v3.24 (18.6.2024)
* Adapted to and built against latest custom framework (which removes the useless and potentially counterproductive 1-second wait at startup).

v3.23 (24.4.2024)
* Built against latest custom framework.
* Touched up manual.

v3.22 (23.4.2024)
* Built against latest custom framework.

v3.21 (7.1.2024)
* Built against latest custom framework.

v3.20 (20.12.2023)
* Replaced Nebulus' card with Ring around the World's.
* Fixed a stray pixel in Bubble Dizzy's card.
* Built against latest custom framework (which ensures that the system MMU setup does not interfere).
* Touched up manual.

v3.19 (23.6.2023)
* Changed contact email address.

v3.18 (13.6.2023)
* Built against latest custom framework.
* Fixed/improved backstory in manual.

v3.17 (31.7.2022)
* Touched up manual.

v3.17 (2.5.2022)
* Built against latest custom framework (which features a more robust startup code and a few little optimizations).

v3.16 (19.8.2021)
* Built against latest custom framework (which, in the startup code, fixes a recently-introduced memory leak and replaces a piece of unreliable CIA-access-based delay code with machine-agnostic code).

v3.15 (14.8.2021)
* Added sound effects.
* Improved further outer antialiasing of characters on cards.
* Made a few little optimizations.
* Built against latest custom framework (which makes startup and cleanup more robust and has a bugfix).
* Changed audio mode toggle key from [M] to [A].
* Updated manual.

v3.14 (1.8.2021)
* Adapted to Amiga CD³²: added saving through nonvolatile.library when writing to disk fails; allowed pausing, aborting and name entering by means of the joypad; added CD ISO image to distro packages.
* Reworked controls (see manual).
* Added controls information to pause screen.
* Added cards numbers to the back of face down cards (which helps with matching cards).
* Straightened cards corners, to match better the overall sharp look of graphics.
* Fixed bug that caused the EXTRA JOYSTICK option to be highlighted shortly after returning from the "about" screen.
* Made several optimizations.
* Adapted to and built against latest custom framework (which makes startup and cleanup more robust and has a couple of bugfixes).
* Fixed/improved/added outer antialiasing of graphics on all cards (trying to stay faithful to the original design).
* Touched up a few cards.
* Reduced and partly eliminated bass notes clicking.
* Made various other minor changes.
* Improved manual.

v3.13 (26.6.2021)
* Fixed a (seemingly innocuous) bug (an OR instruction in place of a MOVE instruction) in card matching code.
* Improved card matching policy by considering it a mistake also when the second card flipped had already been flipped before, even if the first card has been flipped just once and/or its twin card has not been flipped yet.
* Made a couple of tiny optimizations.
* Changed design of 'M' and 'N' letters (they were basically lowercase, which was inconsistent, as the only lowercase letter was supposed to be the 'e' in "MeMO").
* Changed alignment of logo in menu screen by 1 pixel right/down.
* Adapted to and built against latest custom framework.
* Reworked game icon.
* Added floppy disk and manual icons.
* Improved/extended manual.

v3.12 (skipped by mistake)

v3.11 (1.6.2021)
* Fixed bug (introduced by the previous update) that allowed both players to point the same card at the same time.
* Built against latest custom framework (which makes the startup and cleanup more robust; these last changes did not make it to the previous update by mistake).
* Improved manual slightly.

v3.10 (29.5.2021)
* Built against latest custom framework (which makes the startup and cleanup more robust).
* Removed some leftover code that caused the program directory to remain locked.
* Added support for joystick in mouse port.
* Reworked/extended menu.
* Touched up hiscores graphics.
* Changed design of 'G' character.
* Made a few minor changes/optimizations.
* Added a new old-style 4 color icon (the previous one was accidentally deleted with the previous update).
* Improved/extended manual.

v3.9 (26.6.2020)
* Built with the P61 flag p61exec set correctly (i.e. 1; before it was set to 0, and that caused music not to play on systems with the CPU vbr register pointing to a location other than 0).
* Avoided saving of the hiscore file when no hiscore is made.
* Moved some data to the code section, thus saving some bytes thanks to the PC-relative addressing modes.
* Made a little improvement to the startup routine.
* Fixed/improved manual.

v3.8 (24.11.2019)
* Fixed/improved music.
* Updated P61 code with the latest version (P6112).
* Replaced TV Sports: Football's card with SkillGrid's.
* Added old-style 4 color icon.
* Fixed/improved manual.

v3.7 (14.6.2018)
* Fixed graphical glitches when entering the player's name (the background might be restored wrongly due to a missing Blitter wait and the cursor sprite was not visible due to a .l in place of a .w).
* Printed some texts in yellow or orange instead of red, as that gives a much better result with RF/composite video out.
* Changed style of name/logo ("MeMO" instead of "MEMO") to recall the original one.
* Improved look of commas.
* Improved startup and cleanup procedures.
* Made ~20 kB smaller.

v3.6 (23.11.2017)
* Made music stop during pause.
* Removed debugging leftover that printed a row of pixels at the top left of the pause screen.
* Fixed right side of the "DIGGERS" card (the rightmost column of pixels was black).
* Touched up playback volume of two samples in the in-game music.
* Touched up "about" screen.
* Built against latest custom framework.

v3.5 (14.4.2013)
* Updated RETREAM logo.

v3.4 (13.5.2012)
* Made various minor changes.

v3.3
?

v3.2
?

v3.1 (3.3.2012)
* Fixed tilt string address reference (could cause crashes).
* Fixed version string.
* Ensured that the CIA-based interrupt handler never gets in the way of the graphics update (under some particular circumstances, it could cause the skipping of a frame).

v3.0 (13.3.2011)
* Reworked the Quick Edition so much that a new game was born - this time, though, the name tag was dropped altogether.

v2.6 (8.2.2021)
* Made various little improvements/optimizations.
* Adapted to latest custom framework.

v2.5 (3.4.2011)
* Adapted to and built against latest custom framework.

v2.4 (27.2.2005)
* Updated the text of the information screen.
* Built against latest custom framework.

v2.3 (1.11.2004)
* Fixed corruption of graphics due to bad allocation of memory for the information screen.

v2.2 (22.9.2004)
* Added mouse control option on request.
* Included the Original Edition in the DOWNLOADS page.

v2.1 (17.9.2004)
?

v2.0 (27.11.2003)
* Reworked the Original Edition so much that a new game was born: MeMO Clippled Edition ("Clippled" = "Clean"+"Crippled"). However, development proceeded so quickly that it was replaced very soon by the Quick Edition.

v1.10 (14.8.2021)
* Made various little improvements/optimizations.
* Adapted to latest custom framework.

v1.9 (4.3.2011)
* Adapted to and built against latest custom framework.

v1.8 (23.9.2004)
* Fixed charts creation.
* Removed directory changing.
* Updated documentation.

v1.7 (6.11.2003)
* Made startup and cleanup more robust.
* Optimized blitting routines (both speed- and memory-wise).
* Changed some graphics.
* Rewritten texts.
* Changed introduction music and removed sound effects.
* Reorganized data.
* Added auto-generation of charts in case of missing "ranks.dat" file.
* Made lots of other internal changes.
* Revised documentation.
* Revamped icons.
* Appended to name "OE" tag, which stands for "Original Edition".

v1.6 (14.6.2003)
* Adapted to and built against latest custom framework.

v1.5 (24.4.2002)
* Adapted to and built against latest custom framework.
* Renamed some files (internal only).
* Changed slightly documentation.

v1.4 (28.4.2001)
* Added version string.
* Adapted to and built against latest custom framework.
* Re-organized a bit the directory structure and changed some file names.
* Touched up documentation.
* Substituted icon with a brand-new coloricon.

v1.3 (8.10.1999)
* Adapted to and built against latest custom framework.

v1.2 (??.??.1998)
?

v1.1 (??.??.199?)
* Made some minor fixes.
* Adapted to and built against latest custom framework.
* Touched up documentation.

v1.0 (14.9.1997)
First release.