[libc++] Implement P2417R2 (A more constexpr bitset)
Reviewed By: ldionne, #libc
Spies: jloser, arichardson, libcxx-commits, arphaman
Differential Revision: https://reviews.llvm.org/D131218
NOKEYCHECK=True
GitOrigin-RevId: f02120fba28f2352fd9396683892fc6671caa137
diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst
index 9eed868..f69b4d9 100644
--- a/docs/ReleaseNotes.rst
+++ b/docs/ReleaseNotes.rst
@@ -38,6 +38,7 @@
Implemented Papers
------------------
- P2499R0 - ``string_view`` range constructor should be ``explicit``
+- P2417R2 - A more constexpr bitset
Improvements and New Features
-----------------------------