Introduction

This document includes information on product updates, usage caveats, and known problems for Cisco Secure Email Threat Defense.

Archived release notes for Cisco Secure Email Cloud Mailbox from July 12, 2021 through September 29, 2022 are located here: https://www.cisco.com/c/en/us/td/docs/security/cloud-mailbox/release-notes/cloud-mailbox-release-notes-archive.html