From 8ea5aa9c4c90936db6a7438df90b14ea2d0bcefe Mon Sep 17 00:00:00 2001
From: Jonathan Desrosiers <359867+desrosj@users.noreply.github.com>
Date: Thu, 5 Nov 2026 16:39:17 -0500
Subject: [PATCH 1/2] Build/Test Tools: Update GitHub-hosted runners to Ubuntu
 26.04.

This updates the GitHub-hosted Ubuntu runners used in GitHub Actions workflows to `ubuntu-26.04`.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011Y86gzNmrCaBaUCqQTNKYH
---
 .github/workflows/coding-standards.yml     |  2 +-
 .github/workflows/javascript-tests.yml     |  2 +-
 .github/workflows/phpunit-tests.yml        | 24 +++++++++++-----------
 .github/workflows/test-build-processes.yml |  6 +++---
 4 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/.github/workflows/coding-standards.yml b/.github/workflows/coding-standards.yml
index 6b3b9236d1c68..fbce6b90397e9 100644
--- a/.github/workflows/coding-standards.yml
+++ b/.github/workflows/coding-standards.yml
@@ -78,7 +78,7 @@ jobs:
 
   failed-workflow:
     name: Failed workflow tasks
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     permissions:
       actions: write
     needs: [ phpcs, jshint, slack-notifications ]
diff --git a/.github/workflows/javascript-tests.yml b/.github/workflows/javascript-tests.yml
index d3899a2839fcb..e5cf2c6c870c4 100644
--- a/.github/workflows/javascript-tests.yml
+++ b/.github/workflows/javascript-tests.yml
@@ -67,7 +67,7 @@ jobs:
 
   failed-workflow:
     name: Failed workflow tasks
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     permissions:
       actions: write
     needs: [ slack-notifications ]
diff --git a/.github/workflows/phpunit-tests.yml b/.github/workflows/phpunit-tests.yml
index c4c27df5409e5..80f35e0e4873e 100644
--- a/.github/workflows/phpunit-tests.yml
+++ b/.github/workflows/phpunit-tests.yml
@@ -41,7 +41,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu-latest ]
+        os: [ ubuntu-26.04 ]
         php: [ '5.3', '7.3' ]
         split_slow: [ false ]
         multisite: [ false, true ]
@@ -50,60 +50,60 @@ jobs:
         include:
           # Include jobs for PHP 7.3 with memcached.
           - php: '7.3'
-            os: ubuntu-latest
+            os: ubuntu-26.04
             memcached: true
             split_slow: false
             multisite: false
           - php: '7.3'
-            os: ubuntu-latest
+            os: ubuntu-26.04
             memcached: true
             split_slow: false
             multisite: true
           # Include jobs that require specific versions of PHPUnit.
           - php: '7.0'
             phpunit: '6-php-7.0'
-            os: ubuntu-latest
+            os: ubuntu-26.04
             memcached: false
             split_slow: false
             multisite: false
           - php: '7.0'
             phpunit: '6-php-7.0'
-            os: ubuntu-latest
+            os: ubuntu-26.04
             memcached: false
             split_slow: false
             multisite: true
           - php: '5.6'
             phpunit: '4-php-5.6'
-            os: ubuntu-latest
+            os: ubuntu-26.04
             memcached: false
             split_slow: false
             multisite: false
           - php: '5.6'
             phpunit: '4-php-5.6'
-            os: ubuntu-latest
+            os: ubuntu-26.04
             memcached: false
             split_slow: false
             multisite: true
           # Additional "slow" jobs for PHP <= 5.6.
           - php: '5.6'
             phpunit: '4-php-5.6'
-            os: ubuntu-latest
+            os: ubuntu-26.04
             memcached: false
             split_slow: true
             multisite: false
           - php: '5.6'
             phpunit: '4-php-5.6'
-            os: ubuntu-latest
+            os: ubuntu-26.04
             memcached: false
             split_slow: true
             multisite: true
           - php: '5.3'
-            os: ubuntu-latest
+            os: ubuntu-26.04
             memcached: false
             split_slow: true
             multisite: false
           - php: '5.3'
-            os: ubuntu-latest
+            os: ubuntu-26.04
             memcached: false
             split_slow: true
             multisite: true
@@ -134,7 +134,7 @@ jobs:
 
   failed-workflow:
     name: Failed workflow tasks
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     permissions:
       actions: write
     needs: [ test-php, slack-notifications ]
diff --git a/.github/workflows/test-build-processes.yml b/.github/workflows/test-build-processes.yml
index f514614647bbd..3bddca501da98 100644
--- a/.github/workflows/test-build-processes.yml
+++ b/.github/workflows/test-build-processes.yml
@@ -45,11 +45,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu-latest, windows-latest ]
+        os: [ ubuntu-26.04, windows-latest ]
         directory: [ 'build' ]
         include:
           # Only prepare artifacts once.
-          - os: ubuntu-latest
+          - os: ubuntu-26.04
             directory: 'build'
             prepare-playground: true
     with:
@@ -100,7 +100,7 @@ jobs:
 
   failed-workflow:
     name: Failed workflow tasks
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     permissions:
       actions: write
     needs: [ slack-notifications ]

From b8970c614010138998eba0f3f4fd93f8eb84f0ad Mon Sep 17 00:00:00 2001
From: Jonathan Desrosiers <359867+desrosj@users.noreply.github.com>
Date: Thu, 5 Nov 2026 17:22:30 -0500
Subject: [PATCH 2/2] Build/Test Tools: Pin the Windows runner version.

This replaces `windows-latest` with `windows-2025`, matching trunk. The macOS jobs already use `macos-15-intel`, which is required for Node.js 14.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011Y86gzNmrCaBaUCqQTNKYH
---
 .github/workflows/test-build-processes.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/test-build-processes.yml b/.github/workflows/test-build-processes.yml
index 3bddca501da98..dea41619afaca 100644
--- a/.github/workflows/test-build-processes.yml
+++ b/.github/workflows/test-build-processes.yml
@@ -45,7 +45,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu-26.04, windows-latest ]
+        os: [ ubuntu-26.04, windows-2025 ]
         directory: [ 'build' ]
         include:
           # Only prepare artifacts once.