WordPress 5.8.1 was released earlier this evening.
This security and maintenance release features 60 bug fixes in addition to 3 security fixes. Because this is a security release, it is recommended that you update your sites immediately. All versions since WordPress 5.4 have also been updated.
WordPress 5.8.1 is a short-cycle security and maintenance release. The next major release will be version 5.9.
3 security issues affect WordPress versions between 5.4 and 5.8. If you haven’t yet updated to 5.8, all WordPress versions since 5.4 have also been updated to fix the security issues.
Full details at https://wordpress.org/news/2021/09/wordpress-5-8-1-security-and-maintenance-release/