Release Prep: 03.09.03

[WillStrohl]

The following task(s) need to be completed before the release can be published.

• Review open/closed PRs in the milestone
• Review open/closed Issues in the milestone
• Update the release number
• Update the DNN manifests
• Update the release notes
• Update copyright statement(s)
• Resolve any issues found during build/final testing

Following these tasks, the extension packages need to be made available in the internal Partner channel area, as well as in the Hotcakes support portal.