May 14th, 2012· Very serious old bug fix. This was found trying to implement the new constraint (see below) in such a way to solve a more complicated file by Yush Yuen. Since nobody complained, it seems that until now the bug was not critical (but might have slowed down some timetables which have rooms and preferred/home rooms constraints). Bug exists from the start of the implementation of the space allocation in FET, probably. A big 'Thank you!' to Yush Yuen, who was very helpful in finding the problem.
· Added a new constraint, activities occupy max different rooms (which can, for example, constrain some activities to be in the same room (in different time slots, of course) if max different rooms = 1). Suggested by Yush Yuen, nomad, Volker Dirr and maybe others.
· Safe saving of .fet files (save with .fet.tmp name, then remove old .fet file, then rename .fet.tmp to .fet).
· Saving of the random seed after the end of the generation (in addition to saving it at the beginning).
· Added an Uzbek translation
April 19th, 2012· Printing of the timetables (directly from the interface), by Volker Dirr (suggested by Bobby Wise, Anwarul Alam, daviodan and maybe other users).
· Updated to Qt 4.8.1.
· Minor interface improvements and bug fixes.
· Added a new Greek sample file
March 6th, 2012· Updated to Qt 4.8.0.
· Bug fix: command line interface now accepts native separator characters.
· When using command line with a time limit, and the time limit is exceeded, FET will save the highest stage and the current timetable.
· Exporting of the timetable as a CSV file now saves also the activities comments.
· Minor bug fix in HTML timetables.
· Minor interface bug fixes.
December 13th, 2011· Each constraint can be activated/deactivated and also each constraint may have an optional comment. The user can sort the constraints based on their comment. These special functions can only be accessed from all time/space constraints dialogs (suggested by George Miliotis, Davide G. M. Salvetti and maybe other users).
· Each activity may have an optional comment (suggested by K, m and maybe other users).
· The command line version now saves the current timetable and the highest stage timetable if it receives SIGTERM from the user, then exits (suggested by Davide G. M. Salvetti and maybe other users).
· Added a Vietnamese translation, by Nguyen Truong Thang.
· Minor interface bug fixes.
· Updated the Saudi Arabia examination timetable file, by Silver.
October 28th, 2011Added two new constraints:
· Activities occupy max time slots from selection. This is useful in more cases, for instance to force some teachers to have activities in certain time slots. (For example, if in a 5 days week with 6 hours per day, teacher T has 20 hours of activities and needs to have activities in the first 3 hours of Monday: add a constraint with all the teacher's activities, all time slots minus these 3 (so 5*6-3=27 slots selected in the constraint), and specify the maximum number of selected time slots occupied by the selected activities to be 17.)
· Activities max simultaneous in selected time slots. User chooses a set of activities, a set of time slots, and specifies that in each time slot there should be an upper limit on the activities from the chosen set. Useful for example if you want each slot to have say at least 3 free teachers, for substitution or supervision.
· Updated to Qt 4.7.4.
· Removed dependence of Qt3Support classes. Many dialogs were changed. This is to improve FET and to prepare it for the future Qt 5.
· The program is now storing the geometry of most dialogs
· The activity tags, students, teachers, subjects, rooms, buildings, activities, subactivities, all time constraints and all space constraints dialogs contain a draggable splitter, for better viewing
· Taking care of when a file was modified. When it was not modified, the user can quit FET directly
· Recently used files list
· Activities rooms statistics - it shows the list of activities which will certainly or possibly be scheduled in an unspecified room
· Removed the upper limit on the number of time and space constraints.
· When modifying the days or hours, the affected constraints will be modified or removed, after confirmation from the user.
· Language change is activated without restarting.
· Many other interface improvements.
· Added a new sample file.
· Improved the Morocco sample file and the Morocco instructions
May 27th, 2011· Updated to Qt 4.7.3.
· The generate multiple timetable dialog now shows max placed activities for the current timetable and for each timetable with time limit exceeded
· Minor improvement in the HTML exported timetables (multi-line comments look better).
· Added a Galician translation
· Added a Spanish secondary school example file
March 24th, 2011· Upgraded to Qt 4.7.2.
· Updated the French translation (it is now complete).
· Added a complete Serbian translation
· Minor improvements.
· Added 3 new sample files
November 2nd, 2010· Upgraded to Qt 4.7.0.
· Improved the Greek translation
· Minor interface improvements.
· Added two new sample files
September 25th, 2010· A rare possible problem is improved (not completely solved). This problem was reported by Marco Barsotti: for some fixed timetables the generation may report incorrectly an impossible timetable. This problem cannot be solved perfectly, only patched, and this will hopefully solve the problem in all practical situations.
· An activity can now be split into 35 (it was previously only 10) - suggested by mohd on the forum.
· Improved a bit the add/modify activity dialogs (inactive tabs for the components of a subactivity are disabled).
· Updated the Slovak translation, by Ondrej Gregor.
· Added a new sample file, by Marco Barsotti.
August 12th, 2010· Speed improvement in the generation algorithm (this speed improvement is better observable as the number of hours per week is larger).
· Added a partial Hebrew translation, by Yotam Medini (only the main menu).
July 20th, 2010· Improved the random number generator, so that potential cycling problems are avoided (though probably nobody met such problems). The new random number generator has a much longer period and is better. The command line parameters for specifying the random seed are changed and you need to change your script if you use FET command line and if you want to specify the random seed. See the README file for the new command line parameters for specifying the random seed.
· Improved memory consumption on constraints activity/activities/subactivities preferred starting times/preferred time slots.
· Minor interface improvements.
· Updates in the Arabic translation, by Hatim Alahmadi.
June 22nd, 2010· Corrected a bug, under newer versions of GNOME (the locked/unlocked icons for the special constraints were not shown in the menus).
· Very rare bug fix (crash in import if some fields in a line are missing, reported by murad).
· Other minor bug fixes in import (if an imported line was incorrect, the report message didn't specify this line number, in some cases).
· Updated the Indonesian translation, by Nirwan Yus.
· Updated the Spanish translation, by Jose Cesar Fernandez Lopez.
· Code cleanup
June 13th, 2010· Added a Slovak translation
May 15th, 2010· Updated the Indonesian translation, by Nirwan Yus.
· Rare minor bug fixed, reported by Frans on the forum.
· Code cleanup.
May 5th, 2010· Increased max activities from 15,000 to 30,000 (suggested by murad). Also, increased max time constraints from 30,000 to 60,000 and max space constraints from 30,000 to 60,000.
· Added a partial Sinhala translation (only the main menu), by Achini Duisna.
· Updated the Indonesian translation, by Nirwan Yus.
· Very rare crash bugs fixed.
· Code cleanup.
April 1st, 2010· Corrected a generation bug (probably very rare, it gave impossible timetable). Bug may have appeared if using constraints students (set) early with max beginnings at second hour >= 1 and generating on a locked file.
· Increased maximum number of teachers, subjects, rooms and buildings to 6000 (they were 3000 previously).
· Corrected some HTML minor problems, by Volker Dirr.
· Added a new sample file, by alfaromeo (from Morocco). This user also describes tricks to use official FET for Moroccan schools.
March 22nd, 2010· Updated to Qt 4.6.2.
· For constraints students (set) min hours daily is now possible to allow empty days (in advanced usage) - suggested by Horatiu Halmajan and Catalin Maican.
· Added a simple activity planning form, by Volker Dirr (see Advanced menu).
· Now it is allowed to have 3 constraints of type interval max days per week for each students subgroup or teacher (it was maximum 2 previously).
· Added export of active activities, by Volker Dirr.
· Added Brazilian Portuguese translation (partial, incomplete yet), by Werner Bruns and Frank Martin.
· Added Danish translation (partial, only the main form and a few other forms), by David Lamhauge.
· Improved a bit the memory consumption.
· The tables contain now an -x- (lowercase) if the teacher/students set/room is not available and -X- (uppercase) for a break (suggested by George Miliotis). Also, you can configure separately if you want breaks displayed and/or not available displayed.
· Removed some useless messages, improving speed for some rare cases under GNU/Linux operating system and similar.
· Added a few new sample files (by Christoph Schilling, Horatiu Halmajan and aliponte).
· Changed default language/locale to en_US (instead of en_GB, which is non-standard).
February 5th, 2010· Crash bug fix for a rare situation, in which you have constraints (sub)activities preferred starting times or time slots and they refer to no activity
January 30th, 2010· Updated to Qt 4.6.1 .
· Minor interface improvement: since a person reported he accidentally removed the basic constraints, it was added additional user confirmation for this, and more user information.
· Corrected a possible compiling crash bug under MinGW (this is not a FET bug, it is a MinGW bug). It was made a hack to overpass this bug.
· Improved export of timetable as CSV, by adding the id-s of the activities
January 11th, 2010· Added Ukrainian translation (by Andriy Melnyk).
· Bug fix: when modifying the number of students in a students set, the related activities will show the correct number of students, but the generation will consider the old number of students until the user saves and loads again the file.
· Bug fix when adding/modifying a group's/subgroup's number of students, now all groups/subgroups with same name will have the same (new) number of students.
· Improved speed of loading for large files and blocked user input while loading a larger file, because otherwise the user could obtain an incomplete file (minor bug reported by Volker Dirr).
· Minor interface improvement: when exiting FET and choosing Save file, if you press Cancel, FET will not exit anymore - reported by Soyeb Aswat
· Minor interface improvement: added a shortcut button to advanced functions in Time shortcuts section.
· Minor leak fixed (when removing a group or subgroup).
· Other minor bug fixes, when removing a group or a year.
December 16th, 2009· Added shortcut buttons on the main form (suggested by more users, especially: daviodan, Massimo Mancini, Paolo Cataldi). They can be deactivated from Settings - Interface menu
· Increased max activities to 15,000, max days per 'week' to 35, and other limits, and improved memory management. Now you don't need to have much virtual memory and memory usage is lower. This better memory management may bring a small slowdown of the generation, although in rare cases the new version may be faster. Speed variation depends also on the platform. More details about the possible slowdown: I compared times by starting parallel generations with the same random seed, which produces the same timetables in identical steps. I noticed usually less than 10% increased generating time, but in rare cases for some unusual files a bit more, maximum 17%. From the official examples, the worst situation is for the file Hungary/Bethlen/2007-2008-difficult/Bethlen_2007_2008.fet, with about 17% slowdown from FET version 5.11.0 to FET 5.12.0. I apologise for this "downgrade" of speed, but it is necessary
· Updated to Qt 4.6.0
· Improved add activity dialog, by Volker Dirr: if in activities dialog, you select a filter and then try to add an activity, the values in this filter will be selected in the add activity dialog (this was also suggested by daviodan)
· Minor interface improvements
· Changed help management (added links to online help)
· Corrected/updated translations
· Code cleanup
November 5th, 2009· Updated to Qt 4.5.2
· Converted all dialogs to Qt 4 Designer files - suggested by George Miliotis. Compilation time is now shorter and intermediary and executable files are smaller.
· Added constraint teacher(s) min days per week (suggested by several users).
· Added constraint teacher(s) or students (set) for an activity tag maximum hours daily (suggested by several users). It is not perfect and must be enabled from settings menu.
· Added constraint students (set) max gaps per day. It is not perfect and must be enabled from settings menu.
· Very rare crash bug fix
· Constraint room not available times permits now multiple constraints for the same room (so, you can use multiple constraints with different weights and preferences for the same room).
· In add/modify activity and modify subactivity dialogs, the students are displayed in a tree-like structure
· In all constraints dialogs, added a nice filter
· Changed name of constraint: MinNDaysBetweenActivities becomes MinDaysBetweenActivities.
· Added a count for activities list and constraints list.
· The constraints with tables now contain an X (nicer look), also centered nicely, and they have colors (which can be enabled in settings)
· The timetables view forms now center text in cells.
· Many other minor interface improvements.
· Rewritten the Catalan translation. It is very complete, check it out.
· Added a new Greek sample file
· Updated and improved Persian translation
· Dropped !DOCTYPE FET tag in the .fet files - following general recommendations, and changed FET tag to fet tag. Of course you can open older files.
· Improved activities simple description
· Added possibility to save the highest stage timetable
· Added a new Romanian sample file
· Updated translations: Russian, German, Romanian, Italian, Spanish.
· The timetable view dialogs now have resizeable widgets (you can drag the sections with the mouse
August 24th, 2009· Added 2 new constraints: three activities grouped, max days between activities (suggested by Zsolt Udvari).
· Improved the names of constraints: "2" activities grouped, ordered and consecutive are now "two" activities grouped, ordered and consecutive.
· Code cleanup.
· Added a new Italian sample file, by Marco.
July 21st, 2009· Speed improvement if user has constraints activities same starting time, 2 activities consecutive and 2 activities ordered and activities not overlapping. In some cases, the speed improvement is very high. This has to do with the initial ordering of the activities.
· Other minor speed improvements
· Added a Persian manual
July 12th, 2009· Speed improvement if user has constraints activities same starting time
· Added possibility to print activities with same starting time in the html timetables
· Modified the main menu arrangement of constraints
· Crash bug fix (very rare, if user pressed cancel immediately after hitting generation start in timetable generate dialog)
· Added another sample file
July 2nd, 2009· Leaking bugs fixed (closed Qt widgets were not removed)
· Bug fix in generation algorithm. This bug is not seen in practice, but the code in generate.cpp was incorrect in a minor portion. Specifically, it corrected tests done when the user has constraints of type students early max beginnings at second hour, without max gaps per week for students, with max or min hours daily for students
· Added constraint teachers max days per week (suggested by Marco Barsotti)
· Made the results directory customizable (user can choose it) - suggested by Massimo Mancini. Important: under Windows, the default location is not the usual one, but $HOMEfet-results (C:Documents and Settingsusernamefet-results or C:Usersusernamefet-results)
· Fixed a bug: if user deactivated some activities, in some cases he could not generate a timetable (if using preferred times for (sub)activities)
· Added a filter in add and modify dialogs constraints activities not overlapping (suggested by Yush Yuen)
· Added a new feature in the timetable generate dialog, which allows you to see the time when the highest number of activities was placed (suggested by Yush Yuen)
· Added a Catalan translation of the manual, by Joan de Gracia
· Changed the name of the html timetable files
· Corrected many translations' layout (by Liviu Lalescu)
· Added a new test for inconsitency for indirect links between constraints actvities same starting time (suggested by Silvia)
· Minor improvement - in students statistics menu, user can select to view complete structure (duplicates enabled) or canonical structure
· Interface improvement - dialogs when removing the constraints or adding them are improved, so that they are not very large for large constraints
· Selection mode in constraints not available and preferred slots is improved - you can click table header (suggested by Massimo Mancini)
· Minor other interface improvements
· Export warns if existing files (suggested by Angela)
· Changed directory of sample inputs to 'examples'
· Added a 'Related' checkbox in activities and subactivities dialogs (suggested by Bingen)
· Speed improvement in some precomputing situations (not in generation)
· Improved size for constraints with combo boxes of very large activities (suggested by Bingen)
June 2nd, 2009· Added the Russian translation (incomplete)
· Added the Persian translation (incomplete)
· Minor bug fix by Volker Dirr - highlighting the same teacher or student set, for html level >= 5, did not work correctly for advanced statistics export.
· Improved compilation time and memory consumption by modifying the data reading and parsing routines (additional checking/tests needed here).
· Minor memory leak fix (normally, not noticeable).
· Minor interface bug fix (description of constraint teacher max gaps per day displayed incorrectly information about the gaps, writing "per week" instead of "per day").
· Modified the order of search for translation files (firstly in current directory, then in current directory/translations, then, under Unix-like, in /usr/share/fet/translations).
April 10th, 2009· Added constraint activity tag preferred room(s) - suggested by Horatiu Halmajan and Catalin Maican
March 20th, 2009· Crash bug fix when importing activities.
· Improvements and corrections in the import filter.
March 2nd, 2009· Improved a situation for fixed timetables which were impossible sometimes (reported by Horatiu Halmajan).
· Improved the html timetables by Volker Dirr.
· Crash bug fix for constraint min gaps between activities with weight below 100%.
· Bug fix in students early constraint - not critical bug.
· Updates in Arabic translation.
February 16th, 2009· Added multiple activity tags for a single activity.
· It is now possible to edit a single subactivity.
· Added constraints teacher(s) or students (set) activity tag max hours continuously (to specify that a teacher or a students set must have maximum n hours continuously for an activity tag)
· Improved a bit the memory consumption.
· To avoid Windows problems with very large filenames, the sample file names were shortened.
· Minor html timetables corrections (cosmetic).
· Updates in Spanish, Arabic, Romanian and Italian translations.
January 27th, 2009· Minor improvements (code cleanup) - modified a bit the xml files to contain for boolean variables only true/false values instead of yes/no (following xml format recommendations).
· Minor improvement: the constraint activity preferred starting time must have now the day and the hour both specified, so there is a clearer distinction between preferred starting time and preferred starting times.
· Minor improvement - when reading some kind of invalid data, instead of crashing, now FET reports the error (like for instance duplicate teachers, or subjects, or wrong tags).
· Minor improvements in the Italian, Arabic and Spanish translations.
· Added a sample file from Azu Boba.
· The index.html links now open in the same window
December 18th, 2008· nor improvements (the settings are now saved in a file which does not contain spaces under GNU/Linux, added a better #define Q_OS_WIN for detecting Windows in compilation).
December 8th, 2008· Minor interface improvements
· (Command line version now has the parameter "htmllevel", the old one was "timetablehtmllevel", which still works. Added description in the README file of the default values. Other interface improvements).
December 2nd, 2008· Added constraint 2 activities grouped, which is the non-oriented version of constraint 2 activities consecutive (the activities can be placed in any order, but one near the other)
· Added an additional test to ensure that constraints same starting time are not impossible
· Very minor bug fixes (when working with redundant constraints same starting time/day/hour). This bug is most probably unnoticed.
· Added an additional sample file
November 25th, 2008· Switched to Qt 4.4.3
· Added a user's manual
· Spanish translation update
· Added an additional sample file
November 12th, 2008· Modified a bit the spreading activities dialog, now the activities split into 2 and 3 not in consecutive days is by default NOT checked, because this might lead to impossible timetables for difficult files. If you want spreading for these activities, you need to manually select this option.
· Arabic translation update
October 13th, 2008· Added 2 more samples by Cristian Balint
· Small bug fix in statistics exported as html, by Volker Dirr
October 7th, 2008· Added an option to remove redundant constraints
· Added exporting of advanced statistics as html by Volker Dirr
September 30th, 2008· Added an advanced command to spread better the divided activities in a week - very useful for schools and high-schools, probably.
· Minor interface improvement (in report duplicate activities routine)
· Added status bar for File -> new, open, save and save as menus
September 23rd, 2008· Improved Arabic, Italian and Lithuanian translations
· Improved a very very rare situation
· Added possibility to mark or not with -x- the not available slots in timetables
· Added all activities timetables
· Added exporting of timetable in csv form
August 25th, 2008· Crash bug fix (probably rare)
· Improved the html timetables by Volker Dirr (added an -x- in the not available slots in teachers', students' and rooms' timetables and other improvements)
· Added Lithuanian translation (incomplete yet).
August 18th, 2008· Added constraint teacher(s) and students (set) interval max days per week, to specify an hourly interval and the maximum number of days per week for teachers (students) to work in this interval. This constraint is very useful, for instance specify that teachers and students must not work more than 2 times per week in the last hour of the day.
· Added constraint a set of activities end students day - to specify for a group of activities that they should end the day for students (for instance for meetings with the class master).
· Bug fix - when modifying a constraints (sub)activities preferred starting times or time slots, the activity tag is now correctly updated.
August 9th, 2008· It was fixed a crash bug fix (probably very rare).
· Added possibility to change easier more constraints min n days between activities
· Added constraints subactivities preferred time slots and subactivities preferred starting times. You can specify the component number for subactivities, useful for constraining courses, say only the first or the last components of a split activity to be placed earlier.
· Switched to Qt 4.4.0 and gcc 4.3.1
· Indonesian, Romanian, Italian, German translations updates
July 20th, 2008· Added import/export CSV (text with comma separated values) filters by Volker Dirr.
· Added constraint min gaps between activities (suggested by several users).
· Add activity dialog, checking/unchecking show years/groups/subgroups does not erase inserted sets
· Added Romanian help for export/import by daviodan.
July 2nd, 2008· Added constraint activity(ies) preferred STARTING times, the old preferred times constraints are renamed preferred time slots and are more correct now, taking into consideration the duration of each activity
· Allowing more constraint activity preferred starting times (or preferred time slots) for same activity id, which was restricted by a bug to only one. You can add more constraints with different weights.
June 19th, 2008· Bug fix - when saving a timetable, regenerating it might give an impossible timetable - reported by Yush Yuen.
· This bug solved other possible important bug (I doubt someone observed this bug. What happens: if an activity has a fixed time, then when FET allocates it it fixes a room for this activity and consequent changes are not possible to reschedule this activity to another room - might give impossible timetable in extreme cases). Now it is possible to reallocate the room to another slot.
· Improved add activity dialog - if min days is x (greater than 1) and weight is lower than 100.0%, user can add a second constraint with x-1 min days, to ensure activities are better separated.
· Added advice to remove redundant min n days constraints when adding same starting time constraints.
· Added another sample by Yush Yuen.
June 12th, 2008· Bug fix - now inactivating some activities allows to generate the timetable, because constraints referring to these activities are ignored
· Improvement - activating/deactivating activities for a year/group considers also the activities of included groups/subgroups
· Added 3 more samples (from Namibia)
· Arabic and Greek translations updates.
May 29th, 2008· Arabic, Romanian, Spanish, Italian translations update.
· Added an option to select all slots available or not available for constraints break, not available and preferred times.
April 17th, 2008· Very small bug fix (very unlikely to happen, also the effect is almost null)
· Indonesian, Spanish and Arabic translation updates
· Added an additional check for inconsistency
April 7th, 2008· Greek, Romanian, Spanish translations updates
· Small interface improvements
· Added constraint 2 activities ordered, to allow to say: activity A2 must be after A1, separated by any number of days or hours
· Added constraint teacher(s) max hours continuously
· Added constraint students (set) max hours continuously
· When modifying a constraint min n days between activities, it checks for duplicates
· Crash bug fix (rare, if using home rooms with weight under 100% and rooms are constrained)
· Added more tests to ensure home rooms inputted correctly
· Generating multiple now saves each timetable in .fet form
· Increased number of days per week to 28, to allow exam scheduling
March 31st, 2008· Crash bug fix - when adding a year with same name as a group or subgroup
· Small interface improvements
· Added checks to ensure that duplicate students sets are reported
March 25th, 2008· Small improvements in the interface.
· Updated German and Indonesian translation.
· Possibility to save current timetable in .fet form, with activities locked on their places.
March 11th, 2008· Constraints students early max beginnings at second hour (to allow say at most 2 beginnings at second hour for students in a week)
· Constraint students max gaps per week
· Constraint teachers max gaps per day
· Constraint students set home room(s)
· Constraint teacher home room(s)
· Constraint max building changes per day/week for students/teachers
· Constraint min gaps between building changes for students/teachers
· Constraint activities same starting day
· Matrices constraints of unavailability for teachers, students, breaks and rooms
· New feature: buildings
· New feature: command line version (without GUI)
· Subject tags are now named more correctly activity tags
November 15th, 2007· Faster precalculation
· Significant speed improvement in saving html timetables
· Subjects timetables
· Increased max students sets to 15000.
· Faster statistics for students.
· More allowed subgroups and teachers per activity.
· Added more redundant tests to check final solution to respect no gaps, early, max gaps, min hours daily
October 30th, 2007· Groups and years timetables contain dashed lines in cells which contain more activities
· Arabic translation update
October 19th, 2007· Small bug fixes in html generated timetable
· Indonesian translation
· Italian translation
· Arabic translation update
October 10th, 2007· Improvement in generation, now retrying 100,000 times before giving up for a specific activity, works even if activity has preferred times with high weight on impossible slots (the idea is that if you have constraints activity(ies) preferred times for impossible slots with weight under 100%, you will get eventually a timetable which contradicts these constraints and is viable).
· Greek translation
October 1st, 2007· minimal cosmetic changes
September 24th, 2007· Crash bug fix when using teachers max gaps for only some of teachers
· The new features are: adjustable weight for teacher(s)/students (set) max hours daily and new constraint teacher(s) min hours daily
September 19th, 2007· Small changes in add/modify activity dialog
· Small changes in Settings menu
· Added timetable html level by Volker Dirr (you can select a level from 0 to 5, each with additional options, where level 5 has for instance highlighting of similar fields when moving mouse over text)
· Added additional tests to check for impossible constraint min n days between activities
· Added possibility to change all min n days constraints' weight by a single command
August 14th, 2007· The new version also uses far less memory (it should be a few tens of MB).
Find us on Google+
