Nothing to worry about, move along
This issue is narrow in nature. [...] We have not identified an exploit, but are pushing the change through our process at the same pace as we would an exploit.
Meaning: We didn't find any exploit, so the fix shouldn't be considered urgent. Come on, we only borked the compiler, that's no problem at all, and it doesn't even affect that many programs. Yet we'll still fast track the fix, out of charity.
That's too kind of you dear sirs. It's not as if compilers were by far the most critical pieces of software.