By Graham K. Rogers

A problem that had been reported from some users of the 10.10.3 update to OS X Yosemite was the difficulty in starting (or re-starting) a Mac in some circumstances. There have also been reports of a kernel panic induced by accessing some JPG images. This includes the use of QuickLook and I experienced this a couple of days ago. I look at a number of images in this way and had not seen the problem before, so it is an occasional event. Nonetheless, it needs to be fixed.

Apple has released a Supplemental Update to OS X 10.10.3 which fixes the video driver issue that could cause a Mac to start when using certain apps that capture video. One down, one (or more) to go.

There are also reports this morning that a build (14E7f) of the 10.10.4 update has been made available to some developers.

Graham K. Rogers teaches at the Faculty of Engineering, Mahidol University in Thailand where he is also Assistant Dean. He wrote in the Bangkok Post, Database supplement on IT subjects. For the last seven years of Database he wrote a column on Apple and Macs. He is now continuing that in the Bangkok Post supplement, Life.