HoMM3 HD - Releases and updates.

Hello! Please help me. I can't find where to download the updates for Heroes 7. I currently have version 1.0.8767.0. It keeps crashing to a black screen, or saved games won't load and the game kicks me out. The game itself starts, and I can start a new map. I'm tired of reading forums; I don't really understand anything. I can't find the updates (you call them patches). For me, all of this is "complicated and unclear." Maybe someone can help?