Here is a list of issues that were fixed in this release - build 2.6.36.

Issue Key Description
AVSUPPORT-47314 Phishing emails were sent from a compromised email address, but anomaly event were not triggered for suspicious login locations.
AVSUPPORT-46691 Phishing attack was missed due to wrong MTA flag configuration. This issue impacted only customer migrating from SEG solutions.
AVSUPPORT-47564 Request to restore email from quarantine lead to a notification stating that the email no longer exists, while in fact the email exists.
AVSUPPORT-46915 For some customers login events were processed for users that are filtered out.