[libcxx-commits] [libcxx] [libcxx] Document std::deque default behavior change (PR #206626)

[Nikolas Klauser via libcxx-commits]

philnik777 wrote:

> > We usually don't release note changes only affecting the unstable ABI, since it's a change only relevant to vendors and we expect them to pay some attention to what happens. Did you get a request for this somewhere?
> 
> No I did not receive any such requests. I did not know the release notes policy regarding the unstable ABI. I was just trying to be proactive. I'll close this PR.

Thanks for considering. This isn't exactly a hard rule, more an implicit one. To be clear, I'm not against this, I'm just also not sure it'd significant enough to warrant one. CC @ldionne for thoughts. (Also, should we write down some guidelines what should be release noted? I think that would be helpful for everybody.)

https://github.com/llvm/llvm-project/pull/206626