Hi @jens / @turehoefner_appfire,
Thanks for providing the valuable feedback. We are committed to minimise vendor friction.
We have raised CONFSERVER-79630 to provide a layer in confluence-compat-lib to cover >90% plugin cases for compatibility.
We would provide an update in this forum and Jira once we have a working version of the compat library.
Meanwhile, we would still recommend plugin devs to evaluate their plugin with changed class on 8.0.0-struts-m020 just to see the scale of issues(if any) with the upgrade.
Please reach out here if you face any issues with this upgrade.
Thanks,
Ganesh