New in version 2.4.6.2

March 3rd, 2014
  • Minor tweaks
  • Customizable icon
  • Important fix for servers with buggy socket reuse

New in version 2.4.6.1 (February 27th, 2014)

  • Add PCAPNG support
  • Basic CTRL+Z undeletion
  • Improved Filters tab
  • New Art
  • Various bugfixes

New in version 2.4.5.9 (February 27th, 2014)

  • Support basic CURL commands in Composer>Scratchpad
  • Add "Edit Image" to ImageView inspector
  • Improve Client Certificate handling

New in version 2.4.5.8 (December 11th, 2013)

  • Add Packet Capture Import
  • Enhanced Composer
  • Enhanced AutoResponder
  • Enhanced Protocol Violation detection
  • Improved WebView
  • Add registry-fallback to EnableLoopback

New in version 2.4.5.6 (October 24th, 2013)

  • Use F3/ShiftF3 to navigate Find results
  • Improved XMLView
  • Improved WebSocket support
  • Various bugfixes

New in version 2.4.3.7 Beta (April 10th, 2013)

  • Enhanced QuickExec
  • Improved FiddlerHook
  • Many bugfixes

New in version 2.4.3.6 Beta (March 23rd, 2013)

  • Improved column customization
  • Improved performance
  • New art
  • Many bugfixes

New in version 2.4.3.0 Beta (February 9th, 2013)

  • Improved Echo service
  • Improved column customization
  • Many bugfixes

New in version 2.4.2.6 (January 22nd, 2013)

  • Improved ImageView
  • Improved TextWizard
  • Many bugfixes

New in version 2.4.2.5 Beta (January 16th, 2013)

  • Improved ImageView
  • Many bugfixes

New in version 2.4.2.4 (December 3rd, 2012)

  • Search-by-column
  • Protocol Violation list
  • Improved Performance
  • Enhanced AutoResponder
  • New layout option (View > Layout)
  • Enhanced Fiddler Options dialog
  • Various bugfixes

New in version 2.4.2.0 Beta (November 8th, 2012)

  • Search-by-column
  • Protocol Violation list
  • Performance improvements
  • UI tweaks
  • Many bugfixes

New in version 2.4.1.1 (September 17th, 2012)

  • Added Encodings panel to TextWizard
  • Support Triple-click in the Scratchpad
  • Improved EnableLoopback utility
  • Update contact addresses
  • Various bugfixes

New in version 2.4.1.0 (August 29th, 2012)

  • Improved Timeline
  • Enhance HTTPLint
  • Various bugfixes

New in version 2.4.0.8 Beta (August 25th, 2012)

  • Improved Timeline
  • Improved about:config
  • Improved AutoResponder
  • Various bugfixes

New in version 2.4.0.6 (August 17th, 2012)

  • Improved performance
  • Improved screenshot
  • Improved Composer
  • Improved QuickExec
  • Improved AutoResponder
  • Many bugfixes

New in version 2.4.0.5 Beta (August 16th, 2012)

  • Improved QuickExec
  • Improved screenshot
  • Improved performance
  • Many bugfixes

New in version 2.4.0.3 Beta (August 4th, 2012)

  • Improved composer
  • Improved Performance
  • Add Files > Recent menu
  • Updated sounds for script load
  • Add fiddler.Lint.HTTP feature
  • Various bugfixes

New in version 2.4.0.1 Beta (July 10th, 2012)

  • Enhanced Composer including Scratchpad feature
  • Add Copy -> Response DataURI to context menu
  • Add Reissue -> Reissue From Composer to context menu
  • Add "Automatically Authenticate" rule to Rules menu
  • Various bugfixes

New in version 2.4.0.0 (July 2nd, 2012)

  • Improved JSON decoder
  • Many bugfixes

New in version 2.3.9.9 (June 4th, 2012)

  • Implement HTTP->FTP Gateway
  • Improved Authentication support
  • Improved request encoding support
  • Improved HAR import
  • Enhanced AutoResponder
  • Improved WebSocket support
  • Various bugfixes

New in version 2.3.9.5 (June 4th, 2012)

  • Improved error handling
  • Minor new features

New in version 2.3.9.3 (February 28th, 2012)

  • WebView supports all font types
  • Full TLS Extensions support
  • Improved Script Engine
  • Improved Performance
  • Various bugfixes

New in version 2.3.8.5 (January 25th, 2012)

  • Enhanced Performance
  • Enhanced Inspectors
  • Important bugfixes

New in version 2.3.7.4 (January 25th, 2012)

  • Major rewrite of HTTPS/WebSocket handling
  • Add File Upload to Composer (nee Request Builder)
  • Add Capture FTP checkbox
  • New overloads to BindUIColumn and AddBoundColumn to indicate column should be sorted numerically
  • Expose Original Session ID in Comments field when reloading SAZ file
  • Add HTTPS-decryption process filter
  • Add POST and quotationmark-encoding support to WCATExporter
  • In HTTPS-decryption, if we can't get the certificate, don't fail entirely, instead treat as a blind tunnel.
  • Add "Save and Open as Local &File" context menu
  • Enhanced File Exporter
  • Add FiddlerGotRequestHeaders and FiddlerGotResponseHeaders timers
  • Add HostList class for faster and more standardized handling of Hostnames.
  • Add "Run Filters now" to Filter's Action button.
  • Add more XML code description attributes
  • Enhanced AutoResponder
  • sTunnel field converted to property with correct accessors [Breaking change]
  • Various bugfixes

New in version 2.3.6.7 (November 3rd, 2011)

  • Various bugfixes

New in version 2.3.6.4 (October 5th, 2011)

  • Request Cookie Inspector
  • Automate firewall exemption
  • Inspect in New Window command
  • Improved Inspectors
  • Troubleshooter for Filters on the Help menu
  • Various UI improvements
  • Various bugfixes

New in version 2.3.4.4 (June 23rd, 2011)

  • AutoUpgrader
  • Tweaks for Firefox 5
  • Assorted bugfixes

New in version 2.3.4.2 (June 17th, 2011)

  • New features on the AutoResponder tab's context menu
  • Improved support for Apple iOS HTTPS Interception (requires add-on)
  • JSON Inspector
  • Assorted bugfixes

New in version 2.3.3.3 (April 25th, 2011)

  • Add !dns [hostname] and !nslookup [hostname] to list DNS info to Log tab
  • Add !listen PORT [CERTHOSTNAME] to QuickExec
  • Add audio/video/font/silverlight/flash/HTTP-POST Session icons
  • Revamp a few toolbar icons
  • Enable +/- latency adjustments using AutoResponder
  • Add fiddler.ui.inspectors.request.alwaysuse and fiddler.ui.inspectors.response.alwaysuse preferences
  • Changed "Remove Un-Marked" to ignore breakpointed sessions
  • Added fiddler.ui.CtrlX.KeepMarked and fiddler.ui.CtrlX.PromptIfMoreThan # (to replace CONFIG.iPromptBeforeClearAll)
  • Add Screenshot toolbar command, including delay option
  • Delay-Create FiddlerScript file behind pref "fiddler.script.delaycreate" defaults to true
  • Add IE10 User-Agent to default rules
  • Add AlwaysFresh option to Performance menu
  • Add fiddler.requestbuilder.followredirects.max preference
  • Add actInvertSelectedSessions() with hotkey of CTRL+I
  • about:network is now a synonym for about:connectoids
  • Add support for SELECT @REQUEST.HEADER VALUE, use * to test for existence or "\*" to match on a literal star.
  • Various bugfixes

New in version 2.3.3.0 (April 14th, 2011)

  • Improved AutoResponder with latency and per-rule editor
  • Add support for QuickLinkMenu and QuickLinkItem
  • Various bugfixes

New in version 2.3.2.7 (April 4th, 2011)

  • Allow save/load of session content to FARX file, using compression if needed
  • Added "Open URL" to AutoResponder rules menu
  • Add "11" to Options > Font Size dropdown; enable CTRL+Plus, CTRL+Minus, CTRL+0
  • Set the mouse cursor for the interactable panels on the Status Bar
  • Support sequential requests via # token in RequestBuilder
  • Don't trim a User-Marked/Commented session
  • Add "Remove Un-Marked" to toolbar menu
  • Update _replaceVirtualHostnames to update request line for CONNECT tunnels
  • Fixed the directly-specified Proxy script handling code; added fiddler.network.gateway.DetermineInProcess preference
  • Fix AutoResponder's Connect+AlternateURL scenario
  • AutoResponder now emits detailed 404 error if session has a process ID or was generated by Fiddler
  • Update installer for Win7+ You must use "Turn Windows features on or off" in the Control Panel to install or configure Microsoft .NET Framework 2.0 SP2 for Windows 7+

New in version 2.3.2.3 (April 4th, 2011)

  • Improved Performance
  • Improved AutoResponder
  • Improved support for Windows Phone emulator
  • Edit preferences with about:config
  • Various small improvements
  • Lots of bugfixes

New in version 2.3.1.0 (February 11th, 2011)

  • Improved support for Windows Phone emulator
  • Editing preferences enabled in about:config

New in version 2.3.0.0 (July 26th, 2010)

  • Various small improvements
  • Lots of bugfixes

New in version 2.2.9.6 (June 28th, 2010)

  • Import/Export feature
  • Tons of bugfixes

New in version 2.2.8.6 (February 1st, 2010)

  • Added -viewer switch for new "view only" mode
  • Improved Filters tab
  • Improved Request Builder
  • Improved FiddlerHook for Firefox
  • Various bugfixes

New in version 2.2.7.5 (February 1st, 2010)

  • 64-bit support
  • Added Tools > HOSTS
  • Improved inspectors
  • Improved performance
  • Various bugfixes

New in version 2.2.4.2 (August 6th, 2009)

  • Improved Text Encoder/Decoder
  • Improved performance
  • Improved FiddlerHook
  • Various bugfixes

New in version 2.2.2.0 (June 16th, 2009)

  • New Fiddler toolbar
  • Improved Timeline
  • Performance and fidelity improvements
  • Include WebView inspector by default
  • Various bugfixes

New in version 2.2.1.4 (April 17th, 2009)

  • Added FiddlerHook Firefox Extension
  • Hook all connections by default
  • Improved TextWizard
  • Improved default behavior of Find dialog
  • Allow drag/drop of files to AutoResponder to create new rules
  • Assorted bugfixes

New in version 2.1.6.2 (June 20th, 2008)

  • Improved Fiddler Options dialog
  • ProcessID column added to Session List
  • Process Filter added to Filters tab
  • Improved Upstream Gateway support
  • Improved Performance
  • AutoStream Video option
  • Various bug fixes

New in version 2.1.2.0 (November 15th, 2007)

  • Improved APIs for automation
  • Improved inspectors
  • Improved SimpleFilter tab
  • Improved HTTP compression efficiency
  • Improved international support
  • Improved TextWizard
  • Many bugfixes

New in version 2.1.1.1 (October 17th, 2007)

  • New context menu Select Parent/Children/Duplicates (or hit D,C,P)
  • SimpleFilters tab now included by default
  • Improved Session Archive File format with timestamps
  • Improved streaming mode
  • Improved inspectors
  • Improved performance
  • Improved extensibility
  • Improved international support
  • Improved search box
  • Improved Header editor including header templates
  • Many bugfixes

New in version 2.0.9.0 Beta (August 31st, 2007)

  • Improved Inspectors (WebForms/Cookies/Hex/Etc)
  • Improved Save As WebTest
  • Support for HTTPS connection reuse and upstream HTTPS gateways
  • More explicit http errors on malformed response.
  • Various bugfixes

New in version 1.1.6 (May 10th, 2006)

  • Introduced support for upstream proxy autodetection and configuration scripts (http/https delivered scripts only)
  • Enhanced Find Sessions feature with new options
  • Added "Clone response" to session context menu
  • Fixed upstream NTLM/Negotiate proxy support
  • When DebugSpew is on, both requests and responses dumped to debug console in hex format
  • Change default for CaptureCONNECT to True
  • Added FiddlerObject.UI.actReloadInspectors() added to simplify inspector development
  • Fixed Save as WebTest in various ways
  • Allow userscript to override the hostname used to determine upstream IP, without changing the HTTP headers. This enables HOSTS-file type scenarios where a request should be sent to an alternative server. e.g. in your OnBeforeRequest() handler, put code like: if (oSession.host=="production.example.com") { oSession["x-overrideHost"] = "development.example.com" } Obviously, this doesn't work if you have an upstream proxy, and you have to just tweak oSession.host directly for those cases.
  • Performance and Robustness improvements