|Submitted: Dec 27 2007|
Updated: Jun 18 2014
The Mnemosyne software resembles a traditional flash-card program to help you memorise question/answer pairs, but with an important twist: it uses a sophisticated algorithm to schedule the best time for a card to come up for review. Difficult cards that you tend to forget quickly will be scheduled more often, while Mnemosyne won't waste your time on things you remember well.
Mnemosyne 2.3.1 : 2014-06-18
(Note that for Windows users we recommend uninstalling the previous version
before installing the new one.)
-Change database backend for config file. There should be no more errors
which cause you to delete the config file.
-Don't import cherrypy if not using the sync server (workaround for mimetype
bug in non-unicode systems) (reported by Steven Lee, Pete Kovalenko).
-Don't give spurious warning about different tags in different sister cards
when creating new clozes when editing a card (reported by Scott Youngman).
-Fixed some issues with tabbing to buttons in a dialog not selecting the right
button (reported by Scott Youngman).
Mnemosyne 2.3 : 2014-04-15
The sync protocol has changed in this version, so make sure you update both the client and the server at the same time.
-A quick-and-dirty Android client is available, where you can do reviews in your mobile browser using a webserver which runs on your Android device.
This client has full support for the syncing protocol.
-The functionality of mnemosyne-webserver has now been merged into the main program and can be activated through 'Configure Mnemosyne - servers'.
-Time to create backups has decreased, in some situations even by a factor of 2 or more, speeding up syncing and program exit.
-Sped up all editing operations in the card browser.
-The name of the currently active saved set of cards is now listed in title bar (requested by Silverbear).
-Added new statistic: number of new cards learned per day.
-Also sync relevant settings (e.g. fonts, colours, ...) during the initial sync.
-Improve the timeout handling of the sync protocol.
-New Ukranian, Swedish, Serbian, Catalan translation.
-Fix erroneous 'Wrong username or password' error.
-Rework error handling when trying to load a database which no longer exists in its previous location.
-Keep the sort order in the card browser when editing cards (reported by Gnome and Tristan).
-Added command line options --sync-server and --web-server which starts the sync and the web server in headless mode (i.e. without a GUI) (useful to run e.g. on a NAS server).
-Fix more errors coming from loading config files (thanks to Alex Fevery for reporting this).
-Added an extra popup to guide new people better through the learning process (feedback from Bjorn Maes).
-Fix crash when exporting to cards format when Latex was not installed (reported by Gwern).
-Make card conversion more robust for badly formatted card (reported by Gnome).
-When editing a card through the browser, make sure the correct set of tags is displayed if sister cards have different tags (requested by Scott Youngman).
-Allow converting a Cloze card to a clone of a Cloze card through the browser (requested by Scott Youngman).
-Instruct people on the correct way to deal with '*.cards' files if they try to open it as a separate database (Kensor0).
-Make it clearer what 'Find duplicates' does.
-Various cosmetic fixes when importing *.cards files (reported by Ansgar Bohmann).
-Fix tag tree sometimes not updating correctly if the user adds a new tag.
-Flash files are now synced as well (reported by heldtfisken).
-When editing a card where different sister cards have different tags, ask if the tags should be applied to the current card or to all sister cards.
-Fix Windows crash when using the card browser with cards imported from Supermemo (reported by Piotr).
-Fix crash when renaming cloned card types through the card browser.
-Make Mnemosyne 1.x import more robust (reported by Jack Thro).
-Don't allow saving the database to a network drive under Windows to prevent corruption (reported by Brendan Sinclair).
-Fix sync error that could occur when adding and immediately deleting multiple sister cards from the card browser.
-Fix latex / cloze interaction corner case (reported by Daniele Parisi).
-Fix corner case of overzealous introduction of media dir in expansion (reported by Toni Alsford).
-Make sure latex images are always in sync when updating text.
-If adding an extra tag when importing a 'cards' file, don't keep the tag 'Untagged' (patch by crcmail0). If you were affected by this issue before, 'compact database' will solve this.
Mnemosyne 2.2.1 : 2013-04-15
-The premade cards from the old 1.x website have now all been converted to the
new 2.x cards format and put on the new website. This will make importing
much easier, as graphics are bundled (thanks to Patrick Kenny for the
-For txt import, a text file can now contain a fourth column which will be
mapped to the 'notes' field of a Vocabulary card.
-When editing or browsing cards, don't reset the state of the scheduler such
that you need to press 'show answer' again or such that a new card appears
(reported by Gnome).
-Remember which tags where expanded/collapsed in the tag tree (requested a.o
by Troy Guze).
-Correctly update flag 'hide pronunciation' in the popup menu (reported by
Tom Cato Amundsen).
-When merging duplicate cards, merge tags also (requested by Stephan Maseizik).
-Fix regression where all the dialogs would have generic names ('mnemosyne')
as opposed to e.g. 'Add cards'.
-Correctly format clozes in latex, e.g. [Lorentz force law]
()requested by acdenh). If you want literal  in latex, use \left[
-Fix crash when converting multiple cards at the same time between e.g.
Vocabulary card type and Map card type (reported by Gnome).
-No longer allow mass converting of cards to Cloze card types, as this
requires editing of the card content for each card anyhow (reported by Scott
-Fix browser crash occuring after deleting a card type which had custom
formatting (reported by Tom Zerlau).
-Unless the 'Prefill tag behaviour' plugin is active, changing card types will
never change the tag you already filled in, even if it's different from the
last used tag (reported by Gnome).
-When changing the font for '', make a more neutral choice
for default font in case currently different card types have different
fonts (reported by Gnome).
-Make sync and sync error handling more robust.
-In case you don't explicitly select a background colour, use your theme's
background colour as opposed to white for empty cards (reported by ialectum).
-The quote key to left of 1 (`) can now also be used as a short cut for grade 0
(requested by Kent Stearman).
-In the card browser, CTRL+F can be used to focus the input on the search
field (requested by abacus).
-Improve the position of dialogs popping up from the card browser,
sync window, ... .
-Fix crash pressing the 'Delete' key in the 'Activate cards' dialog (reported
-When changing card types, only warn about losing history when there is actual
history present (reported by Gnome).
-In case you are not using saved sets and create a new tag whose parent is
inactive, make the new tag inactive too. (If you have a saved set active,
you'll get a dialog box asking whether you want to activate that tag or not,
just like before) (reported by Gnome).
-Fix bug in interaction between Latex system and exporting to the 'cards'
format (reported by Gwern).
-More tweaks for RTL languages like Arabic and Hebrew (bug report by
-No more superfluous empty lines for cards with RTL languages.
-When changing languagues, translate the window title immediately, instead
of after reboot.
-On a Thai system, don't use Thai numerals in the card browser if the language
is set to English (requested by Mark).
-Take time zone information into account when displaying creation date of
card in browser.
-When renaming a saved set, prefill the name field with the previous name of
-Don't reset selected plugin when importing a new plugin (reported by Gnome).
-When trying to deactivate a card type in use, show name of the card type in
the error message.
-Fix CTRL+F shortcut for inserting flash, CTRL+D for inserting video, and
CTRL+C for copying (reported by Gnome).
-Tab key now cycles through all the grade buttons (reported by Gnome).
-Fix grading shortcuts R and W for 'right' and 'wrong' in the cramming
-Backspace and delete shortcuts to delete the current card work again
(reported by Dylan Gordhan).
Mnemosyne 2.2 : 2012-12-04
-Added menu option to detect duplicates in the database.
-Made the cramming scheduler more configurable. Cards can now be studied in
random order, earliest first, lastest first or most lapses first. Also,
you have the option of whether to save the scheduler state or not when exiting
-The way the tag field is prefilled for new cards is changed. By default, the
last used tag is used, regardless of card type. If you want the pre-2.2
behaviour, where the last used tag is remembered per card type, there is a
bundled plugin you can activate.
-When exporting to the 'cards' format, the latex files are now pregenerated
and bundled (requested by Mark).
-Fix errors coming from loading config files (reported by knutflatland and
-Ported missing import file formats from 1.x: SuperMemo7 text, SuperMemo from
Palm, Cuecard WCU.
-Double-clicking on a saved set in 'Activate cards' now automatically selects
the set and closes the window (requested by Michael Campbell).
-Add "Insert Flash" option (Note: Flash needs to be installed on your system
for this to work) (requested by Gnome).
-Added support for video files under Windows (contrary to Linux, they will
play in an external window using mplayer).
-When you have both tags "A" and "A::B", the card browser will now show the
first tag as "A::Untagged".
-In 'edit cards', make more robust of no longer warning about discarding
changes if you did not make any.
-Sped up deleting of large number of cards from the card browser.
-When pasting into the "Add cards" or "Edit cards" dialog, respect the
formatting of the card field.
-Be more robust against importing 1.x cards with missing information (reported
by Chris Resnik and Patrick Kenny).
-Bug fix involving notes with multiple lines with exporting cards.
-Fix bug with picture sometimes not showing when first starting the program.
-Better support for non-latin characters in sound files under Windows (reported
by Raoul Pontecaille).
-Fix crash in 'Compact database' involving too many open files (reported by
-Fix situation where tag pane would be no longer visible after adding a first
saved card set.
-Changing card types and deleting cards from the card browser is now faster.
-No longer convert filenames to lower case on Windows (requested by Michael
-Fix another crash involving duplicates while converting cards (reported by
-When upgrading from 1.x on OSX, explicitly tell the user where their 1.x
data was backed up.
-Fix displaying non-latin characters in statistics (reported by Pawel Szerszon).
-Don't erase fields when cancelling a card type conversion (reported by Gnome).
-Don't allow cancelling the import metadata information dialog.
-Fix harmless error message when converting to Cloze cards in the card browser
(reported by Michael Campbell).
-Upgraded to latest version of Qt/PyQt.
Mnemosyne 2.1 : 2012-09-10
-New import/export format to share cards, which also bundles the media files. Supports importing an updated version of the same exported cards, so that authors can release updated versions of their cards fixing e.g. spelling mistakes.
-Implemented txt export with tab-separated values.
-You can now specify more than 1 tag to add during import(requested by Barbara).
-In 'edit cards', no longer warn about discarding changes if you did not make
-Don't crash card browser when searching for \ (reported by Faemorleto).
-Fix bug where active tags would sometimes not have a checkbox in the card browser (reported by Gnome).
-Fixed issues involving tag renaming and syncing (reported by Barbara).
-Made RTL handling for Arabic and Hebrew more robust.
-audio tags now support start and stop arguments, e.g. will play the sound file from 1 to 2 seconds.
-Fix crash when cancelling duplicate insertion while converting cards
(reported by Gnome).
-Fix crash when renaming saved card sets (reported by Pawel Szerszon).
-Make detection of unused media files more robust with case insensitive
filesystems (reported by Pawel Szerszon and Gnome).
-Fix error when resetting configuration to defaults (reported by Pawel Szerszon).
-Fix for missing Chinese labels in the statistics plots (reported by Bono
-Fix for rare hangs 'assert interval == 0' (reported by Tom Cato).
-Translation fixes when converting between card types (reported by Gnome and Chris Schmidt).
-Make terminology in 'Current card' statistics more consistent with the card
Mnemosyne 2.0.1 : 2012-08-02
-Fix occasional hang during review (Thanks to Scott Youngman and Chris Shanks
for helping to debug this).
-In cloze card types, you can now provide hints, e.g. [cloze:hint] will show
[hint] in the question as opposed to [...]
-Added Sentence card type plugin. If you put this in the 'Sentence' field:
"La [casa:house] es [grande:big]", you'll get three sister cards with the
following questions: "La casa es grande", "La [house] es grande",
"La casa es [big]"
-Fix bug where the wrong clone would be renamed (reported by Herman Gunn).
-Take size of media player widget (Linux only) into account when calculating
the optimal split between question and answer.
-Fixed bug where card appearance settings would not be synced between different
-Fixed issue in Activate cards, where a set without a name and a saved set
-The dialog where you name saved sets is now a combobox which also list the
current saved sets, to allow for easier updating of a saved set.
-Message boxes are now centered over the current window (card browser, ...) as
opposed to the main window.
-Longer initial interval if the first grade you gave a card is 5.
-Fixing card merging losing information on Vocabulary card types (reported by
-Before merging cards, more information is presented on the data that is
already in the database (requested by Stephan Maseizik).
-Fixed spurious firing of missing media detection (reported by Geir).
-Fixed a few bugs when displaying the edit or preview windows from the card
browser and using PgUp and PgDown to move to the previous/next card (reported
by Chris Schmidt).
-When adding a duplicate card, rather than forbidding the user to add it, ask
the user if he really wants to do this (requested by Laurent Humblet).
-The webserver now supports the -d option to specify the data directory
(requested by Sirius533).
-Fixed crashes in card browser with non-latin clone names (reported by Gabriel
-Prevent uninstalling a card type plugin if a clone of that card type has been
created, even if it does not yet have any cards.
-Further fixes for Hebrew (reported by Eliyahu Switzer and Chris).
-Upgraded many of the libraries on which Mnemosyne depends (PyQt, numpy,
-Updated user contributed translations.
Mnemosyne 2.0 : 2012-06-16
After 4 years of work, we're happy to present Mnemosyne 2.0, a complete rewrite.
Full changelog: http://www.mnemosyne-proj.org/news.php
Vote for new features: https://mnemosyne.uservoice.com
Developer's diary: https://plus.google.com/112456861177827156549