id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
17859	Revert to LLVM-15 to fix miscompilations/crashes with Thunderbird (and FF beta)	Douglas R. Reno	Douglas R. Reno	"As discussed in IRC, we've determined that the issues in #17794 are most likely being caused by LLVM (though it still could be rust). We've determined that the common Mozilla code is not affected by the issue and is identical to Firefox-102.9.0esr, which leads us to believe that something within Thunderbird is blowing it up.

This issue might be fixed with LLVM-16.0.1, so we'll try LLVM again at that point. In the meantime, we will back down to LLVM-15 and I will probably update rustc to 1.68.1 w/ librsvg and mercurial just because I know that configuration is working at the moment.

I'll create a LLVM-16.0.0 ticket and put it into hold explaining the reasoning behind this move"	enhancement	closed	normal	12.0	BOOK	git	medium	fixed