Here is a list of issues that were fixed in this release - build 2.6.22.

Issue Key Description
AVSUPPORT-37957 For G-Suite customers, in case Google Drive SaaS was not running the Custom-Queries and Login Map information was missing the Google login events.
AVSUPPORT-32272, AVSUPPORT-33805, AVSUPPORT-36111 For a few customers failed to release emails from quarantine or reject the request restore. The issue caused due to faulty internal configuration that was reset.