From snapshot 140:
Fix Saves/ appearing before all saves in local save browser
Make FPS update less often in HUD
Fix blue line in smudge tool texture
From snapshot 139:
Fix scrolling being inversed in the save / stamp browsers
From snapshot 138:
Fix issues with scrolling
From snapshot 136:
Upgrade to SDL 2
This is a major upgrade, which greatly improves video and input handling
Add "resizable window" option. Turning this setting on may make TPT look a little blurry
Fullscreen is now instant and no longer changes your screen resolution. The option to use old fullscreen is still there
Redo text input handling. This will allow for unicode input soon
The redone input handling breaks most Lua scripts which listen for key events, such as tptmp. There is no replacement text input API at the moment
Improve screen size detection, now checks the correct monitor and accounts for the taskbar
From snapshot 135:
Fix error messages when adding tags and loading / creating saves being corrupted
Fix FIND mode turning off when selecting elements
...
View the full changelog
here.