# Cemu detailed changelog for 1.22.0h# Patreon release date: 2020-11-13# Public release date: 2020-11-20# New in 1.22.0f/g/h (public release):general: Fixed even more race conditions which could lead to low performance, softlocks or crashes# New in 1.22.0b/c/d/e:general: Fixed several race conditions which could lead to crashes or softlocks in any game# New in 1.22.0:general: Reworked PowerPC and Cafe OS threading from the ground upSummary of changes:- The existing single/dual/triple-core CPU modes are replaced with 'Single-core' and 'Multi-core' mode- The new multi-core recompiler will use one full CPU thread + up to two extra threads (dynamically scales with actual CPU usage by the emulated CPU)Multi-core mode has slightly better performance compared to triplecore modeOverall CPU utilization on the host should be reduced for games that are not heavily multi-threaded (e.g. Super Mario 3D World, Twilight Princess)- Decreased overhead in all modes (minor performance boost)- Fixed a few multi-core race conditions- The CPU mode 'auto' option will use single-core mode for CPUs with three or less physical cores and multi-core mode for anything aboveOpenGL/Vulkan: Optimized PM4 command processor (up to 5% performance gain depending on the game)