Here is a list of issues that were fixed in this release - build PROD_2021_w28.

Issue Key Description
AVSUPPORT-61399, AVSUPPORT-61401, AVSUPPORT-61080, AVSUPPORT-64246 A few customers experienced session timeout in the management portal before the configured session idle timeout.
AVSUPPORT-66014 A customer was unable to dismiss events, the operation failed and the event remained in original status.
AVSUPPORT-65585 A phishing email was misclassified as clean.
AVSUPPORT-65430 The grid column headers in the Daily Digest report email were not showing correctly.
AVSUPPORT-61839 Shadow IT analytics dashboard was not presenting all the information in the new UI.
AVSUPPORT-65372 Avanan Splunk App v1.03 was not working following updates to the information structure in the Avanan portal.
AVSUPPORT-60794, AVSUPPORT-60800 All fields were empty in the dialog showing when clicking "Similar Emails / Create Rules" on restored emails.
AVSUPPORT-60753 Contact Support form was not showing when clicking the button from queries pages.
AVSUPPORT-60675 When clicking the Send Original button on the email page, the popup title was False.