A timeframe consistent with major v1.2 updates or hotfixes following the game's console expansion.
If "17-12..." refers to a date of edition (), it likely points to: Mount and Blade II BannerlordData edycji: 17-12...
October 25, 2022, on PC (Steam, Epic Games Store, GOG), PlayStation 4, PlayStation 5, Xbox One, and Xbox Series X/S. A timeframe consistent with major v1
Polish gaming sites like Gry-Online frequently update their game encyclopedia entries around this time of year to reflect year-end patches or holiday sales. it likely points to: October 25
Released in late 2023, this update brought major features like weather effects (rain and snow), troop targeting AI, and the "Cheat Menu" for consoles.