[libcxx-commits] [libcxx] [libc++][memory] P2652R2: Disallow Specialization of `allocator_traits` (PR #79978)

[Nikolas Klauser via libcxx-commits]

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@@ -37,12 +37,16 @@ What's New in Libc++ 19.0.0?
 
 Implemented Papers
 ------------------
+
 - P2637R3 - Member ``visit``
+- P2652R2 - Disallow User Specialization of ``allocator_traits``
 
 
 Improvements and New Features
 -----------------------------
-TODO
+
+- The ``_LIBCPP_ENABLE_CXX23_USER_SPECIALIZATION_OF_ALLOCATOR_TRAITS`` macro has been added to re-enable user specialization
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philnik777 wrote:

There is no need to add a flag for this. The feature has been added in C++23, and not many users will have started relying on it.

https://github.com/llvm/llvm-project/pull/79978