At this time Retrospect.app and engine require Apple Rosetta which will continue to be supported by Apple until at least September of 2027. We plan to release an Apple Silicon version of Retrospect and Retrospect Client before the 9/27 deadline.
We have already released an Apple Silicon version of the new Retrospect Novus interface as part of the Retrospect 20 release. This interface will continue to be updated and evolve in the coming months while we prepare a new version of the Retrospect Client, Retrospect application and engine with native Silicon support.