Here is a list of issues that were fixed in this release - build 2.6.38.

Issue Key Description
AVSUPPORT-49668 DLP encryption workflow options appeared when Microsoft Encryption engine was not enabled.
AVSUPPORT-49338 For few customers some message were not quarantined/marked junk. Emails were also missing in mail explorer
AVSUPPORT-49694 Some messages were not properly delivered between 2 Avanan customers protected in inline mode. Changes to the O365 connectors were applied.
AVSUPPORT-49068 Click-Time Protection was adding a trailing round brackets ")" to the rewritten URL, due to URL parsing issues.