22581 Insider Preview (Mar 29, 2022)

Taskbar:
The tablet-optimized taskbar feature which began rolling out with Build 22563 is now available to all Windows Insiders in the Dev and Beta Channels. As a reminder, this feature only works on devices that can be used as tablets. It does not work on laptops or desktop PCs.
Several fixes to taskbar such as the top border line now extending across the entire taskbar will be seen for everyone regardless of device type.
Keyboard focus and mouse hover for Win32 system tray icons and the “Show hidden icons” flyout have been updated to match the rest of the visual style of the taskbar. You may also notice that drag-and-drop is no longer supported to pin/unpin these items — you can show/hide these icons using by right clicking on the taskbar and choosing “Taskbar settings”. We also introduced an optional setting to hide the “show hidden icons” button completely, supporting users who want a simpler taskbar.
Settings:
In Build 22557, we introduced new links in Settings to help customers give their PC a second life or recycle it. These links will disappear when upgrading to the latest builds (Build 22581 and higher) and will come back later.
Fixes:
Taskbar:
Made a fix for another issue causing taskbar previews to use the wrong fonts for the window title in languages other than English.
Drag and drop to taskbar should now work with auto-hidden taskbars.
When dragging something to pin to the taskbar, the message on the dragged item (for example, displaying an X if it’s not supported) will now have rounded corners.
Mitigated an issue where swiping to collapse the tablet-optimized taskbar might unexpectedly invoke the widgets board.
Start menu:
Fixed an issue that was sometimes causing the search box in the top of Start to flicker.
Mitigated an underlying issue where if you swiped to open the All apps list, sometimes it would think that you’d tapped one of the letter headers in the All apps list.
Updated the context menu when right clicking a pinned app to say “Move to front” rather than “Move to top”, so it’s clearer what will happen.
Focus:
A Clock app update (version 11.2202.24.0 and higher) has rolled out that fixes the issue where the Clock app was unable to update the Windows Focus state when configuring focus sessions in the Clock app.
File Explorer:
Fixed a few cases where icons were missing next to entries in the context menu and command bar (for example, for the Next Desktop Background entry in the context menu if you right click the desktop while using a background slideshow).
Made some small adjustments to some of the icons used in the context menu and command bar, including the copy icon.
Folders whose only content is other folders will now show an icon with a slip of paper to indicate there is content inside the folder instead of an empty folder icon.
Addressed an underlying issue that could cause File Explorer to crash when using the Group By option.
Input:
Fixed an issue where the conversion option in the Korean IME context menu wasn’t working.
Addressed an issue where the IME toolbar wasn’t showing/hiding correctly if you’d chosen to use the previous version of the Japanese IME.
Improved reliability of showing the touch keyboard on the login screen after tapping the PIN or password field after rebooting or upgrade.
Fixed an issue where some of the text in the touch keyboard was difficult to read when using the “Black and White” text input theme.
Made another fix for the “size and theme” link under Settings > Time & Language > Typing > Touch Keyboard not working.
Mitigated an issue where the touch keyboard was still showing the previous text candidates when you switched to voice typing.
The “Press Enter” and “Press Tab” commands should be working when using voice typing for Chinese (Traditional) now.
Fixed an issue where the 3 or 4 finger touchpad gesture for adjusting your audio volume level wasn’t working with certain paired Bluetooth audio devices.
Settings:
Changes in Sounds to Program Events (for example, turning certain system sounds off) should persist on upgrade going forward.
Improved visibility of the battery icon in the Bluetooth section of Quick Settings when a contrast mode was enabled.
Windowing:
If you set keyboard focus to Desktops in Task View, the border shown around the thumbnails will now have rounded corners.
Fixed an issue where hovering over the Task View icon on secondary monitors wouldn’t bring up the Desktops flyout when using the Arabic or Hebrew display language.
Fixed an issue where if you selected one of the Microsoft Edge tabs displayed in snap assist, the window would animate in from the wrong place.
Snap layouts should now minimize properly if you drag a window through the corner of snap layouts.
Fixed an issue where snap layouts would unexpectedly immediately display while dragging a window instead of just showing a hint for Insiders with an Arabic or Hebrew display language.
Addressed an issue where rotating your tablet before the previous screen rotation animation had finished would cause the rotation animation to abruptly cut out.
Mitigated an issue where using the 3-finger touch gesture to minimize all apps quickly could result in windows getting stuck in a shrunken state.
Reduced the size of the area above a notification where clicks weren’t being passed through to the underlying window so it’s the same sized area as the side of the notification.
Mitigated an issue leading to issues dragging the title bar of a maximized window with touch.
Fixed an issue where if the Open or Save dialog was open in an app, and you used ALT + Tab to switch away from the app and then back, keyboard focus might get lost.
Voice access:
Fixed an issue that was causing voice access to crash when using commands to capitalize text in Office apps.
Narrator:
Narrator will now correctly tell you if there is an image in table cells in Office apps.
When Narrator is reading with scan mode in Microsoft Edge, it will no longer stop reading when getting to some embedded links and buttons in the middle of text, like on nytimes.com.
Task Manager:
Fixed an issue where tooltips did not accurately display the preferred visual setting when Task Manager is configured for dark mode.
Fixed an issue where Task Manager wasn’t populating the details of the Status column in the Startup Apps page.
Other:
Fixed an issue that was causing the volume flyout that appears from using your hardware keys to be stuck on screen.
Mitigated an issue that could result in explorer.exe getting stuck and not fully initializing during first login.
Fixed a few more issues impacting explorer.exe reliability.

New in Microsoft Windows SDK Build 22463 Insider Preview (Sep 22, 2021)

Changes and Improvements:
When you have a file or folder selected in File Explorer, you can now use CTRL + Shift + C to copy the path to your clipboard.
Rounded the corners of the pop-ups shown when clicking “identify displays” in Display Settings.
Made some small adjustments to the contrast theme colors based on feedback, including making hyperlinks a little more distinct on hover when using the desert theme.
Added an icon next to the volume slider in Quick Settings to help make the option for managing audio endpoints more discoverable.
Updated the Windows Ease of Access folder in Start’s All apps list to now simply be called Accessibility.
Added an option to Focus Assist settings so you can choose whether or not you would like Focus Assist to be automatically enabled for the first hour after a Windows feature update.
Fixes:
[Start]
System now shows up again as an option when right-clicking on the Start button (WIN + X).
Fixed an issue that was causing Narrator to not be able to focus on the headers in Start sometimes with touch.
Mitigated an issue where when a large number of apps were installed, the Start menu might get stuck with no app icons showing (only app name) after a DPI change. This change is also believed to help improve Start launch reliability on secondary monitors in mixed DPI scenarios.
If the accessibility option “Always show scrollbars” is enabled, switching to the All apps list will no longer cause the scrollbar to escape the window boundaries during the transition animation.
Pressing the down arrow after opening Start will now navigate into the pinned apps section instead of jumping to your username.
[Taskbar]
Icons on the Taskbar are properly aligned and centered again apps should no longer get cut off by the “show hidden icons” button when too many apps are open.
The Taskbar previews text will now follow the Accessibility setting to increase text size.
Adjusted the notification count badge for notification center to fix an issue where some of the numbers weren’t centered in the circle.
Fixed an issue where the Chat flyout wouldn’t light dismiss the first time it was opened.
Improved explorer.exe reliability when the Taskbar spanned multiple monitors.
[Search]
Opening Search on secondary monitors works now.
[File Explorer]
Mitigated an issue that could cause File Explorer to hang when doing a search.
Pressing F1 in File Explorer will now open a search for Windows 11 help and not Windows 10.
Made a change to address an issue where items under View, Sort by, and Group by submenus in the context menu weren’t displaying a mark to show they were selected.
[Input]
Fixed an issue resulting in the mouse pointer position in WDAG being incorrect when the monitor was in portrait mode.
Text predictions (both for the touch keyboard, and hardware keyboard) should be working again now in this flight for English and certain other languages where it was broken.
Addressed an issue when using the previous version of the Korean IME where when typing quickly in certain apps the Shift Key Up event wouldn’t be received by the app.
Fixed an issue that was making the touch keyboard key borders look blurry in certain cases.
Mitigated an issue where the touch keyboard would crash in certain cases when switching dock mode while the voice typing UI was visible.
[Settings]
Removed duplicate Nearby Sharing entry in Focus Assist priority list.
Fixed an issue that was causing a repeated prompt to reset to default settings when “Automatically optimize new drives” was unselected in Optimize Drives.
If you press WIN + P the current projection mode will now have initial keyboard focus instead of always the first in the list.
[Windowing]
Trying to switch Desktops (for example, using the keyboard shortcuts) when there is only one should no longer steal foreground focus.
Addressed an issue where the snap layouts flyout would start flashing when invoked in certain places on the screen.
Move To option when right clicking a window thumbnail in Task View is now aligned with the other context menu entries.
[Windows Sandbox]
Windows Sandbox should now launch in this build. In previous Dev Channel builds, Windows Sandbox would not launch in some circumstances.
[Windows Subsystem for Linx (WSL) & Hyper-V]
We have fixed the issue causing both WSL2 and Hyper-V to not work on ARM64 PCs such as the Surface Pro X in previous Dev Channel builds.
[Other]
Fixed an issue that caused some PCs to bug check with DRIVER_PNP_WATCHDOG error when attempting to update to a recent build.
Fixed an issue that caused some Surface Pro X’s to bug check with a WHEA_UNCORRECTABLE_ERROR.
Fixed an issue where the Autorun registry entry for Command Prompt would not work if /k was used.
Did some work to address an issue where not being able to parse a certain firewall rule would result in all rules following that one not being migrated on upgrade.
Addressed an issue where the Quick Assist window could be small and not possible to resize.
Fixed an issue for some users where if the sign in button in Quick Assist was clicked, it would open a blank browser window and they wouldn’t be able to proceed to sign in.
Mitigated an issue with certain menus / context menus that was causing a visual glitch with the shadow on first launch.
Mitigated a race condition that was causing certain PCs to sometimes bugcheck with INTERNAL_POWER_ERROR when resuming from hibernation.
Fixed an issue that was making some PCs unable to progress past the boot screen when upgrading to 224xx builds with certain SSDs attached.

New in Microsoft Windows SDK Build 22458 Insider Preview (Sep 17, 2021)

Changes and Improvements:
We added a link to the sign-in options under the power menu on Start. (Note: this change first appeared in Build 22454 last week but we’re documenting it here this week as it was missed.)
[ADDED 9/16] This build includes a change that aligns the enforcement of the Windows 11 system requirements on Virtual Machines (VMs) to be the same as it is for physical PCs. Previously created VMs running Insider Preview builds may not update to the latest preview builds. In Hyper-V, VMs need to be created as a Generation 2 VM. Running Windows 11 in VMs in other virtualization products from vendors such as VMware and Oracle will continue to work as long as the hardware requirements are met. For more details on the Windows 11 system requirements – see this blog post here.
Fixes:
[Start]
Fixed an underlying issue that was impacting Start reliability.
[Search]
Folders with # in folder name can now be added to indexing.
[Settings]
Addressed an issue that was causing Settings to crash sometimes when trying to open the Display page.
Clicking “More about refresh rate” in Advanced Display Settings now opens the support page it’s supposed to.
Fixed an issue where the Location page in Settings wasn’t showing warning text explaining why the location services setting was greyed out if it was greyed out.
Changes made to preferences under Manage App Execution Alias in Settings should now be preserved.
Fixed a couple typos in the output of dll (Issue #206).
[Windowing]
Mitigated an issue that could make certain games unexpectedly crash when using ALT + Enter (i.e., switch between full screen and windowed) during with Auto HDR enabled.
[Other]
Addressed an issue that was causing text truncation in the Encrypting File System window in certain cases.
Fixed a rare scenario that could result in an uninstalled in-box app unexpectedly reappearing after reboot.
Appx commandlets should now work with PowerShell 7.0+ printui.dll (Issue #13138).
NOTE:
Some fixes noted here in Insider Preview builds from the active development branch may make their way into the servicing updates for the released version of Windows 11 after general availability on October 5th.
Known issues
[General]
We’re working on a fix for an issue that is causing some Surface Pro X’s to bug check with a WHEA_UNCORRECTABLE_ERROR.
We’re working on a fix for an issue that is causing some devices to bug check with DRIVER_PNP_WATCHDOG error when attempting to update to a recent build.
[Start]
In some cases, you might be unable to enter text when using Search from Start or the Taskbar. If you experience the issue, press WIN + R on the keyboard to launch the Run dialog box, then close it.
System is missing when right-clicking on the Start button (WIN + X).
[Taskbar]
IMPORTANT: Icons on the Taskbar are shifted to the side when in the default center alignment, resulting in them getting cut off by the “show hidden icons” button when too many apps are open.
The Taskbar will sometimes flicker when switching input methods.
[Search]
After clicking the Search icon on the Taskbar, the Search panel may not open. If this occurs, restart the “Windows Explorer” process, and open the search panel again.
Search panel might appear as black and not display any content below the search box.
[File Explorer]
If you right click files in OneDrive locations in File Explorer, the context menu will unexpectedly dismiss when you hover over entries that open sub-menus, such as “Open with.”
[Widgets]
The widgets board may appear empty. To work around the issue, you can sign out and then sign back in again.
Widgets may be displayed in the wrong size on external monitors. If you encounter this, you can launch the widgets via touch or WIN + W shortcut on your actual PC display first and then launch on your secondary monitors.
[Windows Sandbox]
We’re investigating an issue in which Windows Sandbox may not launch for some Insiders after upgrading to this build.
[Microsoft Store]
We continue to work to improve search relevance in the Store.
[Windows Subsystem for Linux (WSL) & Hyper-V]
We’re investigating reports of both WSL2 and Hyper-V not working on this build on ARM64 PCs such as the Surface Pro X.

New in Microsoft Windows SDK Build 20241 Insider Preview (Oct 21, 2020)

Changes and Improvements:
To help ensure Narrator users are aware of notifications on the screen, if a high priority notification appears while the computer is locked and stays on the screen, we will now also read it out when unlocking your PC and not just at arrival time.
We’re removing the Japanese Address and Rinna candidate suggestion services from the Japanese IME – thank you Windows Insiders who’ve shared feedback on them.
Fixes:
We fixed an issue resulting in some Insiders experiencing APC_INDEX_MISMATCH bugchecks in recent builds.
We fixed an issue where scrolling and pinch to zoom were not working correctly on devices with touch such as the Surface Pro X, Surface Pro 7 and others.
We fixed an issue where selecting an IME candidate or hardware keyboard text prediction candidate was sometimes inserting the candidate adjacent to the one selected.
We fixed an issue where new applications will fail to install with a Windows Installer service error on x86 systems.
We fixed an issue where when attempting to perform a Reset this PC using the Keep My Files option will fail with the error, “There was a problem resetting your PC. No changes were made”.
We fixed an issue where robocopy wouldn’t preserve the directory dates when using the move command.
We fixed a high hitting dwm.exe crash from the last few flights.
We fixed an issue resulting in the System Information window (msinfo32) crashing on launch.
We fixed an issue resulting in the System Information window (msinfo32) unexpectedly having a blank icon in the taskbar.
We fixed an issue that could result in Bitlocker encryption failing with error 0x803100b2.
We fixed an issue resulting in flickering in certain apps when the media controls pop-up was visible on screen and you moved your mouse.
We fixed an issue resulting in the screen flickering on certain devices when accessing the power options on the login screen.
We fixed a recent issue where closing a tab in Microsoft Edge while Task Manager was up and running could result in Task Manager crashing.
We fixed an issue resulting in some Insiders seeing a “Sorry, something went wrong” message when running through the workflow to improve recognition for Windows Hello Face.
We fixed an issue from recent builds where if Settings was open when the PC went into hibernation, connected pens may fail to reconnect until Bluetooth was toggled off and back on.
We fixed an issue that could result in Windows Sandbox showing a 0x80070003 error.
We fixed an issue where a non-functional link to Rename your PC was displaying for non-admin users on the Projecting to this PC page in Settings.
We fixed an issue where the Activation page in Settings would crash if you navigated to it recently while not connected to the internet.
We fixed an issue in Printers & Scanners Settings, where clicking the Get App button available for some printers was resulting in Settings crashing recently.
We fixed an issue where clicking the Copy button under “View hardware and connection properties” in Network Settings would result in extraneous lines saying “Proxy Auto Detect” appearing on the settings page.
We fixed an issue impacting certain VPN connections, where clicking the entry in the Network flyout wasn’t doing anything.
We fixed an issue that could result in Windows updates failing with error 0xc0000005.
We fixed an issue that could result in windows.old being unexpectedly large for some Insiders.
We fixed an issue resulting in the new gesture to control the text cursor position using the spacebar on the touch keyboard wasn’t working for some Insiders.
We fixed an issue that could result in Internet Explorer crashing when typing certain combinations into websites with the Dayi IME.
We fixed an issue where incorrect characters were being inserted into passwords fields when typing using the Japanese IME in Kana mode.
We fixed an issue where when using the previous version of the Japanese IME, if you set the IME to off mode during a composition, then immediately starting typing, it could result in the underlying app crashing.

New in Microsoft Windows SDK Build 20236 Insider Preview (Oct 15, 2020)

Change Refresh Rate of your display:
You can now go to Settings > System > Display > Advanced display settings and change the refresh rate of your selected display. A higher refresh rate allows for smoother motion. The presented refresh rates can vary with the supported hardware on your device.
Other updates for Insiders:
Improving your search experience:
We’re rolling out a change to display some of your recent searches when you open Windows Search Box, to make them easy to get back to. This change is rolling out server-side to everyone on version 1809 and higher:
The recent list shows the last four items that you’ve searched for and opened from Windows Search Box, which can include apps, files, settings, and direct-nav URLs (for example, like “bing.com”).
You can remove individual items in this list by clicking the “x” that shows when you hover your mouse over the items.
You can disable the Recent feature by turning off the Windows setting “Search history on this device” under Settings > Search > Permissions and History.
If you’ve not used Windows Search Box before and have 0 recent items, the recent list will be hidden.
If you don’t use Windows Search Box often and have fewer than 2 items in the recent list, an educational string will display in the area to let you know what types of items will appear in the list.
This change is rolling out server-side to everyone on version 1903 and higher.
Updates for developers:
The Windows SDK is now flighting continuously with the Dev Channel. Whenever a new OS build is flighted to the Dev Channel, the corresponding SDK will also be flighted. You can always install the latest Insider SDK from aka.ms/InsiderSDK. SDK flights will be archived in Flight Hub along with OS flights.
Changes and Improvements:
To improve accessibility of PDFs for Narrator and other screen reader users, in the cases where Unicode is not provided by the printing application, we’re updating our Microsoft Print to PDF option to make an attempt to convert the provided font glyphs to Unicode.
Fixes:
We’ve fixed an issue where after taking recent builds some Insiders received an unexpected Compatibility Assistant notification that “Microsoft Office is no longer available”.
We’ve fixed an issue where some Office applications were crashing or missing after updating to a new build.
We fixed an issue that could result in the same app update installing repeatedly on the previous build.
We’ve fixed an issue where some devices are experiencing a DPC_WATCHDOG_VIOLATION bugcheck
We fixed an issue resulting in some Insiders experiencing an UNHANDLED_EXCEPTION in dxgkrnl.sys bugcheck in the last few builds.
We fixed an issue that could result in a 0x800F0247 error when installing driver updates.
We fixed an issue that could result in sihost.exe crashing when trying to share an app via the Share option when right clicking a tile in Start.
We fixed an issue where if “Animate controls and elements inside windows” was turned off in Performance Options, dragging a tile to another tile group in Start would result in the dragged tile no longer responding to mouse click.
We fixed an issue resulting in Narrator sometimes reading out an incorrect number of nodes in File Explorer’s navigation pane (for example, saying 1 of 2 items, instead of 1 of 4 items).
We fixed an issue that could result in the icon next to “Scan with Microsoft Defender” (when right clicking a file in File Explorer) being very small or large.
We fixed an issue where the icon next to “Scan with Microsoft Defender” when right clicking a file wasn’t updating to reflect high contrast when high contrast was enabled.
We fixed an issue that could result in File Explorer crashing when renaming a file.
We fixed an issue from recent builds resulting in clicking on items in Timeline not launching the corresponding app.
We fixed an issue from recent builds impacting certain apps with search boxes, where the search box would disappear when scrolling the app even if it was supposed to stay visible.
We fixed an issue resulting in intermittent connectivity loss when connecting to a PC via remote desktop connection, as a result of the connected PC attempting to sleep.
We fixed an issue where when using the windns.h API to discover services on the local network, the TTL value of the discovered service wasn’t used – instead using the default value of 120 seconds.
]We fixed an issue where the “Listen to this device” checkbox state in microphone properties wasn’t persisted on upgrade and would revert to default.
We fixed an issue where adjusting volume also muted/unmuted when “App volume and device preferences” was open.
We fixed an issue that could result in the Network & Internet Settings Status page sometimes unexpectedly not showing all current connections.
We fixed an issue that could result in your cursor disappearing when typing into Command Prompt with a Chinese IME active.
We fixed an issue that could result in the touch keyboard sometimes not making any sounds while typing even though the setting to have sound while typing was enabled.
We fixed an issue where the French AZERTY touch keyboard layout was French keyboard is missing number hint labels on the A/Z keys, and the Select All/Undo labels were at the top instead of bottom.
We fixed an issue where the child keys on the Japanese 12-key touch keyboard layout weren’t following the updated key design.
We fixed an issue where Narrator was unexpectedly saying “Expressive Input Panel” when you touched a text candidate in the touch keyboard.
We fixed an issue that could result in the touch keyboard getting stuck in a suspended state after waking a PC from sleep, leading to it not invoking automatically when setting focus to a text field.
We fixed an issue with the updated touch keyboard design where when using Arabic the clipboard icon would appear on the wrong side of the copied text in the candidate bar.
We fixed an issue with the Thai touch keyboard layout, where the shift-state characters were placed in inconsistent locations on the keys.
We fixed an issue where when using the updated Emoji Panel design, Narrator wasn’t reading the category names in the Most Recently Used section.
We fixed an issue with the Emoji Panel when using Narrator, where after inserting an emoji, Narrator would then stay silent on navigating further to other emoji.
We fixed an issue where it wasn’t possible to use the arrow keys to navigate through the gif section of the Emoji Panel.
We fixed some contrast issues in the updated Emoji Panel and touch keyboard expressive input area when using high contrast.
We fixed an issue that could result in the Voice Typing settings menu drawing off screen.
We fixed a regression that was breaking NVIDIA CUDA vGPU acceleration in the Windows Subsystem for Linux. Please see this GitHub thread for full details.

New in Microsoft Windows SDK Build 20211 Insider Preview (Sep 10, 2020)

Adding Search to the Default Apps pages in Settings:
After making some updates to help improve performance, this change to enable searching the lists of file types, protocols, and apps when setting a default is now rolling out to all Insiders in the Dev Channel – thanks everyone who’s shared feedback along the way.
Access Linux file systems in the Windows Subsystem for Linux:
This latest insiders preview build adds the ability for users to attach and mount a physical disk inside of a WSL 2 distro. This enables you to access file systems that aren’t natively supported by Windows (such as ext4). So if you’re dual booting with Windows and Linux, and are using different disks, you can now access your Linux files from Windows! To learn more about this feature please read this blog post on the Windows Command Line blog.
Updates for developers:
The Windows SDK is now flighting continuously with the Dev Channel. Whenever a new OS build is flighted to the Dev Channel, the corresponding SDK will also be flighted. You can always install the latest Insider SDK from aka.ms/InsiderSDK. SDK flights will be archived in Flight Hub along with OS flights.
Fixes:
Fixed an issue where certain 32-bit applications running on a 64-bit OS do not get properly promoted to the discrete GPU for hybrid configurations.
We fixed an issue that could result in Start menu tiles continuing to display an “app update in progress” progress bar after an app had already finished updating.
We fixed an issue that could result in some of the app icons in Start appearing unexpectedly tiny.
We fixed an issue on ARM64 devices resulting in Start crashing on launch the next time it was opened after launching certain apps from Start and then closing them.
We fixed an issue that could result in the lock screen hanging.
We fixed an issue that could result in ShellExperienceHost.exe hanging.
We fixed an issue where hero images weren’t showing up in notifications (for example, when taking a screenshot using WIN + Shift + S).
We fixed an issue from the last few flights that could result in Windows update getting stuck while downloading the update.
[ADDED] You will no longer get asked to reinstall a .NET update after each flight.
Known issues:
We’re looking into reports of the update process hanging for extended periods of time when attempting to install a new build.
We’re working on a fix to enable live preview for pinned site tabs.
We’re working on enabling the new taskbar experience for existing pinned sites. In the meantime, you can unpin the site from the taskbar, remove it from the edge://apps page, and then re-pin the site.
We’re investigating reports of some Office applications crashing or missing after updating to a new build.
We’re working on a fix for an issue resulting in Settings crashing for some Insiders when opening Manage Disks and Volumes.
We’re working on a fix for the Linux kernel not being installed when using the `wsl –install` command in the Windows Subsystem for Linux. For an immediate workaround run `wsl –update` to get the latest kernel version.
We are investigating an issue affecting Windows Subsystem for Linux 2 distros where users can receive the error: “The remote procedure call failed” on startup.
We’re working on an issue where on a small subset of devices the Start menu does not reflect when an update is pending restart and scheduled restarts are cancelled. To install the next update, you will need to update and restart through the Windows Update settings page, notification area (system tray) icon, or restart notification.
We’re investigating reports of some devices experiencing a KMODE_EXCEPTION bugcheck when using certain virtualization technologies.
We’re investigating a bug where the vEthernet adapter in Windows Subsystem for Linux 2 distros becomes disconnected after a period of use. For full details please follow this Github thread.
We’re working on a fix for seeing generic errors when using `wsl –install` in the Windows Subsystem for Linux.

New in Microsoft Windows SDK 10.0.17763.0 (Jan 17, 2020)

New in Microsoft Windows SDK Build 18999 Insider Preview (Oct 15, 2019)

This build works in conjunction with previously released SDKs and Visual Studio 2017 and 2019. You can install this SDK and still also continue to submit your apps that target Windows 10 build 1903 or earlier to the Microsoft Store.
The Windows SDK will now formally only be supported by Visual Studio 2017 and greater. You can download the Visual Studio 2019 here.
This build of the Windows SDK will install on only on Windows 10 Insider Preview builds.
In order to assist with script access to the SDK, the ISO will also be able to be accessed through the following static URL: https://software-download.microsoft.com/download/sg/Windows_InsiderPreview_SDK_en-us_18999_1.iso.
Tools Updates:
Message Compiler (mc.exe)
Now detects the Unicode byte order mark (BOM) in .mc files. If the If the .mc file starts with a UTF-8 BOM, it will be read as a UTF-8 file. Otherwise, if it starts with a UTF-16LE BOM, it will be read as a UTF-16LE file. If the -u parameter was specified, it will be read as a UTF-16LE file. Otherwise, it will be read using the current code page (CP_ACP).
Now avoids one-definition-rule (ODR) problems in MC-generated C/C++ ETW helpers caused by conflicting configuration macros (e.g. when two .cpp files with conflicting definitions of MCGEN_EVENTWRITETRANSFER are linked into the same binary, the MC-generated ETW helpers will now respect the definition of MCGEN_EVENTWRITETRANSFER in each .cpp file instead of arbitrarily picking one or the other).
Windows Trace Preprocessor (tracewpp.exe)
Now supports Unicode input (.ini, .tpl, and source code) files. Input files starting with a UTF-8 or UTF-16 byte order mark (BOM) will be read as Unicode. Input files that do not start with a BOM will be read using the current code page (CP_ACP). For backwards-compatibility, if the -UnicodeIgnore command-line parameter is specified, files starting with a UTF-16 BOM will be treated as empty.
Now supports Unicode output (.tmh) files. By default, output files will be encoded using the current code page (CP_ACP). Use command-line parameters -cp:UTF-8 or -cp:UTF-16 to generate Unicode output files.
Behavior change: tracewpp now converts all input text to Unicode, performs processing in Unicode, and converts output text to the specified output encoding. Earlier versions of tracewpp avoided Unicode conversions and performed text processing assuming a single-byte character set. This may lead to behavior changes in cases where the input files do not conform to the current code page. In cases where this is a problem, consider converting the input files to UTF-8 (with BOM) and/or using the -cp:UTF-8 command-line parameter to avoid encoding ambiguity.
TraceLoggingProvider.h
Now avoids one-definition-rule (ODR) problems caused by conflicting configuration macros (e.g. when two .cpp files with conflicting definitions of TLG_EVENT_WRITE_TRANSFER are linked into the same binary, the TraceLoggingProvider.h helpers will now respect the definition of TLG_EVENT_WRITE_TRANSFER in each .cpp file instead of arbitrarily picking one or the other).
In C++ code, the TraceLoggingWrite macro has been updated to enable better code sharing between similar events using variadic templates.
Signing your apps with Device Guard Signing
We are making it easier for you to sign your app. Device Guard signing is a Device Guard feature that is available in Microsoft Store for Business and Education. Signing allows enterprises to guarantee every app comes from a trusted source. Our goal is to make signing your MSIX package easier. Documentation on Device Guard Signing can be found here: https://docs.microsoft.com/windows/msix/package/signing-package-device-guard-signing
Breaking Changes:
Removal of api-ms-win-net-isolation-l1-1-0.lib
In this release api-ms-win-net-isolation-l1-1-0.lib has been removed from the Windows SDK. Apps that were linking against api-ms-win-net-isolation-l1-1-0.lib can switch to OneCoreUAP.lib as a replacement.
Removal of IRPROPS.LIB
In this release irprops.lib has been removed from the Windows SDK. Apps that were linking against irprops.lib can switch to bthprops.lib as a drop-in replacement.
Removal of WUAPICommon.H and WUAPICommon.IDL
In this release we have moved ENUM tagServerSelection from WUAPICommon.H to wupai.h and removed the header. If you would like to use the ENUM tagServerSelection, you will need to include wuapi.h or wuapi.idl.

New in Microsoft Windows SDK Build 18950 Insider Preview (Aug 6, 2019)

Message Compiler (mc.exe):
Now detects the Unicode byte order mark (BOM) in .mc files. If the If the .mc file starts with a UTF-8 BOM, it will be read as a UTF-8 file. Otherwise, if it starts with a UTF-16LE BOM, it will be read as a UTF-16LE file. If the -u parameter was specified, it will be read as a UTF-16LE file. Otherwise, it will be read using the current code page (CP_ACP).
Now avoids one-definition-rule (ODR) problems in MC-generated C/C++ ETW helpers caused by conflicting configuration macros (e.g. when two .cpp files with conflicting definitions of MCGEN_EVENTWRITETRANSFER are linked into the same binary, the MC-generated ETW helpers will now respect the definition of MCGEN_EVENTWRITETRANSFER in each .cpp file instead of arbitrarily picking one or the other).
Windows Trace Preprocessor (tracewpp.exe):
Now supports Unicode input (.ini, .tpl, and source code) files. Input files starting with a UTF-8 or UTF-16 byte order mark (BOM) will be read as Unicode. Input files that do not start with a BOM will be read using the current code page (CP_ACP). For backwards-compatibility, if the -UnicodeIgnore command-line parameter is specified, files starting with a UTF-16 BOM will be treated as empty.
Now supports Unicode output (.tmh) files. By default, output files will be encoded using the current code page (CP_ACP). Use command-line parameters -cp:UTF-8 or -cp:UTF-16 to generate Unicode output files.
Behavior change: tracewpp now converts all input text to Unicode, performs processing in Unicode, and converts output text to the specified output encoding. Earlier versions of tracewpp avoided Unicode conversions and performed text processing assuming a single-byte character set. This may lead to behavior changes in cases where the input files do not conform to the current code page. In cases where this is a problem, consider converting the input files to UTF-8 (with BOM) and/or using the -cp:UTF-8 command-line parameter to avoid encoding ambiguity.
TraceLoggingProvider.h:
Now avoids one-definition-rule (ODR) problems caused by conflicting configuration macros (e.g. when two .cpp files with conflicting definitions of TLG_EVENT_WRITE_TRANSFER are linked into the same binary, the TraceLoggingProvider.h helpers will now respect the definition of TLG_EVENT_WRITE_TRANSFER in each .cpp file instead of arbitrarily picking one or the other).
In C++ code, the TraceLoggingWrite macro has been updated to enable better code sharing between similar events using variadic templates.
Signing your apps with Device Guard Signing:
We are making it easier for you to sign your app. Device Guard signing is a Device Guard feature that is available in Microsoft Store for Business and Education. Signing allows enterprises to guarantee every app comes from a trusted source. Our goal is to make signing your MSIX package easier. Documentation on Device Guard Signing can be found here: https://docs.microsoft.com/windows/msix/package/signing-package-device-guard-signing
Breaking Changes:
Removal of IRPROPS.LIB:
In this release irprops.lib has been removed from the Windows SDK. Apps that were linking against irprops.lib can switch to bthprops.lib as a drop-in replacement.

New in Microsoft Windows SDK Build 18922 Insider Preview (Jun 26, 2019)

Things to note:
This build works in conjunction with previously released SDKs and Visual Studio 2017 and 2019. You can install this SDK and still also continue to submit your apps that target Windows 10 build 1903 or earlier to the Microsoft Store.
The Windows SDK will now formally only be supported by Visual Studio 2017 and greater. You can download the Visual Studio 2019 here.
This build of the Windows SDK will install on Windows 10 Insider Preview builds and previously released builds of Windows.
In order to assist with script access to the SDK, the ISO will also be able to be accessed through the following static URLhttps://software-download.microsoft.com/download/sg/Windows_InsiderPreview_SDK_en-us_18922_1.iso.
Tools Updates:
Message Compiler (mc.exe):
Now detects the Unicode byte order mark (BOM) in .mc files. If the If the .mc file starts with a UTF-8 BOM, it will be read as a UTF-8 file. Otherwise, if it starts with a UTF-16LE BOM, it will be read as a UTF-16LE file. If the -u parameter was specified, it will be read as a UTF-16LE file. Otherwise, it will be read using the current code page (CP_ACP).
Now avoids one-definition-rule (ODR) problems in MC-generated C/C++ ETW helpers caused by conflicting configuration macros (e.g. when two .cpp files with conflicting definitions of MCGEN_EVENTWRITETRANSFER are linked into the same binary, the MC-generated ETW helpers will now respect the definition of MCGEN_EVENTWRITETRANSFER in each .cpp file instead of arbitrarily picking one or the other).
Windows Trace Preprocessor (tracewpp.exe):
Now supports Unicode input (.ini, .tpl, and source code) files. Input files starting with a UTF-8 or UTF-16 byte order mark (BOM) will be read as Unicode. Input files that do not start with a BOM will be read using the current code page (CP_ACP). For backwards-compatibility, if the -UnicodeIgnore command-line parameter is specified, files starting with a UTF-16 BOM will be treated as empty.
Now supports Unicode output (.tmh) files. By default, output files will be encoded using the current code page (CP_ACP). Use command-line parameters -cp:UTF-8 or -cp:UTF-16 to generate Unicode output files.
Behavior changetracewpp now converts all input text to Unicode, performs processing in Unicode, and converts output text to the specified output encoding. Earlier versions of tracewpp avoided Unicode conversions and performed text processing assuming a single-byte character set. This may lead to behavior changes in cases where the input files do not conform to the current code page. In cases where this is a problem, consider converting the input files to UTF-8 (with BOM) and/or using the -cp:UTF-8 command-line parameter to avoid encoding ambiguity.
TraceLoggingProvider.h:
Now avoids one-definition-rule (ODR) problems caused by conflicting configuration macros (e.g. when two .cpp files with conflicting definitions of TLG_EVENT_WRITE_TRANSFER are linked into the same binary, the TraceLoggingProvider.h helpers will now respect the definition of TLG_EVENT_WRITE_TRANSFER in each .cpp file instead of arbitrarily picking one or the other).
In C++ code, the TraceLoggingWrite macro has been updated to enable better code sharing between similar events using variadic templates.
Breaking Changes:
Removal of IRPROPS.LIB:
In this release irprops.lib has been removed from the Windows SDK. Apps that were linking against irprops.lib can switch to bthprops.lib as a drop-in replacement.
API Updates, Additions and Removals:
The following APIs have been added to the platform since the release of Windows 10 SDK, version 1903, build 18362.

New in Microsoft Windows SDK Build 18362 Insider Preview (Apr 3, 2019)

Things to note:
This build works in conjunction with previously released SDKs and Visual Studio 2017. You can install this SDK and still also continue to submit your apps that target Windows 10 build 1809 or earlier to the Microsoft Store.
The Windows SDK will now formally only be supported by Visual Studio 2017 and greater. You can download the Visual Studio 2017 here.
This build of the Windows SDK will install on Windows 10 Insider Preview builds and supported Windows operating systems.
In order to assist with script access to the SDK, the ISO will also be able to be accessed through the following URL: https://go.microsoft.com/fwlink/?prd=11966&pver=1.0&plcid=0x409&clcid=0x409&ar=Flight&sar=Sdsurl&o1=18362 once the static URL is published.
Tools Updates:
Message Compiler (mc.exe):
The “-mof” switch (to generate XP-compatible ETW helpers) is considered to be deprecated and will be removed in a future version of mc.exe. Removing this switch will cause the generated ETW helpers to expect Vista or later.
The “-A” switch (to generate .BIN files using ANSI encoding instead of Unicode) is considered to be deprecated and will be removed in a future version of mc.exe. Removing this switch will cause the generated .BIN files to use Unicode string encoding.
The behavior of the “-A” switch has changed. Prior to Windows 1607 Anniversary Update SDK, when using the -A switch, BIN files were encoded using the build system’s ANSI code page. In the Windows 1607 Anniversary Update SDK, mc.exe’s behavior was inadvertently changed to encode BIN files using the build system’s OEM code page. In the 19H1 SDK, mc.exe’s previous behavior has been restored and it now encodes BIN files using the build system’s ANSI code page. Note that the -A switch is deprecated, as ANSI-encoded BIN files do not provide a consistent user experience in multi-lingual systems.
Breaking Changes:
IAppxPackageReader2 has been removed from appxpackaging.h:
The interface IAppxPackageReader2 was removed from appxpackaging.h. Eliminate the use of use of IAppxPackageReader2 or use IAppxPackageReader instead.
Change to effect graph of the AcrylicBrush:
In this Preview SDK, we’ll be adding a blend mode to the effect graph of the AcrylicBrush called Luminosity. This blend mode will ensure that shadows do not appear behind acrylic surfaces without a cutout. We will also be exposing a LuminosityBlendOpacity API available for tweaking that allows for more AcrylicBrush customization.
By default, for those that have not specified any LuminosityBlendOpacity on their AcrylicBrushes, we have implemented some logic to ensure that the Acrylic will look as similar as it can to current 1809 acrylics. Please note that we will be updating our default brushes to account for this recipe change.
TraceLoggingProvider.h / TraceLoggingWrite:
Events generated by TraceLoggingProvider.h (e.g. via TraceLoggingWrite macros) will now always have Id and Version set to 0.
Previously, TraceLoggingProvider.h would assign IDs to events at link time. These IDs were unique within a DLL or EXE, but changed from build to build and from module to module.
API Updates, Additions and Removals

New in Microsoft Windows SDK Build 18361 Insider Preview (Mar 29, 2019)

TOOLS UPDATES:
Message Compiler (mc.exe):
The “-mof” switch (to generate XP-compatible ETW helpers) is considered to be deprecated and will be removed in a future version of mc.exe. Removing this switch will cause the generated ETW helpers to expect Vista or later.
The “-A” switch (to generate .BIN files using ANSI encoding instead of Unicode) is considered to be deprecated and will be removed in a future version of mc.exe. Removing this switch will cause the generated .BIN files to use Unicode string encoding.
The behavior of the “-A” switch has changed. Prior to Windows 1607 Anniversary Update SDK, when using the -A switch, BIN files were encoded using the build system’s ANSI code page. In the Windows 1607 Anniversary Update SDK, mc.exe’s behavior was inadvertently changed to encode BIN files using the build system’s OEM code page. In the 19H1 SDK, mc.exe’s previous behavior has been restored and it now encodes BIN files using the build system’s ANSI code page. Note that the -A switch is deprecated, as ANSI-encoded BIN files do not provide a consistent user experience in multi-lingual systems.
BREAKING CHANGES:
IAppxPackageReader2 has been removed from appxpackaging.h:
The interface IAppxPackageReader2 was removed from appxpackaging.h. Eliminate the use of use of IAppxPackageReader2 or use IAppxPackageReader instead.
Change to effect graph of the AcrylicBrush:
In this Preview SDK, we’ll be adding a blend mode to the effect graph of the AcrylicBrush called Luminosity. This blend mode will ensure that shadows do not appear behind acrylic surfaces without a cutout. We will also be exposing a LuminosityBlendOpacity API available for tweaking that allows for more AcrylicBrush customization. By default, for those that have not specified any LuminosityBlendOpacity on their AcrylicBrushes, we have implemented some logic to ensure that the Acrylic will look as similar as it can to current 1809 acrylics. Please note that we will be updating our default brushes to account for this recipe change.
TraceLoggingProvider.h / TraceLoggingWrite:
Events generated by TraceLoggingProvider.h (e.g. via TraceLoggingWrite macros) will now always have Id and Version set to 0. Previously, TraceLoggingProvider.h would assign IDs to events at link time. These IDs were unique within a DLL or EXE, but changed from build to build and from module to module.
API Updates, Additions and Removals

New in Microsoft Windows SDK Build 18356 Insider Preview (Mar 20, 2019)

Tools Updates:
Message Compiler (mc.exe):
The “-mof” switch (to generate XP-compatible ETW helpers) is considered to be deprecated and will be removed in a future version of mc.exe. Removing this switch will cause the generated ETW helpers to expect Vista or later.
The “-A” switch (to generate .BIN files using ANSI encoding instead of Unicode) is considered to be deprecated and will be removed in a future version of mc.exe. Removing this switch will cause the generated .BIN files to use Unicode string encoding.
The behavior of the “-A” switch has changed. Prior to Windows 1607 Anniversary Update SDK, when using the -A switch, BIN files were encoded using the build system’s ANSI code page. In the Windows 1607 Anniversary Update SDK, mc.exe’s behavior was inadvertently changed to encode BIN files using the build system’s OEM code page. In the 19H1 SDK, mc.exe’s previous behavior has been restored and it now encodes BIN files using the build system’s ANSI code page. Note that the -A switch is deprecated, as ANSI-encoded BIN files do not provide a consistent user experience in multi-lingual systems.
Breaking Changes:
IAppxPackageReader2 has been removed from appxpackaging.h:
The interface IAppxPackageReader2 was removed from appxpackaging.h. Eliminate the use of use of IAppxPackageReader2 or use IAppxPackageReader instead.
Change to effect graph of the AcrylicBrush:
In this Preview SDK we’ll be adding a blend mode to the effect graph of the AcrylicBrush called Luminosity. This blend mode will ensure that shadows do not appear behind acrylic surfaces without a cutout. We will also be exposing a LuminosityBlendOpacity API available for tweaking that allows for more AcrylicBrush customization.
By default, for those that have not specified any LuminosityBlendOpacity on their AcrylicBrushes, we have implemented some logic to ensure that the Acrylic will look as similar as it can to current 1809 acrylics. Please note that we will be updating our default brushes to account for this recipe change.
TraceLoggingProvider.h / TraceLoggingWrite
Events generated by TraceLoggingProvider.h (e.g. via TraceLoggingWrite macros) will now always have Id and Version set to 0.
Previously, TraceLoggingProvider.h would assign IDs to events at link time. These IDs were unique within a DLL or EXE, but changed from build to build and from module to module.
API Updates, Additions and Removals

New in Microsoft Windows SDK Build 18342 Insider Preview (Feb 27, 2019)

General changes, improvements, and fixes for PC
The new tamper protection setting in the Windows Security app protects your device by helping to prevent bad actors from tampering with the most important security settings. The setting is now on by default for Insider Preview builds.
We fixed an issue where Windows Sandbox would not start on localized builds.
We’ve done some work to improve error reporting in Windows Sandbox. Now the error dialog includes the error code and a link to the Feedback Hub.
We fixed an issue where Windows Sandbox was unexpectedly throwing an error due to referencing a deleted file under Windows.old.
Windows Sandbox now captures hotkeys in full screen.
Windows Sandbox now supports configuration files! These files allow users to configure some aspects of the sandbox, such as vGPU, networking and shared folders. A blog post to explain this new feature will be available here.
We improved the capabilities of the wsl.exe command line interface, by adding new features such as importing and exporting distros and consolidating existing features from wslconfig.exe, such as listing distros and setting defaults.
We fixed an issue where if the Magnifier was enabled and set to docked mode, machine would crash and reboot on sign-in creating a boot loop.
We fixed an issue resulting in build unable to log into WinRE with an admin account in the last couple of flights.
We fixed an issue where if you unpinned groups from Start, apps might end up thinking their tiles were still pinned.
We fixed an issue resulting in being unable to re-arrange pinned folders in Start’s tile grid.
We fixed an issue where the text explaining the Downloads section of Storage Sense had unexpected characters in it.
We fixed an issue where Settings would sometimes crash when opening “Advanced Display Settings” from Display Settings.
We fixed an issue where after changing an app’s audio endpoint, it might no longer follow master volume changes.
We fixed an issue where it wasn’t possible to add a drive to the list of folders to exclude when setting up Enhanced Search in Settings.
We fixed an issue with the Settings header at certain window sizes where long names might be truncated in the middle, rather than wrapping properly.
We fixed an issue from the previous flight where right-clicking the desktop would bring up a light colored context menu in dark theme.
We fixed an issue impacting Emoji Panel and Clipboard History reliability.
We’ve made another fix to address reports of devices getting stuck with “Hibernating…” text on the screen on resume from hibernate.
We fixed an issue that could cause Windows logon to forget the last logged on user, and instead would display the sign-in prompt for the default user from the list after dismissing the lock screen.
We fixed an issue where an issue where some of the Real-Time Protection options for Malwarebytes Premium are not able to be turned on.
We fixed an issue resulting in Internet Explorer’s menu bar not always appearing if enabled.
We fixed an issue resulting in CDPUserSVC using an unexpectedly large amount of CPU for prolonged periods of time.
We fixed an issue resulting in DWM crashing frequently for some Insiders on the previous flight.
We fixed an issue resulting in certain games recently going into a black screen/not responding state if their resolution was lower than 1920*1080 and the game entered fullscreen.
We fixed an issue resulting in certain games no longer rendering UI updates (appearing visually stuck) after using Alt + Tab to quickly switch away and back to the game.
We fixed an issue resulting in significant video and audio lag when projecting videos from certain devices on recent builds.
We fixed an issue where turning off Location from the Action Center might take multiple clicks to react.
We fixed an issue resulting in single Unicode character insertion failing for IMEs, the touch keyboard, and the Emoji Panel in certain types of edit controls recently.
We fixed an issue resulting in the left and right arrows on the touch keyboard inserting 4 and 6, respectively, in certain languages.
We fixed an issue where newly installed apps might not show up in search results.
We fixed an issue resulting in the Search pane becoming truncated if launched after rotating the device orientation from horizontal to vertical.
We fixed a high impact issue resulting in a decrease in Start reliability in the last couple of flights.
We fixed a recent issue where if you hid the search icon in the taskbar, a number of win32 apps would unexpectedly redraw when opening the Start menu.
We fixed an issue that could result in unexpected flickering if you used pen or touch in certain win32 apps to launch a second instance of the app when in tablet mode.
Have a need to create a file that starts with a dot? File Explorer will now allow you to rename a file to be something like “.gitignore” – previously there would be an error citing that you needed to provide a name.
We fixed an issue resulting in File Explorer potentially hanging when trying to rename, delete, or move MKV files in the previous flight.
We fixed an issue resulting in some Insiders not being able to open Cortana when in Tablet Mode.
We fixed an issue resulting in the taskbar blinking if an AC adapter was attached when the device had less than 20% battery.
We fixed an issue resulting in the taskbar disappearing for a second when dismissing Start/Cortana/Search on a secondary monitor.
We’re updating the name of the “Windows Light” theme to now be “Windows (light)”.
We fixed an issue where Cortana’s icon on secondary monitors wouldn’t update colors after switching between light and dark theme.
We fixed an issue where when using light theme + small icons + a vertical taskbar orientation, text written on the taskbar would stay white and thus wouldn’t be readable.
We fixed an issue that could result in open apps not being shown on the taskbar (but being visible in Alt + Tab).
We fixed an issue resulting in greys having an unexpected slight pinkish/purple-ish tinge on some devices in recent flights.
We fixed an issue that could result in DWM crashing after enabling high contrast.
We fixed an issue in Ease of Access’s Cursor and pointer settings, mouse pointer size and color are now retained on upgrade. There is a remaining issue with mouse pointer showing white color instead of the selected color after signing out and signing back in.
When using the Magnifier with larger pointers, it pans smoothly as the pointers change shape.
We fixed an issue where navigation mode on Orbit display could not be changed.
We fixed an issue where Narrator paused unexpectedly when reading through a PDF.
We fixed an issue where users were unable to join or switch between Windows Insider rings.
We fixed an issue where the Windows Security app may show an unknown status for the Virus & threat protection area, or not refresh properly.

New in Microsoft Windows SDK Build 18290 Insider Preview (Dec 14, 2018)

New in Microsoft Windows SDK Build 17682 Insider Preview (Jun 6, 2018)

New in Microsoft Windows SDK Build 17677 Insider Preview (May 30, 2018)

MC.EXE:
We’ve made some important changes to the C/C++ ETW code generation of mc.exe (Message Compiler)
The “-mof” parameter is deprecated. This parameter instructs MC.exe to generate ETW code that is compatible with Windows XP and earlier. Support for the “-mof” parameter will be removed in a future version of mc.exe
As long as the “-mof” parameter is not used, the generated C/C++ header is now compatible with both kernel-mode and user-mode, regardless of whether “-km” or “-um” was specified on the command line. The header will use the _ETW_KM_ macro to automatically determine whether it is being compiled for kernel-mode or user-mode and will call the appropriate ETW APIs for each mode. The only remaining difference between “-km” and “-um” is that the EventWrite[EventName] macros generated with “-km” have an Activity ID parameter while the EventWrite[EventName] macros generated with “-um” do not have an Activity ID parameter.
The EventWrite[EventName] macros now default to calling EventWriteTransfer (user mode) or EtwWriteTransfer (kernel mode). Previously, the EventWrite[EventName] macros defaulted to calling EventWrite (user mode) or EtwWrite (kernel mode).
The generated header now supports several customization macros. For example, you can set the MCGEN_EVENTWRITETRANSFER macro if you need the generated macros to call something other than EventWriteTransfer.
The manifest supports new attributes.
Event “name”: non-localized event name.
Event “attributes”: additional key-value metadata for an event such as filename, line number, component name, function name.
Event “tags”: 28-bit value with user-defined semantics (per-event).
Field “tags”: 28-bit value with user-defined semantics (per-field – can be applied to “data” or “struct” elements).
You can now define “provider traits” in the manifest (e.g. provider group). If provider traits are used in the manifest, the EventRegister[ProviderName] macro will automatically register them.
MC will now report an error if a localized message file is missing a string. (Previously MC would silently generate a corrupt message resource.)
MC can now generate Unicode (utf-8 or utf-16) output with the “-cp utf-8” or “-cp utf-16” parameters.
API Updates and Additions:
When targeting new APIs, consider writing your app to be adaptive in order to run correctly on the widest number of Windows 10 devices.

New in Microsoft Windows SDK Build 17672 Insider Preview (May 23, 2018)

MC.EXE:
We’ve made some important changes to the C/C++ ETW code generation of mc.exe (Message Compiler):
The “-mof” parameter is deprecated. This parameter instructs MC.exe to generate ETW code that is compatible with Windows XP and earlier. Support for the “-mof” parameter will be removed in a future version of mc.exe.
As long as the “-mof” parameter is not used, the generated C/C++ header is now compatible with both kernel-mode and user-mode, regardless of whether “-km” or “-um” was specified on the command line. The header will use the _ETW_KM_ macro to automatically determine whether it is being compiled for kernel-mode or user-mode and will call the appropriate ETW APIs for each mode.
The only remaining difference between “-km” and “-um” is that the EventWrite[EventName] macros generated with “-km” have an Activity ID parameter while the EventWrite[EventName] macros generated with “-um” do not have an Activity ID parameter.
The EventWrite[EventName] macros now default to calling EventWriteTransfer (user mode) or EtwWriteTransfer (kernel mode). Previously, the EventWrite[EventName] macros defaulted to calling EventWrite (user mode) or EtwWrite (kernel mode).
The generated header now supports several customization macros. For example, you can set the MCGEN_EVENTWRITETRANSFER macro if you need the generated macros to call something other than EventWriteTransfer.
The manifest supports new attributes.
Event “name”: non-localized event name.
Event “attributes”: additional key-value metadata for an event such as filename, line number, component name, function name.
Event “tags”: 28-bit value with user-defined semantics (per-event).
Field “tags”: 28-bit value with user-defined semantics (per-field – can be applied to “data” or “struct” elements).
You can now define “provider traits” in the manifest (e.g. provider group). If provider traits are used in the manifest, the EventRegister[ProviderName] macro will automatically register them.
MC will now report an error if a localized message file is missing a string. (Previously MC would silently generate a corrupt message resource.)
MC can now generate Unicode (utf-8 or utf-16) output with the “-cp utf-8” or “-cp utf-16” parameters.
API Updates and Additions:
When targeting new APIs, consider writing your app to be adaptive in order to run correctly on the widest number of Windows 10 devices.

New in Microsoft Windows SDK Build 17666 Insider Preview (May 15, 2018)

MC.EXE:
We’ve made some important changes to the C/C++ ETW code generation of mc.exe (Message Compiler):
The “-mof” parameter is deprecated. This parameter instructs MC.exe to generate ETW code that is compatible with Windows XP and earlier. Support for the “-mof” parameter will be removed in a future version of mc.exe.
As long as the “-mof” parameter is not used, the generated C/C++ header is now compatible with both kernel-mode and user-mode, regardless of whether “-km” or “-um” was specified on the command line. The header will use the _ETW_KM_ macro to automatically determine whether it is being compiled for kernel-mode or user-mode and will call the appropriate ETW APIs for each mode.
The only remaining difference between “-km” and “-um” is that the EventWrite[EventName] macros generated with “-km” have an Activity ID parameter while the EventWrite[EventName] macros generated with “-um” do not have an Activity ID parameter.
The EventWrite[EventName] macros now default to calling EventWriteTransfer (user mode) or EtwWriteTransfer (kernel mode). Previously, the EventWrite[EventName] macros defaulted to calling EventWrite (user mode) or EtwWrite (kernel mode).
The generated header now supports several customization macros. For example, you can set the MCGEN_EVENTWRITETRANSFER macro if you need the generated macros to call something other than EventWriteTransfer.
The manifest supports new attributes.
Event “name”: non-localized event name.
Event “attributes”: additional key-value metadata for an event such as filename, line number, component name, function name.
Event “tags”: 28-bit value with user-defined semantics (per-event).
Field “tags”: 28-bit value with user-defined semantics (per-field – can be applied to “data” or “struct” elements).
You can now define “provider traits” in the manifest (e.g. provider group). If provider traits are used in the manifest, the EventRegister[ProviderName] macro will automatically register them.
MC will now report an error if a localized message file is missing a string. (Previously MC would silently generate a corrupt message resource.)
MC can now generate Unicode (utf-8 or utf-16) output with the “-cp utf-8” or “-cp utf-16” parameters.
API Updates and Additions:
When targeting new APIs, consider writing your app to be adaptive in order to run correctly on the widest number of Windows 10 devices.

New in Microsoft Windows SDK 10.1.17110 Insider Preview (Mar 7, 2018)

New in Microsoft Windows SDK 10.1.17107 Insider Preview (Feb 24, 2018)

New in Microsoft Windows SDK 10.1.17095 Insider Preview (Feb 13, 2018)

New in Microsoft Windows SDK 10.1.17061 Insider Preview (Dec 19, 2017)

New in Microsoft Windows SDK 10.1.17046 Insider Preview (Dec 1, 2017)

New in Microsoft Windows SDK 10.1.17040 Insider Preview (Nov 21, 2017)

New in Microsoft Windows SDK 10.1.16288 Insider Preview (Sep 19, 2017)

New in Microsoft Windows SDK 10.1.16232.1000 Insider Preview (Jul 13, 2017)

New in Microsoft Windows SDK 10.0.15063.468 (Jul 13, 2017)

New in Microsoft Windows SDK 10.0.15063.137 (May 8, 2017)

New in Microsoft Windows SDK 10.0.14393.795 (Feb 20, 2017)

New in Microsoft Windows SDK 10.0.14393.33 (Aug 13, 2016)

New in Microsoft Windows SDK 10.0.10586.212 (Jun 30, 2016)

Windows Headers, Libraries, and Metadata:
The SDK includes versioned folders for headers, libraries and metadata. This will allow future releases of the Windows 10 SDK to install side by side with the earlier releases.
Windows Contracts:
Windows Runtime metadata is no longer maintained in a single Windows.WinMD file. This metadata is now maintained in separate files located in the references folder. Contract files are loaded via the Platform.XML files for each platform, and via SDKManifest files provided by each Platform extension SDK.
Windows Platform Extension SDKs:
The Windows SDK includes the following Platform extension SDKs: Windows Desktop, Windows Mobile, Windows IoT, and Windows Team. When you add these extensions to your Universal Windows app project, device specific APIs and metadata will be made available to your app. This allows you to light up specific functionality and personalize the user experience.
WindowsApp.lib:
WindowsApp.lib was introduced for developer convenience. When linking with the WindowsApp.lib, only those exports supported on all platforms will be linked. For building strictly a Universal Windows app, on the WindowsApp.lib needs to be included in the Link path.
Unified C Runtime library (CRT):
The Windows 10 SDK now includes the Microsoft Unified CRT – a new CRT that is shared between apps and the operating system. The headers, sources, and libraries included in the SDK allow you to build software with the new CRT. The SDK installs a debug version of the CRT DLL to enable debugging, and provides redistribution packages to enable you to deploy your application on older operating systems. These packages will also be distributed to older versions of the operating system via Windows Update.
The redist packages are not included with this setup, but can be downloaded separately.
New APIs:
Universal Windows app:
Windows 10 has converged a large number of APIs between Windows Phone and Windows Desktop. In addition, we have introduced many more requested APIs.
AllJoyn:
AllJoyn is a system that allows devices to advertise and share their abilities with other devices around them. This SDK includes tools and library support so that your apps can use the AllJoyn standard to communicate with other devices. We have added APIs and a code generation tool, AllJoynCodeGen, that generates a complete Windows Runtime component using an XML description of one or more AllJoyn interfaces derived from a specification or device.
The following tools are new or have been updated in the Windows 10 SDK:
Windows 10 Mobile Emulator:
The Emulator for Windows 10 Mobile is a desktop application that emulates a device running Windows 10 for Mobile Emulator. It provides a virtualized environment in which you can debug and test your Windows apps without a physical device. It also provides an isolated environment for your application prototypes.
Samples:
Windows 10 app samples are now available through GitHub. You can browse the code on GitHub, clone a personal copy of the repository using Git, or download a zipped archive of all the samples. We welcome feedback, so feel free to open an issue within the repository if you have a problem or question. These samples are designed to run on desktop, mobile, and future devices that support the Universal Windows Platform.
The Windows SDK includes the Windows App Certification Kit 10 (Windows ACK). Use the ACK to verify that your app is ready to submit to the certification program for Windows 7, Windows 8, Windows 8.1, Windows Phone 8.1, or Windows 10.
DirectX Updates:
In Windows 10, the SDK introduces Direct3D 12 graphics debugging support in Visual Studio 2015. The new Direct3D 12 graphics debugging features allow you to debug graphics seamlessly in both Direct3D 11 and Direct3D 12.
Note: If you create an empty Win32 project in Visual Studio 2015, you will need to set the platform version to 10.x to get access to the dx12 headers and libraries.
Windows Performance Toolkit
Windows Performance Tools are designed for analysis of a wide range of performance problems including application start times, boot issues, deferred procedure calls and interrupt activity (DPCs and ISRs), system responsiveness issues, application resource usage, and interrupt storms.
WinDBG and the Windows Debugger:
The Windows Debugger has been updated to improve the debugging experience.
.NET Framework 4.6 SDK:
The .NET Framework is a development platform for building apps for Windows, Windows Phone, Windows Server, and Microsoft Azure. It consists of the common language runtime (CLR) and the .NET Framework class library, which includes classes, interfaces, and value types that support an extensive range of technologies. The .NET Framework provides a managed execution environment, simplified development and deployment, and integration with a variety of programming languages, including Visual Basic and Visual C#.
Windows Accessibility Tools:
Accessibility tools that previously shipped in the Microsoft Accessibility Package (MSAA SDK) now ship along with the Windows SDK. These tools are used to inspect messages used by screen readers to take text from applications and either speak it with text-to-speech or passes it to a Braille device.

New in Microsoft Windows SDK 8.100.26898.0 (Jan 27, 2015)

NOV 2014 REVISIONS:
API updates:
Threading APIs are now available for use with Windows Store and Windows Phone apps. For a full list of Win32 APIs supported by Windows Store apps.
AUGUST 2014 REVISIONS:
API updates:
The Windows SDK and Windows App Certification Kit have been updated to allow you to use Win32 and Berkley sockets in Windows Store apps. During app development you can now use the socket APIs. Updated APIs are listed in the Win32 and COM for Windows Runtime apps reference.
Graphics Debugging and Graphics Frame Analysis:
A new command line tool has been provided in the DirectX remote MSI package that allows for capturing a graphics trace on a remote system.
APRIL 2014 REVISIONS:
Windows App Certification Kit 3.3:
The latest version of the Windows App Certification Kit is an in-place update for all earlier versions. Version 3.3 introduces support for pre-certification testing of Windows 8.1 Phone apps prior to the final Windows Phone Store submission. With this release, the Windows App Certification Kit now supports the following app types
Desktop apps for Windows 7, Windows 8, and Windows 8.1
Windows Store apps for Windows 8 and Windows 8.1
Windows 8.1 Phone apps
Graphics Debugging and Graphics Frame Analysis:
The Windows SDK now includes support that enables the Visual Studio "Graphics Debugging" and "Graphics Frame Analysis" features for both Windows 8.1 and Windows Phone 8.1
OCTOBER 2013 REVISIONS:
'.NET Framework 4.5.1 SDK:
The Windows SDK includes the reference assemblies, tools, headers, and libraries needed to build apps that target the .NET Framework 4.5.1.
ARM Kit policy:
A new ARM Kits policy (Microsoft-Windows-Kits-Secure-Boot-Policy .p7b) comes with the Windows SDK. To run the Windows SDK tools on an ARM device, make sure the ARM Kits policy is installed. For instructions, see ARM Kit policy information.
Device Metadata Authoring Wizard:
Device manufacturers and service operators can use this tool to develop a metadata package for their devices and services. This metadata package provides info that appears to Windows users, including the photorealistic icon and name for the device or service.
Integrated DirectX SDK:
The DirectX SDK is now part of the Windows SDK. Many tools and components that originally shipped in the DirectX SDK now ship as part of the Windows SDK. These tools support building great DirectX apps for Windows using only a single SDK. If you need to use the DirectX SDK for access to legacy components, we’ve provided directions for using it with the new Windows SDK through Visual Studio 2012.
Direct3D shader compiler ships with Windows:
The d3dcompiler_47.dll now ships with Windows 8.1. If you’re targeting Windows 8.1, you no longer need to ship the DirectX Redist.
UPDATED OR REMOVED FEATURES:
Command-line build environment:
The Windows SDK no longer ships with a complete command-line build environment. Instead, the Windows SDK requires a compiler and build environment to be installed separately.
NET Framework tools and reference assemblies:
The Windows SDK supports the .NET Framework 4.5.1 development tools and reference assemblies. Tools and reference assemblies for previous versions of the .NET Framework aren't included in this version of the Windows SDK. You can still download and install the Microsoft Windows SDK for Windows 7 and .NET Framework 4 to get tools and reference assemblies for previous versions of the .NET Framework.
Samples:
We have moved all Windows samples to the Windows Dev Center. You can find hundreds of demos that you can filter by technology, programming language, and development platform. Samples are available for Windows Store apps and desktop apps.

New in Microsoft Windows SDK 8.59.29750.0 (Jan 27, 2015)

WINDOWS ACK 2.2:
As of November 28, 2012, either Windows ACK 2.2 or the previous version (9200) is required when submitting desktop apps for Windows certification. Windows ACK 2.2 is also required for app submissions to the Windows Store as of December 11, 2012. Windows ACK 2.2 includes bug fixes as well as three new tests
Optimized binding references (when using bindings, WinJS.Binding.optimizeBindingReferences should be set to TRUE in the app’s JavaScript to optimize the memory usage)
Branding validation (apps should not use the default icons generated by Visual Studio or included in the SDK samples)
Private code signing (remove any private code signing keys, such as .pfx files, from the package).
Windows Store apps:
The Windows SDK provides all the headers, libraries, Windows Metadata files, and tools to build the new Windows Store apps introduced with Windows 8.
NET Framework 4.5 SDK:
The Windows SDK includes the reference assemblies, tools, headers, and libraries needed to build applications that target the .NET Framework 4.5.
Integrated DirectX SDK:
The DirectX SDK is now part of the Windows SDK. Many of the tools and components that originally shipped in the DirectX SDK now ship as part of the Windows SDK to support building great DirectX applications for Windows using only a single SDK. Directions for using the DirectX SDK with the new Windows SDK through Visual Studio 2012 can be found here, if you need to continue to use the DirectX SDK for access to legacy components.
Decreased size:
At roughly 300 MB, this version of the SDK is about half the size of the Windows SDK for Windows 7 and the .NET Framework 4. Therefore, the newer version installs faster and has a smaller system footprint.
UPDATED OR REMOVED FEATURES:
Command-line build environment:
The Windows SDK no longer ships with a complete command-line build environment. The Windows SDK now requires a compiler and build environment to be installed separately. By removing the command-line build environment, the Windows SDK no longer ships the following components: Windows SDK Platform Toolset, Visual C++ Compilers and C Runtime (CRT), and Windows SDK Configuration Tool.
Microsoft Help Viewer:
The Microsoft Help Viewer no longer ships as part of the Windows SDK.
NET framework tools and reference assemblies:
The Windows SDK for Windows 8 includes support for the .NET Framework 4.5 development tools and reference assemblies. Tools and reference assemblies for previous versions of the .NET Framework aren't included in this version of the Windows SDK. You can continue to download and install the Microsoft Windows SDK for Windows 7 and .NET Framework 4 to acquire tools and reference assemblies for previous versions of the .NET Framework.
IntelliSense:
The XML documentation comments for the .NET Framework reference assemblies no longer ship as part of the Windows SDK.
Samples:
All Windows samples have been moved to the Windows Dev Center. The Windows Dev Center provides access to hundreds of demonstrative samples which are filterable by technology, programming language, and development platform. Samples are available for Windows Store apps and Desktop apps. Additional samples are available on the MSDN Code Gallery.
Tools:
Many obsolete or deprecated tools have been removed from the Windows SDK. The following tools have been removed: Apatch.exe, Bind.exe, Checkv4.exe, Consume.exe, DeviceSimulatorForWindowsSideShow.msi, Err.exe, FDBrowser.exe, FXCopSetup.exe, Guidgen.exe, Make-Shell.exe, MDbg.exe, Mpatch.exe, MSIZap.exe, PTConform.exe, ReBase.exe, sddlgen.exe, setenv.cmd, SetReg.exe, SoapSuds.exe, Sporder.exe, TcpAnalyzer.exe, TSPDesigner.exe, UTL2IDL.exe, ValidateSD.exe, VirtualLightSensor.exe, WinDiff.exe, WpfPerf.exe.

Microsoft Windows SDK Changelog

What's new in Microsoft Windows SDK Build 26100 Dev Insider Preview / Build 26100 Canary Insider Pre

New in Microsoft Windows SDK Build 23612 Dev Insider Preview (Jan 4, 2024)

New in Microsoft Windows SDK Build 26020 Canary Insider Preview (Jan 4, 2024)

New in Microsoft Windows SDK Build 25997 Canary Insider Preview (Nov 28, 2023)

New in Microsoft Windows SDK Build 23590 Dev Insider Preview (Nov 28, 2023)

New in Microsoft Windows SDK Build 25987 Canary Insider Preview (Nov 3, 2023)

New in Microsoft Windows SDK Build 23580 Dev Insider Preview (Nov 3, 2023)

New in Microsoft Windows SDK Build 23506 Dev Insider Preview (Jul 21, 2023)

New in Microsoft Windows SDK Build 25346 Canary Insider Preview (Apr 21, 2023)

New in Microsoft Windows SDK Build 23430 Dev Insider Preview (Apr 13, 2023)

New in Microsoft Windows SDK Build 25314 Insider Preview (Mar 9, 2023)

New in Microsoft Windows SDK Build 25309 Insider Preview (Mar 3, 2023)

New in Microsoft Windows SDK Build 25284 Insider Preview (Jan 30, 2023)

New in Microsoft Windows SDK Build 25281 Insider Preview (Jan 20, 2023)

New in Microsoft Windows SDK Build 25252 Insider Preview (Dec 6, 2022)

New in Microsoft Windows SDK Build 25236 Insider Preview (Nov 2, 2022)

New in Microsoft Windows SDK Build 25227 Insider Preview (Oct 25, 2022)

New in Microsoft Windows SDK Build 25217 Insider Preview (Oct 6, 2022)

New in Microsoft Windows SDK Build 25211 Insider Preview (Oct 4, 2022)

New in Microsoft Windows SDK Build 25201 Insider Preview (Sep 16, 2022)

New in Microsoft Windows SDK Build 25182 Insider Preview (Aug 18, 2022)

New in Microsoft Windows SDK Build 25179 Insider Preview (Aug 11, 2022)

New in Microsoft Windows SDK Build 25169 Insider Preview (Jul 28, 2022)

New in Microsoft Windows SDK Build 25163 Insider Preview (Jul 21, 2022)

New in Microsoft Windows SDK Build 25158 Insider Preview (Jul 13, 2022)

New in Microsoft Windows SDK Build 25151 Insider Preview (Jun 30, 2022)

New in Microsoft Windows SDK Build 25145 Insider Preview (Jun 23, 2022)

New in Microsoft Windows SDK Build 22593 Insider Preview (Apr 6, 2022)

New in Microsoft Windows SDK Build 22581 Insider Preview (Mar 29, 2022)

New in Microsoft Windows SDK Build 22463 Insider Preview (Sep 22, 2021)

New in Microsoft Windows SDK Build 22458 Insider Preview (Sep 17, 2021)

New in Microsoft Windows SDK Build 20241 Insider Preview (Oct 21, 2020)

New in Microsoft Windows SDK Build 20236 Insider Preview (Oct 15, 2020)

New in Microsoft Windows SDK Build 20211 Insider Preview (Sep 10, 2020)

New in Microsoft Windows SDK 10.0.17763.0 (Jan 17, 2020)

New in Microsoft Windows SDK Build 18999 Insider Preview (Oct 15, 2019)

New in Microsoft Windows SDK Build 18950 Insider Preview (Aug 6, 2019)

New in Microsoft Windows SDK Build 18922 Insider Preview (Jun 26, 2019)

New in Microsoft Windows SDK Build 18362 Insider Preview (Apr 3, 2019)

New in Microsoft Windows SDK Build 18361 Insider Preview (Mar 29, 2019)

New in Microsoft Windows SDK Build 18356 Insider Preview (Mar 20, 2019)

New in Microsoft Windows SDK Build 18342 Insider Preview (Feb 27, 2019)

New in Microsoft Windows SDK Build 18290 Insider Preview (Dec 14, 2018)

New in Microsoft Windows SDK Build 17682 Insider Preview (Jun 6, 2018)

New in Microsoft Windows SDK Build 17677 Insider Preview (May 30, 2018)

New in Microsoft Windows SDK Build 17672 Insider Preview (May 23, 2018)

New in Microsoft Windows SDK Build 17666 Insider Preview (May 15, 2018)

New in Microsoft Windows SDK 10.1.17110 Insider Preview (Mar 7, 2018)

New in Microsoft Windows SDK 10.1.17107 Insider Preview (Feb 24, 2018)

New in Microsoft Windows SDK 10.1.17095 Insider Preview (Feb 13, 2018)

New in Microsoft Windows SDK 10.1.17061 Insider Preview (Dec 19, 2017)

New in Microsoft Windows SDK 10.1.17046 Insider Preview (Dec 1, 2017)

New in Microsoft Windows SDK 10.1.17040 Insider Preview (Nov 21, 2017)

New in Microsoft Windows SDK 10.1.16288 Insider Preview (Sep 19, 2017)

New in Microsoft Windows SDK 10.1.16232.1000 Insider Preview (Jul 13, 2017)

New in Microsoft Windows SDK 10.0.15063.468 (Jul 13, 2017)

New in Microsoft Windows SDK 10.0.15063.137 (May 8, 2017)

New in Microsoft Windows SDK 10.0.14393.795 (Feb 20, 2017)

New in Microsoft Windows SDK 10.0.14393.33 (Aug 13, 2016)

New in Microsoft Windows SDK 10.0.10586.212 (Jun 30, 2016)

New in Microsoft Windows SDK 8.100.26898.0 (Jan 27, 2015)

New in Microsoft Windows SDK 8.59.29750.0 (Jan 27, 2015)

New in Microsoft Windows SDK 7.1 (Jan 27, 2015)