v002 Screen Capture 2.0 (on our https://github.com/v002/v002-Media-Tools/ repository) works with Yosemite. I just tested it and made a RGB 4444 Pro Res recording via Quartz Composer -> Syphon Recorder at 60fps.
We’ve been lax with updating official releases of plugins because of the number of bugs and unfixed issues in QC, so we aren’t putting a lot of dev and personal time in to it. Sorry about the confusion.
