WordPress 5.8 “Tatum” was released on July 20, 2021. This is a feature release which generally means you need to update manually unless you enabled auto-updates for feature releases.
https://wordpress.org/news/2021/07/tatum/
Features Include
- Template Editor (on themes that support this)
- Site-wide Blocks
- Manage widgets with Blocks
- Display Posts with New Blocks and Patterns
- Style and colorize images
See also – https://www.wpbeginner.com/news/whats-new-in-wordpress-5-8-features-and-screenshots/