Apple has released macOS Big Sur 11.5.2 with bug fixes.
The new macOS update will automatically download and install for users who have that option enabled. Users can also navigate to System Preferences to initiate the update manually.
Like the macOS 11.5.1 update in July, this update has arrived without a beta period for testing. Apple only lists bug fixes in the update description.
At this time, it is unclear exactly what the new build offers, outside a maintenance and compatibility release. Given that macOS 11.5.1 was a maintenance release, and that macOS Monterey is currently being beta-tested, it seems unlikely that there will be major changes in the build.