[All Adaptavist Apps]
Our Early Access Programme (EAP) allows interested parties to try out the latest development releases of Theme Builder, prior to the final stable release. As such, you should not use EAP releases in production environments - they may contain bugs or partially complete functionality.
The 4.2.1 release sees the migration to the Atlassian Plugins v2 framework, and bug fixes.
Builder 4.2.1 has only been tested with Confluence 3.4.3 at present.