Endless OS 4.0.11 was released on November 1st, 2022.
For full details on what's new in Endless OS 4, please see the release notes for Endless OS 4.0.0.
Upstream has a mail discussing Various Linux Kernel WLAN security issues (RCE/DOS) found. This release includes the fixes from upstream to resolve the security issues.
If you want to test beta releases of Endless OS, follow these instructions.