10.10.3 has broken bluetooth peripherals again
When first upgrading to Yosemite 10.10.1 I had trackpad and intermittent keyboard issues on my iMac. It was fixed with 10.10.2, but appears to be broken again in 10.10.3. I am going to stop upgrading on day 1 of these updates--always 1 step forward, 2 steps back at apple lately.