.changelog/3541.md
retroAchievements CoreCapability — New capability flag (CoreCapability.retroAchievements) declared in PVPrimitives, allowing cores to advertise RetroAchievements live-tracking support in the smart core selector UI. Displayed with a trophy SF Symbol.PVCapabilities array (highAccuracy, cdAudio, subChannelAudio, multitapSupport, lightgunSupport, cheats, retroAchievements) to surface Mednafen's capabilities in the core selector.retroAchievements to all libretro/RetroArch cores (which use cheevos.c in PVCoreBridgeRetro) and to com.provenance.core.mednafen (native rc_client integration). Added Mednafen entry with full capability list (highAccuracy, cdAudio, subChannelAudio, multitapSupport, lightgunSupport, cheats, retroAchievements) for correct Layer 3 test fallback. Added NES, FDS, SNES, PCE, PCE-CD system-level requirements to prefer retroAchievements-capable cores. Updated summaries and game-requirement tips to mention RetroAchievements where relevant.