You may need to do a repair on your library, a lot of folks had to do it lately on the betas. To do this, hold the CMD+Option keys before opening Photos.app.
the new beta on my iphone solved the FaceTime issue
Which Mac are you using? It didn't for me. Still have "Cannot Turn On iPhone Cellular Calls" FaceTime and iCloud must be signed in to the same Apple ID to use iPhone Cellular Calls." When trying to enable iPhone Cellular Calls.
hmm, I checked again and it's off now! The only thing changed is the wifi from work to the wifi home.
i'm on a rmbp late 2013 and iphone 5.
continuity/handoff doesn't seem to work either anymore
This update has made my 2015 13" rMBP run smoother (at least for now). It also boots a lot faster.
EDIT: it slowed down again lol. never mind.
You know it doesn't slow down that fast if it is purely OS. You might want to check to console and/or activity monitor to see wh it is slowing down. It sounds like you might have something leaking.
Is it fast again after a reboot?
Yeah. It's purely the GUI choppiness though
Don't know whether this is a Yosemite thing or a Chrome thing, but has anyone else seen that Chrome is using DRASTICALLY less RAM on this build?
You have to give more details. If I understand you correctly, it sounds like the system is stuttering rather than the GUI being choppy. You should still keep an eye on both activity monitor/console apps. I'd keep both open all the time and watch for anything weird over time.
Known Yosemite GUI animation issues are often consistent, they don't slow down over time, they start out slow right away.
One suggestion is to reduce the transparency in the System Pref's Accessibility > Display options, see if that does anything.
Interesting. I'll try and switch WiFi settings and see if that enables it.
That's not true. The problem is the WindowServer process. After time (and heavy use of Preview) it gradually uses more Ram and CPU-Time. In my experience this directly leads to choppiness of various animations. The systems Ram usage or other Applications can be inconspicuous, but the animations still lag.Known Yosemite GUI animation issues are often consistent, they don't slow down over time, they start out slow right away.
Under File select Show Recently Deleted. Then click on one of the tabs to get out of the deleted photos album, because oddly there is no clear "back" button in that album.
Some of Yosemite's GUI issues are literally the opposite of what you just said. Mission Control animations slow down over time. Other issue are demonstrable from first boot, like resizing windows.
Reducing transparency shouldn't be necessary, nor should watching activity monitor all the time.
That said, this latest build has been really great for me. It's faster and smoother and hasn't slowed yet.
That's not true. The problem is the WindowServer process. After time (and heavy use of Preview) it gradually uses more Ram and CPU-Time. In my experience this directly leads to choppiness of various animations. The systems Ram usage or other Applications can be inconspicuous, but the animations still lag.
When you kill this process (and therefore get logged out again) the smooth ui is back.
I've experienced this on my 2013 rMBP (2,4/8/256) and it only started with Yosemite. On (later) Mavericks builds, I haven't had such problems.