Here is a list of issues that were fixed in this release - build 2.6.44.

Issue Key Description
AVSUPPORT-54907 A customer was missing internal emails from a compromised account. A few email were retrieved from journal records but were not correctly processed.
AVSUPPORT-53345 Some customers were unable to restore emails from quarantine. This issue is related to the new management portal being rolled out to all customers.
AVSUPPORT-46938 A blocklist rule based on partial match of a URL did not block matching emails.
AVSUPPORT-45123 Trying to generate a custom query in the new portal failed when repeated on another browser tab, resulting in blank screen.
AVSUPPORT-55240 Click Time Protection and Malware Protection were not working on MS Teams platform for a customer.