Here is a list of issues that were fixed in this release - build 2.6.45.

Issue Key Description
AVSUPPORT-56409 Some Management Portal login authentication failed due to user lookup issues with case sensitivity in the email address.
AVSUPPORT-56141 Click-Time Protection was breaking MS Teams invites in internal inline mode, it was impossible to access accept or decline buttons.
AVSUPPORT-55930 Downloading email attachment was not working properly in the new Management Portal
AVSUPPORT-55719, AVSUPPORT-56662 Allowlist rule configured with matching URL in "contains" mode was not properly matching emails, matching was working in "exact" mode only.
AVSUPPORT-55534 Some of the email actions (such as download email content) disappeared from email profile page for a specific tenant.
AVSUPPORT-53345 A customer was unable to restore a specific email from quarantine. Fix was applied.
AVSUPPORT-56167 An email was deferred for a few minutes before being received by Avanan. An architecture change was applied to avoid such issues.
AVSUPPORT-54697 Gmail onboarding failed with "failed to configure rules". Solution required reconfiguring the relevant rules and connectors.