The version number "v10370409" likely refers to a specific patch or update for Diablo II: Resurrected. Blizzard frequently releases patches to fix bugs, balance gameplay, and add content. However, without specific release notes or details from Blizzard, it's challenging to provide what changes this version includes.
It sounds like you're looking for information or a guide regarding Diablo II: Resurrected (D2R) specifically for version 1.0.3.70409