HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

Well, the folder is still named after the initial generation (if you didn't figure it out, the first 6 digits in the name are the date).

I just started using it, haven't looked into it yet. I checked – the date is set to the start of the game, not the save, so there won't be a problem with the first game in several folders. Your format is definitely more convenient, but I still think the generation number (1, 2, ...) is simpler and more convenient.

Added after 2 hours 56 minutes
And how do I find the save in the directories and how do I manage the new save method?
It's a silly question, but the fact that there's no description on the official website is already a problem.

Added after 18 hours 23 minutes
The game doesn't see the directories and saves in them.

*I finally found a solution – UI.Ext.ScenarioMgr.Folders = 0. But my opinion remains the same – this should be in the description, not in the changelog. Although I could have looked more carefully at default.ini myself.