Moodle 3.5.18 release notes
From MoodleDocs
This version of Moodle is no longer supported for general bug fixes. You are encouraged to upgrade to a supported version of Moodle.
Releases > Moodle 3.5.18 release notes
Release date: Not yet released - scheduled for 10 May 2021
Here is the full list of fixed issues in 3.5.18.
Security fixes
Details of any security fixes will be released after a period of approximately one week to allow system administrators to safely update to the latest version.