I installed the new version and haven’t really had any of the issues other people are having. As far as 32bit codecs, I still have Adobe Media Encoder 2017 installed on my machine so the couple times I’ve had clips that are in an older codec I brought them into Media Encoder 2017 and encoded them to a more modern codec and they worked fine. I agree it would be nice if Adobe made a way of asking you to transcode automatically any clips that it does not agree with now. It’s going to be a nightmare for older projects. Looks like I’ll have to keep a copy of the older Premiere and Media Encoder on hand if I have to open an older project that has a ton of 32bit video files.
I wonder if this has anything to do with Adobe not supporting 32bit Quicktime Codecs anymore? I’ve noticed a warning in the last few installations of Premiere that 32bit Quicktime support would be discontinued in a future release. This might be that release.
I’m running 10.11.5, however I found that 10.11.3 was more stable. I’m getting freezes in 10.11.5, though they are system freezes and have nothing to do with Premiere.