Update mattermost-v10-changelog.md

source/lifecycle/mattermost-v10-changelog.md

@@ -11,4 +11,12 @@
 
 **Release day: 2024-09-16**
 
-More information on this Mattermost major release coming soon. See the {doc}`Mattermost release policy </lifecycle/release-policy>` documentation for details on {ref}`release types <lifecycle/release-policy:release types>`.
+More information on this Mattermost major release coming soon. See the {doc}`Mattermost release policy </lifecycle/release-policy>` documentation for details on {ref}`release types <lifecycle/release-policy:release types>`.
+
+### Upcoming Breaking Changes in Mattermost v10.0 Release
+
+Mattermost v10.0 is planned for September, 2024. Below is a list of planned breaking changes for this release:
+
+1. MySQL - We will no longer support new installations using MySQL starting in v10. All new customers and/or deployments will only be supported with the minimum supported version of the PostgreSQL database. End of support for MySQL is targeted for Mattermost v11.
+2. Apps Framework - Apps framework will be deprecated in a future upcoming release. Please utilize the plugin framework for developing integrations with the core Mattermost platform.
+3. Playbooks for Enterprise - An Enterprise license will be required to use v2.0+ Playbooks functionality starting in v10. Team Edition and Professional deployments can continue to use Playbooks v1.x. Security and feature updates will only be added to Playbooks v2.0+.