This article originally appeared in TidBITS on 2015-04-16 at 8:05 p.m.
The permanent URL for this article is: http://tidbits.com/article/15591
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OS X Yosemite 10.10.3 Supplemental Update 1.0

by Agen G. N. Schmitz

Apple has released OS X Yosemite 10.10.3 Supplemental Update 1.0 [1], a small maintenance release that comes just a little over a week after the original 10.10.3 update (see “Apple Releases OS X 10.10.3 with Photos [2],” 8 April 2015). This release fixes a video driver issue that bedeviled many users, preventing the system from starting up when running certain apps that capture video. AppleInsider [3] and OS X Daily [4] report that affected users had to resort to booting via Safe Mode, resetting the PRAM, or resetting the startup disk selection in System Preferences. This supplemental update is available via Software Update or via direct download from Apple’s Support Downloads Web site. (Free, 1.8 MB, 10.10.3+)

[1]: https://support.apple.com/kb/DL1807?locale=en_US
[2]: http://tidbits.com/article/15561
[3]: http://appleinsider.com/articles/15/04/16/apple-fixes-sporadic-startup-woes-with-os-x-10103-supplemental-update
[4]: http://osxdaily.com/2015/04/16/supplemental-update-os-x-yosemite-10-10-3-released/