As always, if you're on deadline or about to start important work, let the early adopters find the bumps in the road. Saw a tweet about Yosemite possibly killing scopes in FCPX. Hold off for now, as FCPX should be getting an update too, soon.
Rule #1. "If you make money with your software then do yourself a favor and wait"
This isn't an iPhone update, as much as I want to push the button, I know it could make my life hell, I'll wait a month or so. I don't really see the point in doing it without there being a benefit to FCPX anyway since that's all I really use my computer for.
I've been using the pro apps with Yosemite dev beta for quite some time. Scopes and multiclips had some issues, occasional crashes (rare), but when the GM candidates started releasing, it ran great. I also was beta testing a couple of specific plugins for third party developers (there's some wicked awesome FxPlug3 updated stuff coming). For the most part, was always very happy with 10.10 and the pro apps. I'm using it because I have backups, have been using it, etc, and am heavily using of the 10.10 features (making calls with my nMP as a speaker phone while I work).
That said, I would NEVER IN A MILLION YEARS advise anyone making a living at this, to upgrade for a few weeks, lets see what shakes out with the general population first.
Had the same experience as you Ben. I had 10.10 exclusively on my MBP only till today, did some tests with bigger jobs once the GMs dropped, all good. Neat video works, other heavy lifting plugins work.
The rule of 'never upgrade during a project' mattered when hard drives were really expensive, there wasn't rock solid drive cloning tools. Now you can make a sparse image clone of your boot drive, test everything out, and then make an informed decision. If there are any deal breakers, you can just revert back. I haven't really had any catastrophes as long as I have a boot drive clone.
Been using FCPX on Yosemite for a month, no problems, no crashes. SliceX/TrackX work fine.
I don't make a living with X so I wasn't particularly concerned beyond having good backups of Libraries and OS. Library Manager, SuperDuper, couple of big drives, Thunderbolt all help minimize down/recovery time. At least when your the solo editor.
Good to hear many people are having a pretty solid experience with Yosemite. I'll be waiting for now. Hope things stay solid. It usually takes a couple days before the "I updated and now things don't work" posts to come in. Hope the Pro Apps updates come quickly.
I've found a potential issue with PHYX plugins which don't seem to be working for me at least with FCPX 10.1.3 and OS X 10.10 Yosemite. In fact looking further into it, there may be an issue potentially with ALL of the FX Factory plug-ins. Can anyone corroborate these findings?
I've been through my 3rd party plug-ins and found a few that on my late 2013 MBP seem to currently have problems running under Yosemite.
Andys Effects - Better 3D and Elastic Aspect.
Boinx - Flip & Shatter 3D.
DVShade - Easy Looks.
Luca - Light Kit.
Hawaiki - Autograde and Automatch.
Idustrial Revolution - Particlemetrics and Volumetrics.
PHYX - Cleaner, Defocus, Flarelight and Keyer.
Apart from Andys FX, these are all to be found on the FX Factory platform.
Plugins from Cineflare, Digital Anarchy, Coremelt, MotionVFX, Sugar FX, Tokyo and XEffects all seem to be working ok.
Just did some further testing with plugins. Tests on new MacPro D700, 2011 Mini and retina MBP. Our production iMacs won't be updated until next month.
I have no issues with iDustrial Revolution Volumetrix or Particlemetix. Neither with the filters nor with the transitions.
Boinx working fine here as well, as do all the Lucas effects and transitions.
BCC9 working good, CoreMelt plugins are OK.DV Shade also OK.
It seems the issues may be system related, as often. Best to keep an eye on the third party developers' websites to see if they post fixes.
I just installed Yosemite, and the whole process took 30 minutes. FCPX works smoothly, tried some effect like DV Shade, Slice EX and all works as usual. I have to test more effects. But I was a bit worried about Toms issue with Compressor. But to my relief Compressor works flawlessly. Actually a bit faster.