Poser Pro 11.2 is 64-bit only, no more 32-bit version.

I updated my MacBook to Catalina last night and later updated Poser Pro 11.1 to 11.2. Everything looks good. There are a variety of warning messages that pop up during Poser's installation and first launch due to Catalina's new security measures. Poser seems to be working fine for the short period of time that I've used it. My main Poser machines are 2 older Macs still running Sierra and Poser Pro 11 has been running great on them.

Lee