There was an Android update pushed to my phone recently. I wanted to know if it was an urgent security fix so I checked the diffs. It's hard to tell but it doesn't seem to be. It's a bunch of fixes to do with video out, SIP etc.

I thought maybe the patch fixed this security flaw. It wasn't clear what it was for from the phone. I had to do a fair bit of digging. Are there any change-logs or release notes for these system updates?