HoMM3 HD - Releases and updates.

3.20 -> 3.21 (12/09/2012)

General:

[-] In the hero exchange window, moving a single stack of creatures from one slot to another slot of the same hero functioned as moving to another hero (a single unit remained in the slot, the rest of the creatures were moved).
[-] Moving the mouse in the kingdom overview window had a very small chance, but still could crash the game.
[-] Bug (present in the original as well): the display of the cursor shadow in battle was disrupted. Now it is no longer disrupted under any circumstances.
[!] The fix for the synchronization of new network game settings between the host and connected players has been removed (as it was a source of bugs).
[+] In a network game, the host in the new scenario window now has some buttons disabled until another player connects (to prevent the host from taking actions that lead to desynchronization – beginners often have problems with this).
[!] The mechanisms for setting memorable Random Map Generator (RMG) settings and difficulty levels have been reworked: settings are no longer lost, and any potential bugs related to this feature have been eliminated.

[+] Built-in updater (optional check for mod updates each time the game is launched, manual update check, update).
- No need to track the release of a new version of the mod online;
- When updating, only the necessary files are downloaded (usually around 500 KB), not the entire mod.

HD+:

[+] When loading protected saves/maps in single-player or hotseat, the required colors are automatically marked with checkmarks.