Mount.&.blade.ii.bannerlord.v1.5.8.263439.gog.p...

AI kingdoms became slightly more rational about declaring war when already fighting multiple fronts.

Since you mentioned a specific file string format, if you are looking for help with a technical issue or installation for this specific version, please let me know! Mount.&.Blade.II.Bannerlord.v1.5.8.263439.GOG.p...

If you need a summary of what changed in this specific build: AI kingdoms became slightly more rational about declaring

Improvements to memory usage and crash fixes specifically for the GOG build. 3. Installation / Troubleshooting Context If you are trying to play with mods

Introduced as a standalone way to play without the "Dragon Banner" questline.

Rebalanced how long it takes to turn captives into loyal soldiers.

If you are trying to play with mods , many older mods were built specifically for v1.5.8, which is why some players still keep this exact version installed today.