Hey there! 
Today we’ve published the second release candidate v1.3-rc2 with the final fixes for a v1.3 to replace v1.2.40 and avoid as many surprises as possible (as we know that switching from v1.2.40 to v1.3 might bring some problems).
A list of changes in this v1.3-rc2:
- Play subtags + repeats by default. Now playback options are accessible through Frame > Playback submenu
- Added pixel-art Cyrillic script and Maltenese Unicode chars #3699 t/4078 t/1851
- Added ability to press a mnemonic key (e.g. Y or N) without modifiers in alerts
- Added frame duration warnings saving animated GIF files #1504
- Allow recovering sessions from previous Aseprite versions #3727
- Fixed regression pasting images outside the canvas limits #3725
- Fixed rotation inaccuracy with 90°, 180° or 270° degrees #3041
- Fixed 8 Connected Fill escapes grid with “Stop At Grid” checked #3564
- Now New Palette from Sprite creates colors when alpha is less than 16 #3715
- Removed the marching ants effect from Timeline after paste t/3941 t/5038 t/17281
- Fixed avoid changing grid settings from Edit > Preferences if they aren’t modified #3479
- Fixed grid misalignment when zooming out #3638 t/16566
- Fixed a rendering bug using Loop through tag frames option in Onion Skin #3739
- Fixed crash right-clicking play button if the preview window is hidden
- CLI: Fixed bug saving tags in file sequences using
-save-as "{tag}_1.png"t/17253 - Lua: New Plugin:newMenuGroup() and Plugin:newMenuSeparator() to organize plugin submenus #3731
- Lua: Added KeyEvent.repeatCount api#95
- Lua: New opacity/blend mode parameters in Image:drawImage()
- Lua: More changes
- Several other crash fixes and minor UI issues