: Apple stated they were aware of reports that this issue may have been actively exploited in the wild.

While 11.5.1 was security-focused, it carries over the bug fixes introduced in 11.5 (20G71), including:

: Fixed an issue where the play count or last played date might not update in the library.

Macos Big Sur 11.5.1 (20g80) Site

: Apple stated they were aware of reports that this issue may have been actively exploited in the wild.

While 11.5.1 was security-focused, it carries over the bug fixes introduced in 11.5 (20G71), including:

: Fixed an issue where the play count or last played date might not update in the library.