[clang] [clang] Revise relnote for int->enum conversion. (PR #145755)

[Eli Friedman via cfe-commits]

https://github.com/efriedma-quic created https://github.com/llvm/llvm-project/pull/145755

Include more specifics from recent discussion on #143034.

>From 60891ee7c1ee9a368fb097d39a983ffaa72fbfe0 Mon Sep 17 00:00:00 2001
From: Eli Friedman <efriedma at quicinc.com>
Date: Wed, 25 Jun 2025 11:04:51 -0700
Subject: [PATCH] [clang] Revise relnote for int->enum conversion.

Include more specifics from recent discussion on #143034.
---
 clang/docs/ReleaseNotes.rst | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index e1fe22393eebb..c81beb62d3f09 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -66,9 +66,10 @@ C++ Specific Potentially Breaking Changes
 - A workaround for libstdc++4.7 has been removed. Note that 4.8.3 remains the oldest
   supported libstdc++ version.
 - Added ``!nonnull/!align`` metadata to load of references for better codegen.
-- Checking for int->enum conversions in constant expressions is more strict;
-  in particular, ``const E x = (E)-1;`` is not treated as a constant if it's
-  out of range. This impacts old versions of Boost.  (#GH143034)
+- Checking for integer to enum conversions in constant expressions is more
+  strict; in particular, ``const E x = (E)-1;`` is not treated as a constant
+  if it's out of range. The Boost numeric_conversion library is impacted by
+  this; it was fixed in Boost 1.81. (#GH143034)
 
 ABI Changes in This Version
 ---------------------------