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

After reading this message:

Message from Medium_HP P.S. When recreating an online game without restarting, the timer continues to tick while waiting for an opponent. It doesn't really interfere, but it's probably not how it was intended.

For some reason, I remembered that it was specifically about SoD+HD and the implementation of a chess timer in HD, although in reality, it was about VT with HD. That's why I lost interest in reading about further updates in HD, assuming that HD was heading down the wrong path (IMHO). I didn't bother looking at version 3.0.

The message was indeed about SoD+HD, and VT is not to blame.