This Monday, March 11th, is the scheduled release date for Moodle 3.6.3, as well as 3.5.5, 3.4.8 and 3.1.17.
For more information on our release schedule please see our releases page.
Note that Moodle 3.1.x and 3.4.x will go out of support on 13 May 2019. Please ensure to upgrade to a supported version before that time.
Open Source - Moodle HQ