The Xiaomi 13 Ultra monster of a cameraphone got a bug-squashing update that aims to get rid of a bunch of issues detected by early adopters.
The MIUI 188.8.131.52.TMACNXM update is for the Chinese version of the software since the 13 Ultra still hasn’t made its debut to the global market.
The changelog says it fixes the frame rate issue in games, a faulty high-temperature warning when the phone isn’t warm and the abnormal CPU power consumption in some rare cases. The update also brings Google’s latest security patch for May 2023.
Source (in Chinese)