Aaaand they introduced WebGL bugs that broke our product, and iPhone users will experience these bugs until we can hack a workaround in, or until Apple acknowledges a bug report (that I have to make a minimal test case for and report, and haven't narrowed down yet), patches the issue in Safari, and decides if it's important enough to release as a 15.4.1 (which they probably won't, which means I'm stuck finding a work…
a side question, how do you make a bug report on Safari? I've found FF and Chrome easy enough, but when I went to look for making one on Safari about a year ago I decided screw it, it seemed hard to find where to start (by googling at any rate)