Here is the information regarding the Baldur's Gate 3 Update v4.1.1.3630146-RUNE.
If you possess the base RUNE release of Baldur’s Gate 3 (usually version 4.1.1.3624901 or earlier), use this guide to apply the update. Baldurs Gate 3 Update v4.1.1.3630146-RUNE
(which added new subclasses), Hotfix #2 improved the "logic" of the game's world: Patch 8 - BG3 Wiki Here is the information regarding the Baldur's Gate
While v4.1.1.3630146 was a vital early hotfix, it was followed by several massive updates. For players looking to keep their game current, the final major update for Baldur's Gate 3 is Patch 8, which launched on April 15, 2025. This final update introduced: 12 New Subclasses: One for each of the core classes. which launched on April 15