[libcxx-commits] [libcxx] [libcxxabi] [libc++][NFC] Move __memory/aligned_alloc.h into src/ (PR #166172)

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h-vetinari wrote:

> It's not replaced because libc++ only support macOS 11 and later.

The docs still haven't been updated yet, and it's also not pointed out in the [release notes](https://github.com/llvm/llvm-project/blob/release/22.x/libcxx/docs/ReleaseNotes/22.rst). I've tried looking for the PR that raised the minimum version, but couldn't find it (except for [fuchsia](https://github.com/llvm/llvm-project/pull/169568)). The closest might be https://github.com/llvm/llvm-project/commit/1760206383fcb93bf97267a2a7a6bb90721d7fda, which dropped older availability annotations, but #161640 barely discusses this. In contrast, the move to 10.13 got a separate [announcement](https://discourse.llvm.org/t/libc-bumping-minimal-deployment-target-for-building-the-dylib-static-library-on-macos/68912) at the time.

CC @ldionne 

https://github.com/llvm/llvm-project/pull/166172