PCSX2, the open-source PlayStation 2 emulator, released version 2.5.399 today. This update primarily integrates rcheevos 12.2.0, an updated version of the RetroAchievements library. The rcheevos component provides functionality for users to earn custom achievements while playing PlayStation 2 games within the emulator. This update ensures PCSX2 maintains compatibility with the latest achievement definitions and improvements from the RetroAchievements project.