i've pulled out the changes from the beta thread. Essentially the last few releases have been making improvements to the VST engines and beatmapper bug fixees.
supports MP3 in 64 Bit again, but its MP3 decoding is not 100% compatible to current official AP 8. We tried to fix this issue (together with VST fixes) in the October public beta, but the fix finally came with the November public beta.
should be 100% compatible to AP 8 MP3 again (and to MP3 beatmapping of the first AP 9 release version).
improved project compatibility to older Acid8 projects regarding VST
Fixed: VST scanner could miss plugins after a plugin crashed during scanning - now all plugins should be recognized