From 82e569c18a04a0a46a0e3c62bdb47a90878696a0 Mon Sep 17 00:00:00 2001
From: Arnaud Becheler <8360330+Becheler@users.noreply.github.com>
Date: Thu, 9 Jul 2026 12:05:52 +0200
Subject: [PATCH] fix: pin macos version

---
 .github/workflows/ci.yml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 181121e61..69f309bc4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -56,7 +56,7 @@ jobs:
         run: ../../../b2 toolset=$TOOLSET cxxstd=${{ matrix.cxxstd }}
         working-directory: ../boost-root/libs/graph/test
   macos:
-    runs-on: macos-latest
+    runs-on: macos-15
     strategy:
       fail-fast: false
       matrix:
@@ -71,6 +71,8 @@ jobs:
           commit-filter: '[skip ci];[ci skip];[CI SKIP];[SKIP CI];***CI SKIP***;***SKIP CI***;[windows];[Windows];[WINDOWS];[linux];[Linux];[LINUX]'
           commit-filter-separator: ';'
           fail-fast: true
+      - name: Print pinned AppleClang version
+        run: clang++ --version
       - name: Checkout main boost
         run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
       - name: Update tools/boostdep