SNK just released Patch 1.14 for King of Fighters 15, and here are the complete patch notes. Rather than a large update, this is patch update that fixes a bug causing the game to freeze from time to time.
King of Fighters 15 Update 1.14 Patch Notes Details, April 5, 2022
– Bug fixes
Fixed bugs that caused freezes.
King of Fighters 15 Update 1.14 is now available to download on all supported platforms. You can find more information about game updates and news in our King of Fighters 15 section.