Following the macOS 11.5.1 version at the end of July, Apple today pushed the macOS Big Sur 11.5.2 update (internal version number: 20G95) to Mac computer users, which contains bug fixes and possible More features. Apple has not disclosed any content of this update.
However, since macOS 11.5.1 is only a maintenance version, and macOS Monterey has just launched the beta 5 version, there should not be much change in this version.