For me its version 29.1.5 . I play through the itch app, assuming that means itch client, and theres still no indication other than the home store page that it has been updated. If im supposed to download the .exe file then how do i update without losing current progress? (For future reference)
It's pretty complicated, since we don't have official support for itch client.
Either it saves the save files just like the regular game would (%APPDATA%\Roaming\RenPy\ACADEMY34-v0.2.3) or it saves them in some sort of special itch folder (%APPDATA%\itch\apps).
You can try downloading the latest public release without using the itch app and check if the game will automatically find the saves.