From a3a76e18b03ed77decc1635e381ac940b0fca9af Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Tue, 4 Feb 2025 17:24:38 +0000
Subject: [PATCH 01/18] Add upgrade testing for the current branch.

---
 .../workflows/reusable-upgrade-testing.yml    |  40 ++++++-
 .github/workflows/upgrade-develop-testing.yml | 101 ++++++++++++++++++
 2 files changed, 140 insertions(+), 1 deletion(-)
 create mode 100644 .github/workflows/upgrade-develop-testing.yml

diff --git a/.github/workflows/reusable-upgrade-testing.yml b/.github/workflows/reusable-upgrade-testing.yml
index 1c617ee91f36f..19f615fed9fe9 100644
--- a/.github/workflows/reusable-upgrade-testing.yml
+++ b/.github/workflows/reusable-upgrade-testing.yml
@@ -14,7 +14,7 @@ on:
         required: true
         type: 'string'
       new-version:
-        description: 'The version of WordPress to update to.'
+        description: 'The version of WordPress to update to. Use "latest" to update to the latest version, or "develop" to update to the current branch.'
         type: 'string'
         default: 'latest'
       php:
@@ -99,7 +99,45 @@ jobs:
       - name: Update to the latest minor version
         run: wp core update --minor
 
+      - name: Download build artifact for the current branch
+        if: ${{ inputs.new-version == 'develop' }}
+        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
+        with:
+          script: |
+            const artifacts = await github.rest.actions.listWorkflowRunArtifacts( {
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                run_id: process.env.RUN_ID,
+            } );
+
+            const matchArtifact = artifacts.data.artifacts.filter( ( artifact ) => {
+              return artifact.name.startsWith( 'wordpress-build-' );
+            } )[0];
+
+            if ( ! matchArtifact ) {
+              core.setFailed( 'No artifact found!' );
+              return;
+            }
+
+            const download = await github.rest.actions.downloadArtifact( {
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                artifact_id: matchArtifact.id,
+                archive_format: 'zip',
+            } );
+
+            const fs = require( 'fs' );
+            fs.writeFileSync( process.env.GITHUB_WORKSPACE + '/develop.zip', Buffer.from( download.data ) )
+        env:
+          RUN_ID: ${{ github.event.workflow_run.id }}
+
+      - name: Upgrade to WordPress at current branch
+        if: ${{ inputs.new-version == 'develop' }}
+        run: |
+          wp core update develop.zip
+
       - name: Upgrade to WordPress ${{ inputs.new-version }}
+        if: ${{ inputs.new-version != 'develop' }}
         run: |
           wp core update ${{ 'latest' != inputs.new-version && '--version="${WP_VERSION}"' || '' }}
         env:
diff --git a/.github/workflows/upgrade-develop-testing.yml b/.github/workflows/upgrade-develop-testing.yml
new file mode 100644
index 0000000000000..0f4fdec703b1a
--- /dev/null
+++ b/.github/workflows/upgrade-develop-testing.yml
@@ -0,0 +1,101 @@
+# Confirms that updating WordPress using WP-CLI works successfully.
+#
+# This workflow tests upgrading from a previous version to the current wordpress-develop checkout, not to a version available on WordPress.org.
+name: Upgrade Develop Version Tests
+
+on:
+  workflow_run:
+    workflows: [ 'Test Build Processes' ]
+    types:
+      - completed
+
+# Cancels all previous workflow runs for pull requests that have not completed.
+concurrency:
+  # The concurrency group contains the workflow name and the branch name for pull requests
+  # or the commit hash for any other events.
+  group: ${{ github.workflow }}-${{ github.event_name == 'pull_request' && github.head_ref || github.sha }}
+  cancel-in-progress: true
+
+# Disable permissions for all available scopes by default.
+# Any needed permissions should be configured at the job level.
+permissions: {}
+
+# ...
+jobs:
+  # ...
+  upgrade-tests-develop:
+    name: ${{ matrix.wp }}
+    uses: ./.github/workflows/reusable-upgrade-testing.yml
+    if: ${{ github.repository == 'WordPress/wordpress-develop' || github.event_name == 'pull_request' }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ 'ubuntu-24.04' ]
+        php: [ '7.2', '8.4' ]
+        db-type: [ 'mysql' ]
+        db-version: [ '5.7', '8.4' ]
+        wp: [ '6.6', '6.7' ]
+        multisite: [ false, true ]
+
+        exclude:
+          # The PHP <= 7.3/MySQL 8.4 jobs currently fail due to mysql_native_password being disabled by default. See https://core.trac.wordpress.org/ticket/61218.
+          - php: '7.2'
+            db-version: '8.4'
+    with:
+      os: ${{ matrix.os }}
+      php: ${{ matrix.php }}
+      db-type: ${{ matrix.db-type }}
+      db-version: ${{ matrix.db-version }}
+      wp: ${{ matrix.wp }}
+      new-version: develop
+      multisite: ${{ matrix.multisite }}
+
+
+  slack-notifications:
+    name: Slack Notifications
+    uses: ./.github/workflows/slack-notifications.yml
+    permissions:
+      actions: read
+      contents: read
+    needs: [ upgrade-tests-develop ]
+    if: ${{ github.repository == 'WordPress/wordpress-develop' && github.event_name != 'pull_request' && always() }}
+    with:
+      calling_status: ${{ contains( needs.*.result, 'cancelled' ) && 'cancelled' || contains( needs.*.result, 'failure' ) && 'failure' || 'success' }}
+    secrets:
+      SLACK_GHA_SUCCESS_WEBHOOK: ${{ secrets.SLACK_GHA_SUCCESS_WEBHOOK }}
+      SLACK_GHA_CANCELLED_WEBHOOK: ${{ secrets.SLACK_GHA_CANCELLED_WEBHOOK }}
+      SLACK_GHA_FIXED_WEBHOOK: ${{ secrets.SLACK_GHA_FIXED_WEBHOOK }}
+      SLACK_GHA_FAILURE_WEBHOOK: ${{ secrets.SLACK_GHA_FAILURE_WEBHOOK }}
+
+  failed-workflow:
+    name: Failed workflow tasks
+    runs-on: ubuntu-24.04
+    permissions:
+      actions: write
+    needs: [ slack-notifications ]
+    if: |
+      always() &&
+      github.repository == 'WordPress/wordpress-develop' &&
+      github.event_name != 'pull_request' &&
+      github.run_attempt < 2 &&
+      (
+        contains( needs.*.result, 'cancelled' ) ||
+        contains( needs.*.result, 'failure' )
+      )
+
+    steps:
+      - name: Dispatch workflow run
+        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
+        with:
+          retries: 2
+          retry-exempt-status-codes: 418
+          script: |
+            github.rest.actions.createWorkflowDispatch({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              workflow_id: 'failed-workflow.yml',
+              ref: 'trunk',
+              inputs: {
+                run_id: `${context.runId}`,
+              }
+            });

From 583ec179a04be9430225c5372732c511ef3d5198 Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Tue, 4 Feb 2025 17:24:49 +0000
Subject: [PATCH 02/18] Don't run these tests in this PR.

---
 .github/workflows/upgrade-testing.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/upgrade-testing.yml b/.github/workflows/upgrade-testing.yml
index a8b4a9b1c2a46..0691577c6daab 100644
--- a/.github/workflows/upgrade-testing.yml
+++ b/.github/workflows/upgrade-testing.yml
@@ -10,12 +10,12 @@ on:
     # Always test the workflow after it's updated.
     paths:
       - '.github/workflows/upgrade-testing.yml'
-      - '.github/workflows/reusable-upgrade-testing.yml'
+      # - '.github/workflows/reusable-upgrade-testing.yml'
   pull_request:
     # Always test the workflow when changes are suggested.
     paths:
       - '.github/workflows/upgrade-testing.yml'
-      - '.github/workflows/reusable-upgrade-testing.yml'
+      # - '.github/workflows/reusable-upgrade-testing.yml'
   workflow_dispatch:
     inputs:
       new-version:

From 51ecaf68cf1b1501dceda87644acf886e2608547 Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Tue, 4 Feb 2025 17:27:44 +0000
Subject: [PATCH 03/18] Argh.

---
 .github/workflows/upgrade-testing.yml | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/upgrade-testing.yml b/.github/workflows/upgrade-testing.yml
index 0691577c6daab..965adc616d424 100644
--- a/.github/workflows/upgrade-testing.yml
+++ b/.github/workflows/upgrade-testing.yml
@@ -10,12 +10,12 @@ on:
     # Always test the workflow after it's updated.
     paths:
       - '.github/workflows/upgrade-testing.yml'
-      # - '.github/workflows/reusable-upgrade-testing.yml'
-  pull_request:
-    # Always test the workflow when changes are suggested.
-    paths:
-      - '.github/workflows/upgrade-testing.yml'
-      # - '.github/workflows/reusable-upgrade-testing.yml'
+      - '.github/workflows/reusable-upgrade-testing.yml'
+  # pull_request:
+  #   # Always test the workflow when changes are suggested.
+  #   paths:
+  #     - '.github/workflows/upgrade-testing.yml'
+  #     - '.github/workflows/reusable-upgrade-testing.yml'
   workflow_dispatch:
     inputs:
       new-version:

From 6854186fe6a2c845072d0380713be68f14c2b378 Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Tue, 4 Feb 2025 17:37:22 +0000
Subject: [PATCH 04/18] Trigger a build.

---
 src/index.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/index.php b/src/index.php
index 91c0517857339..2d56e43978b6a 100644
--- a/src/index.php
+++ b/src/index.php
@@ -1,5 +1,7 @@
 <?php
 
+// Hello
+
 /**
  * Note: this file exists only to remind developers to build the assets.
  * For the real index.php that gets built and boots WordPress,

From 9ac899aaecf514ac95a95da4c1edc626b47daba9 Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Tue, 4 Feb 2025 17:37:40 +0000
Subject: [PATCH 05/18] Don't need any of these running in this PR.

---
 .github/workflows/coding-standards.yml  | 40 ++++++++++-----------
 .github/workflows/end-to-end-tests.yml  | 44 +++++++++++------------
 .github/workflows/performance.yml       | 46 ++++++++++++------------
 .github/workflows/php-compatibility.yml | 30 ++++++++--------
 .github/workflows/phpunit-tests.yml     | 48 ++++++++++++-------------
 5 files changed, 104 insertions(+), 104 deletions(-)

diff --git a/.github/workflows/coding-standards.yml b/.github/workflows/coding-standards.yml
index 3bb7a60d1d233..88b006b237b06 100644
--- a/.github/workflows/coding-standards.yml
+++ b/.github/workflows/coding-standards.yml
@@ -12,26 +12,26 @@ on:
       - '[0-9]+.[0-9]'
       - '[0-9]+.[0-9].[0-9]+'
       - '!3.7.[0-9]+'
-  pull_request:
-    branches:
-      - trunk
-      - '3.[89]'
-      - '[4-9].[0-9]'
-    paths:
-      # Any change to a PHP or JavaScript file should run checks.
-      - '**.js'
-      - '**.php'
-      # These files configure npm. Changes could affect the outcome.
-      - 'package*.json'
-      # These files configure Composer. Changes could affect the outcome.
-      - 'composer.*'
-      # This file configures JSHint. Changes could affect the outcome.
-      - '.jshintrc'
-      # This file configures PHPCS. Changes could affect the outcome.
-      - 'phpcs.xml.dist'
-      # Confirm any changes to relevant workflow files.
-      - '.github/workflows/coding-standards.yml'
-      - '.github/workflows/reusable-coding-standards-*.yml'
+  # pull_request:
+  #   branches:
+  #     - trunk
+  #     - '3.[89]'
+  #     - '[4-9].[0-9]'
+  #   paths:
+  #     # Any change to a PHP or JavaScript file should run checks.
+  #     - '**.js'
+  #     - '**.php'
+  #     # These files configure npm. Changes could affect the outcome.
+  #     - 'package*.json'
+  #     # These files configure Composer. Changes could affect the outcome.
+  #     - 'composer.*'
+  #     # This file configures JSHint. Changes could affect the outcome.
+  #     - '.jshintrc'
+  #     # This file configures PHPCS. Changes could affect the outcome.
+  #     - 'phpcs.xml.dist'
+  #     # Confirm any changes to relevant workflow files.
+  #     - '.github/workflows/coding-standards.yml'
+  #     - '.github/workflows/reusable-coding-standards-*.yml'
   workflow_dispatch:
 
 # Cancels all previous workflow runs for pull requests that have not completed.
diff --git a/.github/workflows/end-to-end-tests.yml b/.github/workflows/end-to-end-tests.yml
index cc8f34810106c..412d11c1318ef 100644
--- a/.github/workflows/end-to-end-tests.yml
+++ b/.github/workflows/end-to-end-tests.yml
@@ -12,28 +12,28 @@ on:
       - '[0-9]+.[0-9].[0-9]+'
       - '![34].[0-9].[0-9]+'
       - '!5.[0-2].[0-9]+'
-  pull_request:
-    branches:
-      - trunk
-      - '5.[3-9]'
-      - '[6-9].[0-9]'
-    paths:
-      # Any change to a PHP, CSS, or JavaScript file should run checks.
-      - '**.css'
-      - '**.js'
-      - '**.php'
-      # These files configure npm and the task runner. Changes could affect the outcome.
-      - 'package*.json'
-      - 'Gruntfile.js'
-      - 'webpack.config.js'
-      - 'tools/webpack/**'
-      # These files configure Composer. Changes could affect the outcome.
-      - 'composer.*'
-      # This files affect the e2e tests. Changes could affect the outcome.
-      - 'tests/e2e/**'
-      # Confirm any changes to relevant workflow files.
-      - '.github/workflows/end-to-end-tests.yml'
-      - '.github/workflows/reusable-end-to-end-tests-*.yml'
+  # pull_request:
+  #   branches:
+  #     - trunk
+  #     - '5.[3-9]'
+  #     - '[6-9].[0-9]'
+  #   paths:
+  #     # Any change to a PHP, CSS, or JavaScript file should run checks.
+  #     - '**.css'
+  #     - '**.js'
+  #     - '**.php'
+  #     # These files configure npm and the task runner. Changes could affect the outcome.
+  #     - 'package*.json'
+  #     - 'Gruntfile.js'
+  #     - 'webpack.config.js'
+  #     - 'tools/webpack/**'
+  #     # These files configure Composer. Changes could affect the outcome.
+  #     - 'composer.*'
+  #     # This files affect the e2e tests. Changes could affect the outcome.
+  #     - 'tests/e2e/**'
+  #     # Confirm any changes to relevant workflow files.
+  #     - '.github/workflows/end-to-end-tests.yml'
+  #     - '.github/workflows/reusable-end-to-end-tests-*.yml'
   workflow_dispatch:
 
 # Cancels all previous workflow runs for pull requests that have not completed.
diff --git a/.github/workflows/performance.yml b/.github/workflows/performance.yml
index 27339c1eefc41..3d56739265753 100644
--- a/.github/workflows/performance.yml
+++ b/.github/workflows/performance.yml
@@ -11,29 +11,29 @@ on:
       - '[0-9]+.[0-9].[0-9]+'
       - '![45].[0-9].[0-9]+'
       - '!6.[01].[0-9]+'
-  pull_request:
-    branches:
-      - trunk
-      - '6.[2-9]'
-      - '[7-9].[0-9]'
-    paths:
-      # Any change to a PHP, CSS, or JavaScript file should run checks.
-      - '**.css'
-      - '**.js'
-      - '**.php'
-      # These files configure npm and the task runner. Changes could affect the outcome.
-      - 'package*.json'
-      - 'Gruntfile.js'
-      - 'webpack.config.js'
-      - 'tools/webpack/**'
-      # These files configure Composer. Changes could affect the outcome.
-      - 'composer.*'
-      # This files affect the performance tests. Changes could affect the outcome.
-      - 'tests/performance/**'
-      # Confirm any changes to relevant workflow files.
-      - '.github/workflows/performance.yml'
-      - '.github/workflows/reusable-performance.yml'
-      - '.github/workflows/reusable-performance-*.yml'
+  # pull_request:
+  #   branches:
+  #     - trunk
+  #     - '6.[2-9]'
+  #     - '[7-9].[0-9]'
+  #   paths:
+  #     # Any change to a PHP, CSS, or JavaScript file should run checks.
+  #     - '**.css'
+  #     - '**.js'
+  #     - '**.php'
+  #     # These files configure npm and the task runner. Changes could affect the outcome.
+  #     - 'package*.json'
+  #     - 'Gruntfile.js'
+  #     - 'webpack.config.js'
+  #     - 'tools/webpack/**'
+  #     # These files configure Composer. Changes could affect the outcome.
+  #     - 'composer.*'
+  #     # This files affect the performance tests. Changes could affect the outcome.
+  #     - 'tests/performance/**'
+  #     # Confirm any changes to relevant workflow files.
+  #     - '.github/workflows/performance.yml'
+  #     - '.github/workflows/reusable-performance.yml'
+  #     - '.github/workflows/reusable-performance-*.yml'
   workflow_dispatch:
 
 # Cancels all previous workflow runs for pull requests that have not completed.
diff --git a/.github/workflows/php-compatibility.yml b/.github/workflows/php-compatibility.yml
index c712e50476dbe..1a8d1406f71a6 100644
--- a/.github/workflows/php-compatibility.yml
+++ b/.github/workflows/php-compatibility.yml
@@ -12,21 +12,21 @@ on:
       - '[0-9]+.[0-9].[0-9]+'
       - '![34].[0-9].[0-9]+'
       - '!5.[0-4].[0-9]+'
-  pull_request:
-    branches:
-      - trunk
-      - '5.[5-9]'
-      - '[6-9].[0-9]'
-    paths:
-      # This workflow only scans PHP files.
-      - '**.php'
-      # These files configure Composer. Changes could affect the outcome.
-      - 'composer.*'
-      # This file configures PHP compatibility scanning. Changes could affect the outcome.
-      - 'phpcompat.xml.dist'
-      # Confirm any changes to relevant workflow files.
-      - '.github/workflows/php-compatibility.yml'
-      - '.github/workflows/reusable-php-compatibility.yml'
+  # pull_request:
+  #   branches:
+  #     - trunk
+  #     - '5.[5-9]'
+  #     - '[6-9].[0-9]'
+  #   paths:
+  #     # This workflow only scans PHP files.
+  #     - '**.php'
+  #     # These files configure Composer. Changes could affect the outcome.
+  #     - 'composer.*'
+  #     # This file configures PHP compatibility scanning. Changes could affect the outcome.
+  #     - 'phpcompat.xml.dist'
+  #     # Confirm any changes to relevant workflow files.
+  #     - '.github/workflows/php-compatibility.yml'
+  #     - '.github/workflows/reusable-php-compatibility.yml'
   workflow_dispatch:
 
 # Cancels all previous workflow runs for pull requests that have not completed.
diff --git a/.github/workflows/phpunit-tests.yml b/.github/workflows/phpunit-tests.yml
index 44c1476980fde..87cd059358459 100644
--- a/.github/workflows/phpunit-tests.yml
+++ b/.github/workflows/phpunit-tests.yml
@@ -9,30 +9,30 @@ on:
     tags:
       - '[0-9]+.[0-9]'
       - '[0-9]+.[0-9].[0-9]+'
-  pull_request:
-    branches:
-      - trunk
-      - '3.[7-9]'
-      - '[4-9].[0-9]'
-    paths:
-      # Any change to a PHP, CSS, JavaScript, JSON, HTML, or otherwise tested file should run checks.
-      - '**.css'
-      - '**.html'
-      - '**.js'
-      - '**.json'
-      - '**.php'
-      - 'src/license.txt'
-      - 'src/SECURITY.md'
-      # These files configure npm and the task runner. Changes could affect the outcome.
-      - 'package*.json'
-      - 'Gruntfile.js'
-      # These files configure Composer. Changes could affect the outcome.
-      - 'composer.*'
-      # This files affect the phpunit tests. Changes could affect the outcome.
-      - 'tests/phpunit/**'
-      # Confirm any changes to relevant workflow files.
-      - '.github/workflows/phpunit-tests.yml'
-      - '.github/workflows/reusable-phpunit-tests-*.yml'
+  # pull_request:
+  #   branches:
+  #     - trunk
+  #     - '3.[7-9]'
+  #     - '[4-9].[0-9]'
+  #   paths:
+  #     # Any change to a PHP, CSS, JavaScript, JSON, HTML, or otherwise tested file should run checks.
+  #     - '**.css'
+  #     - '**.html'
+  #     - '**.js'
+  #     - '**.json'
+  #     - '**.php'
+  #     - 'src/license.txt'
+  #     - 'src/SECURITY.md'
+  #     # These files configure npm and the task runner. Changes could affect the outcome.
+  #     - 'package*.json'
+  #     - 'Gruntfile.js'
+  #     # These files configure Composer. Changes could affect the outcome.
+  #     - 'composer.*'
+  #     # This files affect the phpunit tests. Changes could affect the outcome.
+  #     - 'tests/phpunit/**'
+  #     # Confirm any changes to relevant workflow files.
+  #     - '.github/workflows/phpunit-tests.yml'
+  #     - '.github/workflows/reusable-phpunit-tests-*.yml'
   workflow_dispatch:
   # Once weekly On Sundays at 00:00 UTC.
   schedule:

From d3954cf6f8cfa3a8ab2966b4ab6d69057cd05840 Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Tue, 4 Feb 2025 18:40:44 +0000
Subject: [PATCH 06/18] Enable manual running of develop performance testing.

---
 .github/workflows/reusable-upgrade-testing.yml | 7 ++++++-
 .github/workflows/upgrade-develop-testing.yml  | 7 +++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/reusable-upgrade-testing.yml b/.github/workflows/reusable-upgrade-testing.yml
index 19f615fed9fe9..a47de3c0d6284 100644
--- a/.github/workflows/reusable-upgrade-testing.yml
+++ b/.github/workflows/reusable-upgrade-testing.yml
@@ -36,6 +36,11 @@ on:
         required: false
         type: 'string'
         default: '5.7'
+      run-id:
+        description: 'The ID of the workflow run to fetch the build from.'
+        required: false
+        type: 'number'
+        default: ${{ github.event.workflow_run.id }}
 
 # Disable permissions for all available scopes by default.
 # Any needed permissions should be configured at the job level.
@@ -129,7 +134,7 @@ jobs:
             const fs = require( 'fs' );
             fs.writeFileSync( process.env.GITHUB_WORKSPACE + '/develop.zip', Buffer.from( download.data ) )
         env:
-          RUN_ID: ${{ github.event.workflow_run.id }}
+          RUN_ID: ${{ inputs.run-id }}
 
       - name: Upgrade to WordPress at current branch
         if: ${{ inputs.new-version == 'develop' }}
diff --git a/.github/workflows/upgrade-develop-testing.yml b/.github/workflows/upgrade-develop-testing.yml
index 0f4fdec703b1a..2dd20b3879bfc 100644
--- a/.github/workflows/upgrade-develop-testing.yml
+++ b/.github/workflows/upgrade-develop-testing.yml
@@ -8,6 +8,12 @@ on:
     workflows: [ 'Test Build Processes' ]
     types:
       - completed
+  workflow_dispatch:
+    inputs:
+      run-id:
+        description: 'The ID of the workflow run to fetch the build from.'
+        required: true
+        type: 'number'
 
 # Cancels all previous workflow runs for pull requests that have not completed.
 concurrency:
@@ -48,6 +54,7 @@ jobs:
       db-version: ${{ matrix.db-version }}
       wp: ${{ matrix.wp }}
       new-version: develop
+      run-id: ${{ inputs.run-id || github.event.workflow_run.id }}
       multisite: ${{ matrix.multisite }}
 
 

From 7c6136878e08ab306d7dd5e1b81178dace6269a5 Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Tue, 4 Feb 2025 21:00:11 +0000
Subject: [PATCH 07/18] Switch to running the build in the same workflow.

---
 .../workflows/reusable-upgrade-testing.yml    | 35 +--------
 .github/workflows/upgrade-develop-testing.yml | 73 ++++++++++++++++---
 2 files changed, 64 insertions(+), 44 deletions(-)

diff --git a/.github/workflows/reusable-upgrade-testing.yml b/.github/workflows/reusable-upgrade-testing.yml
index a47de3c0d6284..31380f67e3291 100644
--- a/.github/workflows/reusable-upgrade-testing.yml
+++ b/.github/workflows/reusable-upgrade-testing.yml
@@ -36,11 +36,6 @@ on:
         required: false
         type: 'string'
         default: '5.7'
-      run-id:
-        description: 'The ID of the workflow run to fetch the build from.'
-        required: false
-        type: 'number'
-        default: ${{ github.event.workflow_run.id }}
 
 # Disable permissions for all available scopes by default.
 # Any needed permissions should be configured at the job level.
@@ -106,35 +101,9 @@ jobs:
 
       - name: Download build artifact for the current branch
         if: ${{ inputs.new-version == 'develop' }}
-        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
+        uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
         with:
-          script: |
-            const artifacts = await github.rest.actions.listWorkflowRunArtifacts( {
-                owner: context.repo.owner,
-                repo: context.repo.repo,
-                run_id: process.env.RUN_ID,
-            } );
-
-            const matchArtifact = artifacts.data.artifacts.filter( ( artifact ) => {
-              return artifact.name.startsWith( 'wordpress-build-' );
-            } )[0];
-
-            if ( ! matchArtifact ) {
-              core.setFailed( 'No artifact found!' );
-              return;
-            }
-
-            const download = await github.rest.actions.downloadArtifact( {
-                owner: context.repo.owner,
-                repo: context.repo.repo,
-                artifact_id: matchArtifact.id,
-                archive_format: 'zip',
-            } );
-
-            const fs = require( 'fs' );
-            fs.writeFileSync( process.env.GITHUB_WORKSPACE + '/develop.zip', Buffer.from( download.data ) )
-        env:
-          RUN_ID: ${{ inputs.run-id }}
+          name: wordpress-develop
 
       - name: Upgrade to WordPress at current branch
         if: ${{ inputs.new-version == 'develop' }}
diff --git a/.github/workflows/upgrade-develop-testing.yml b/.github/workflows/upgrade-develop-testing.yml
index 2dd20b3879bfc..758725ada55fc 100644
--- a/.github/workflows/upgrade-develop-testing.yml
+++ b/.github/workflows/upgrade-develop-testing.yml
@@ -4,16 +4,32 @@
 name: Upgrade Develop Version Tests
 
 on:
-  workflow_run:
-    workflows: [ 'Test Build Processes' ]
-    types:
-      - completed
+  push:
+    branches:
+      - trunk
+      - '6.[8-9]'
+      - '[7-9].[0-9]'
+    tags:
+      - '[0-9]+.[0-9]'
+      - '[0-9]+.[0-9].[0-9]+'
+    paths:
+      # Any change to a source PHP file should run checks.
+      - 'src/**.php'
+      # Confirm any changes to relevant workflow files.
+      - '.github/workflows/upgrade-develop-testing.yml'
+      - '.github/workflows/reusable-upgrade-testing.yml'
+  pull_request:
+    branches:
+      - trunk
+      - '6.[8-9]'
+      - '[7-9].[0-9]'
+    paths:
+      # Any change to a source PHP file should run checks.
+      - 'src/**.php'
+      # Confirm any changes to relevant workflow files.
+      - '.github/workflows/upgrade-develop-testing.yml'
+      - '.github/workflows/reusable-upgrade-testing.yml'
   workflow_dispatch:
-    inputs:
-      run-id:
-        description: 'The ID of the workflow run to fetch the build from.'
-        required: true
-        type: 'number'
 
 # Cancels all previous workflow runs for pull requests that have not completed.
 concurrency:
@@ -28,11 +44,48 @@ permissions: {}
 
 # ...
 jobs:
+  build:
+    name: Build
+    permissions:
+      contents: read
+    runs-on: ubuntu-24.04
+    timeout-minutes: 20
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
+          persist-credentials: false
+
+      - name: Set up Node.js
+        uses: actions/setup-node@1d0ff469b7ec7b3cb9d8673fde0c81c44821de2a # v4.2.0
+        with:
+          node-version-file: '.nvmrc'
+          cache: npm
+
+      - name: Install npm Dependencies
+        run: npm ci
+
+      - name: Build WordPress
+        run: npm run build
+
+      - name: Create ZIP of built files
+        run: zip -r develop.zip build/.
+
+      - name: Upload ZIP as a GitHub Actions artifact
+        uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08 # v4.6.0
+        with:
+          name: wordpress-develop
+          path: develop.zip
+          if-no-files-found: error
+
   # ...
   upgrade-tests-develop:
     name: ${{ matrix.wp }}
     uses: ./.github/workflows/reusable-upgrade-testing.yml
     if: ${{ github.repository == 'WordPress/wordpress-develop' || github.event_name == 'pull_request' }}
+    needs: [ build ]
     strategy:
       fail-fast: false
       matrix:
@@ -54,10 +107,8 @@ jobs:
       db-version: ${{ matrix.db-version }}
       wp: ${{ matrix.wp }}
       new-version: develop
-      run-id: ${{ inputs.run-id || github.event.workflow_run.id }}
       multisite: ${{ matrix.multisite }}
 
-
   slack-notifications:
     name: Slack Notifications
     uses: ./.github/workflows/slack-notifications.yml

From 6b838ecdf5ec78d4e33af61d49a277cd8a67891b Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Tue, 4 Feb 2025 21:02:28 +0000
Subject: [PATCH 08/18] Don't need this.

---
 .github/workflows/test-build-processes.yml | 44 +++++++++++-----------
 1 file changed, 22 insertions(+), 22 deletions(-)

diff --git a/.github/workflows/test-build-processes.yml b/.github/workflows/test-build-processes.yml
index 2170bc689b8c3..139aebc073ae8 100644
--- a/.github/workflows/test-build-processes.yml
+++ b/.github/workflows/test-build-processes.yml
@@ -9,28 +9,28 @@ on:
     tags:
       - '[0-9]+.[0-9]'
       - '[0-9]+.[0-9].[0-9]+'
-  pull_request:
-    branches:
-      - trunk
-      - '3.[7-9]'
-      - '[4-9].[0-9]'
-    paths:
-      # Any change to a PHP, CSS, JavaScript, or JSON file should run checks.
-      - '**.css'
-      - '**.js'
-      - '**.json'
-      - '**.php'
-      # These files configure npm and the task runner. Changes could affect the outcome.
-      - 'package*.json'
-      - 'Gruntfile.js'
-      - 'webpack.config.js'
-      - 'tools/webpack/**'
-      # These files configure Composer. Changes could affect the outcome.
-      - 'composer.*'
-      # Confirm any changes to relevant workflow files.
-      - '.github/workflows/test-build-processes.yml'
-      - '.github/workflows/reusable-test-core-build-process.yml'
-      - '.github/workflows/reusable-test-gutenberg-build-process.yml'
+  # pull_request:
+  #   branches:
+  #     - trunk
+  #     - '3.[7-9]'
+  #     - '[4-9].[0-9]'
+  #   paths:
+  #     # Any change to a PHP, CSS, JavaScript, or JSON file should run checks.
+  #     - '**.css'
+  #     - '**.js'
+  #     - '**.json'
+  #     - '**.php'
+  #     # These files configure npm and the task runner. Changes could affect the outcome.
+  #     - 'package*.json'
+  #     - 'Gruntfile.js'
+  #     - 'webpack.config.js'
+  #     - 'tools/webpack/**'
+  #     # These files configure Composer. Changes could affect the outcome.
+  #     - 'composer.*'
+  #     # Confirm any changes to relevant workflow files.
+  #     - '.github/workflows/test-build-processes.yml'
+  #     - '.github/workflows/reusable-test-core-build-process.yml'
+  #     - '.github/workflows/reusable-test-gutenberg-build-process.yml'
   workflow_dispatch:
 
 # Cancels all previous workflow runs for pull requests that have not completed.

From 6ad708d50e0985051f59f6bb13f86bb571c76d63 Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Tue, 4 Feb 2025 21:09:21 +0000
Subject: [PATCH 09/18] Naming.

---
 .github/workflows/upgrade-develop-testing.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/upgrade-develop-testing.yml b/.github/workflows/upgrade-develop-testing.yml
index 758725ada55fc..0af4002a7508d 100644
--- a/.github/workflows/upgrade-develop-testing.yml
+++ b/.github/workflows/upgrade-develop-testing.yml
@@ -82,7 +82,7 @@ jobs:
 
   # ...
   upgrade-tests-develop:
-    name: ${{ matrix.wp }}
+    name: Upgrade from ${{ matrix.wp }}
     uses: ./.github/workflows/reusable-upgrade-testing.yml
     if: ${{ github.repository == 'WordPress/wordpress-develop' || github.event_name == 'pull_request' }}
     needs: [ build ]

From 493cea472934e6e83bee199f91fb2d9e1da240e5 Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Tue, 4 Feb 2025 21:10:20 +0000
Subject: [PATCH 10/18] Correct the directory structure in the ZIP.

---
 .github/workflows/upgrade-develop-testing.yml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/upgrade-develop-testing.yml b/.github/workflows/upgrade-develop-testing.yml
index 0af4002a7508d..31d76535f87c0 100644
--- a/.github/workflows/upgrade-develop-testing.yml
+++ b/.github/workflows/upgrade-develop-testing.yml
@@ -70,8 +70,11 @@ jobs:
       - name: Build WordPress
         run: npm run build
 
+      - name: Prepare the directory structure for the ZIP
+        run: mv build wordpress
+
       - name: Create ZIP of built files
-        run: zip -r develop.zip build/.
+        run: zip -q -r develop.zip build/.
 
       - name: Upload ZIP as a GitHub Actions artifact
         uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08 # v4.6.0

From f755ce0c17705e6d9f09785313bab95ef72fce86 Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Tue, 4 Feb 2025 21:12:59 +0000
Subject: [PATCH 11/18] Oops.

---
 .github/workflows/upgrade-develop-testing.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/upgrade-develop-testing.yml b/.github/workflows/upgrade-develop-testing.yml
index 31d76535f87c0..b29b5b9be9e38 100644
--- a/.github/workflows/upgrade-develop-testing.yml
+++ b/.github/workflows/upgrade-develop-testing.yml
@@ -74,7 +74,7 @@ jobs:
         run: mv build wordpress
 
       - name: Create ZIP of built files
-        run: zip -q -r develop.zip build/.
+        run: zip -q -r develop.zip wordpress/.
 
       - name: Upload ZIP as a GitHub Actions artifact
         uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08 # v4.6.0

From dcb89dfc24e5d3099e61bf8a7c3cdaa556c05879 Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Tue, 4 Feb 2025 21:20:00 +0000
Subject: [PATCH 12/18] Add some version debugging.

---
 .github/workflows/reusable-upgrade-testing.yml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/.github/workflows/reusable-upgrade-testing.yml b/.github/workflows/reusable-upgrade-testing.yml
index 31380f67e3291..7ad67a2378002 100644
--- a/.github/workflows/reusable-upgrade-testing.yml
+++ b/.github/workflows/reusable-upgrade-testing.yml
@@ -96,9 +96,15 @@ jobs:
           --url=http://localhost/ --title="Upgrade Test" --admin_user=admin \
           --admin_password=password --admin_email=me@example.org --skip-email
 
+      - name: Pre-upgrade version check
+        run: wp core version
+
       - name: Update to the latest minor version
         run: wp core update --minor
 
+      - name: Post-upgrade version check after the minor update
+        run: wp core version
+
       - name: Download build artifact for the current branch
         if: ${{ inputs.new-version == 'develop' }}
         uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
@@ -116,3 +122,6 @@ jobs:
           wp core update ${{ 'latest' != inputs.new-version && '--version="${WP_VERSION}"' || '' }}
         env:
           WP_VERSION: ${{ inputs.new-version }}
+
+      - name: Post-upgrade version check
+        run: wp core version

From 76a0eac8a992498de7a1b82fa01c17e7389d2215 Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Tue, 4 Feb 2025 21:20:26 +0000
Subject: [PATCH 13/18] Expand this a little.

---
 .github/workflows/upgrade-develop-testing.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/upgrade-develop-testing.yml b/.github/workflows/upgrade-develop-testing.yml
index b29b5b9be9e38..40da7ec72643f 100644
--- a/.github/workflows/upgrade-develop-testing.yml
+++ b/.github/workflows/upgrade-develop-testing.yml
@@ -96,7 +96,7 @@ jobs:
         php: [ '7.2', '8.4' ]
         db-type: [ 'mysql' ]
         db-version: [ '5.7', '8.4' ]
-        wp: [ '6.6', '6.7' ]
+        wp: [ '6.5', '6.6', '6.7' ]
         multisite: [ false, true ]
 
         exclude:

From 14ba1a71bb722551f087a1a42c374e82fc214984 Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Tue, 4 Feb 2025 21:23:55 +0000
Subject: [PATCH 14/18] Add database upgrades.

---
 .github/workflows/reusable-upgrade-testing.yml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/.github/workflows/reusable-upgrade-testing.yml b/.github/workflows/reusable-upgrade-testing.yml
index 7ad67a2378002..4320b4d7ed956 100644
--- a/.github/workflows/reusable-upgrade-testing.yml
+++ b/.github/workflows/reusable-upgrade-testing.yml
@@ -102,6 +102,9 @@ jobs:
       - name: Update to the latest minor version
         run: wp core update --minor
 
+      - name: Update the database after the minor update
+        run: wp core update-db
+
       - name: Post-upgrade version check after the minor update
         run: wp core version
 
@@ -123,5 +126,8 @@ jobs:
         env:
           WP_VERSION: ${{ inputs.new-version }}
 
+      - name: Update the database
+        run: wp core update-db
+
       - name: Post-upgrade version check
         run: wp core version

From 7987943e9fba7058820deb9e132316b6fe4b38b0 Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Tue, 4 Feb 2025 21:37:15 +0000
Subject: [PATCH 15/18] Do a network database upgrade on Multisite.

---
 .github/workflows/reusable-upgrade-testing.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/reusable-upgrade-testing.yml b/.github/workflows/reusable-upgrade-testing.yml
index 4320b4d7ed956..4a41c6a974ce5 100644
--- a/.github/workflows/reusable-upgrade-testing.yml
+++ b/.github/workflows/reusable-upgrade-testing.yml
@@ -103,7 +103,7 @@ jobs:
         run: wp core update --minor
 
       - name: Update the database after the minor update
-        run: wp core update-db
+        run: wp core update-db ${{ inputs.multisite && '--network' || '' }}
 
       - name: Post-upgrade version check after the minor update
         run: wp core version
@@ -127,7 +127,7 @@ jobs:
           WP_VERSION: ${{ inputs.new-version }}
 
       - name: Update the database
-        run: wp core update-db
+        run: wp core update-db ${{ inputs.multisite && '--network' || '' }}
 
       - name: Post-upgrade version check
         run: wp core version

From f876e1a2f28bb5dff4f85efb952b8b637bba9969 Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Tue, 4 Feb 2025 21:38:43 +0000
Subject: [PATCH 16/18] Docs.

---
 .github/workflows/upgrade-develop-testing.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/upgrade-develop-testing.yml b/.github/workflows/upgrade-develop-testing.yml
index 40da7ec72643f..45a1ffc6ffa70 100644
--- a/.github/workflows/upgrade-develop-testing.yml
+++ b/.github/workflows/upgrade-develop-testing.yml
@@ -42,7 +42,7 @@ concurrency:
 # Any needed permissions should be configured at the job level.
 permissions: {}
 
-# ...
+# Build WordPress from the current branch ready for the upgrade tests.
 jobs:
   build:
     name: Build
@@ -83,7 +83,7 @@ jobs:
           path: develop.zip
           if-no-files-found: error
 
-  # ...
+  # Run upgrade tests for the current branch.
   upgrade-tests-develop:
     name: Upgrade from ${{ matrix.wp }}
     uses: ./.github/workflows/reusable-upgrade-testing.yml

From 929d5493bf0eb07503bb25ad6ed7d9c91f2f301d Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Mon, 10 Feb 2025 11:33:45 +0100
Subject: [PATCH 17/18] Docs.

---
 .github/workflows/reusable-upgrade-testing.yml | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/reusable-upgrade-testing.yml b/.github/workflows/reusable-upgrade-testing.yml
index 4a41c6a974ce5..7b9f542041165 100644
--- a/.github/workflows/reusable-upgrade-testing.yml
+++ b/.github/workflows/reusable-upgrade-testing.yml
@@ -14,7 +14,7 @@ on:
         required: true
         type: 'string'
       new-version:
-        description: 'The version of WordPress to update to. Use "latest" to update to the latest version, or "develop" to update to the current branch.'
+        description: 'The version of WordPress to update to. Use "latest" to update to the latest version, "develop" to update to the current branch, or provide a specific version number to update to.'
         type: 'string'
         default: 'latest'
       php:
@@ -49,8 +49,13 @@ jobs:
   # - Downloads the specified version of WordPress.
   # - Creates a `wp-config.php` file.
   # - Installs WordPress.
+  # - Checks the version of WordPress before the upgrade.
   # - Updates to the latest minor version.
+  # - Updates the database after the minor update.
+  # - Checks the version of WordPress after the minor update.
   # - Updates to the version of WordPress being tested.
+  # - Updates the database.
+  # - Checks the version of WordPress after the upgrade.
   upgrade-tests:
     name: ${{ inputs.wp }} to ${{ inputs.new-version }} / PHP ${{ inputs.php }} with ${{ 'mariadb' == inputs.db-type && 'MariaDB' || 'MySQL' }} ${{ inputs.db-version }}${{ inputs.multisite && ' multisite' || '' }}
     permissions: {}

From 2c99c4622ea1fac8518abee1e6e0a752c44aa6d2 Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@gmail.com>
Date: Mon, 10 Feb 2025 11:56:23 +0100
Subject: [PATCH 18/18] Split the build into a reusable workflow.

---
 .github/workflows/reusable-build-package.yml  | 60 +++++++++++++++++++
 .github/workflows/upgrade-develop-testing.yml | 37 +-----------
 2 files changed, 62 insertions(+), 35 deletions(-)
 create mode 100644 .github/workflows/reusable-build-package.yml

diff --git a/.github/workflows/reusable-build-package.yml b/.github/workflows/reusable-build-package.yml
new file mode 100644
index 0000000000000..f7c744af7c34a
--- /dev/null
+++ b/.github/workflows/reusable-build-package.yml
@@ -0,0 +1,60 @@
+##
+# A reusable workflow that builds and packages WordPress. The resulting package can be used to test upgrading and installing.
+##
+name: Build and package WordPress
+
+on:
+  workflow_call:
+
+# Disable permissions for all available scopes by default.
+# Any needed permissions should be configured at the job level.
+permissions: {}
+
+jobs:
+  # Builds and packages WordPress.
+  #
+  # Performs the following steps:
+  # - Checks out the repository.
+  # - Sets up Node.js.
+  # - Runs the build script.
+  # - Prepares the directory structure for the ZIP.
+  # - Creates a ZIP of the built files.
+  # - Uploads the ZIP as a GitHub Actions artifact.
+  build:
+    name: WordPress
+    permissions:
+      contents: read
+    runs-on: ubuntu-24.04
+    timeout-minutes: 20
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
+          persist-credentials: false
+
+      - name: Set up Node.js
+        uses: actions/setup-node@1d0ff469b7ec7b3cb9d8673fde0c81c44821de2a # v4.2.0
+        with:
+          node-version-file: '.nvmrc'
+          cache: npm
+
+      - name: Install npm Dependencies
+        run: npm ci
+
+      - name: Build WordPress
+        run: npm run build
+
+      - name: Prepare the directory structure for the ZIP
+        run: mv build wordpress
+
+      - name: Create ZIP of built files
+        run: zip -q -r develop.zip wordpress/.
+
+      - name: Upload ZIP as a GitHub Actions artifact
+        uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08 # v4.6.0
+        with:
+          name: wordpress-develop
+          path: develop.zip
+          if-no-files-found: error
diff --git a/.github/workflows/upgrade-develop-testing.yml b/.github/workflows/upgrade-develop-testing.yml
index 45a1ffc6ffa70..edb57bc8d6e88 100644
--- a/.github/workflows/upgrade-develop-testing.yml
+++ b/.github/workflows/upgrade-develop-testing.yml
@@ -42,46 +42,13 @@ concurrency:
 # Any needed permissions should be configured at the job level.
 permissions: {}
 
-# Build WordPress from the current branch ready for the upgrade tests.
 jobs:
+  # Build WordPress from the current branch ready for the upgrade tests.
   build:
     name: Build
+    uses: ./.github/workflows/reusable-build-package.yml
     permissions:
       contents: read
-    runs-on: ubuntu-24.04
-    timeout-minutes: 20
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
-          persist-credentials: false
-
-      - name: Set up Node.js
-        uses: actions/setup-node@1d0ff469b7ec7b3cb9d8673fde0c81c44821de2a # v4.2.0
-        with:
-          node-version-file: '.nvmrc'
-          cache: npm
-
-      - name: Install npm Dependencies
-        run: npm ci
-
-      - name: Build WordPress
-        run: npm run build
-
-      - name: Prepare the directory structure for the ZIP
-        run: mv build wordpress
-
-      - name: Create ZIP of built files
-        run: zip -q -r develop.zip wordpress/.
-
-      - name: Upload ZIP as a GitHub Actions artifact
-        uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08 # v4.6.0
-        with:
-          name: wordpress-develop
-          path: develop.zip
-          if-no-files-found: error
 
   # Run upgrade tests for the current branch.
   upgrade-tests-develop: