diff --git a/.github/workflows/local-docker-environment.yml b/.github/workflows/local-docker-environment.yml
index 9e9b1259ea60d..bf275abd72205 100644
--- a/.github/workflows/local-docker-environment.yml
+++ b/.github/workflows/local-docker-environment.yml
@@ -92,7 +92,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-24.04 ]
-        memcached: [ false ]
+        memcached: [ false, true ]
         php: ${{ fromJSON( needs.build-test-matrix.outputs.php-versions ) }}
         db-version: ${{ fromJSON( needs.build-test-matrix.outputs.mysql-versions ) }}
 
diff --git a/.github/workflows/performance.yml b/.github/workflows/performance.yml
index 2db92975d7b28..43970724574ae 100644
--- a/.github/workflows/performance.yml
+++ b/.github/workflows/performance.yml
@@ -101,7 +101,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        memcached: [ false ]
+        memcached: [ false, true ]
         multisite: [ true, false ]
         subject: ${{ fromJson( needs.determine-matrix.outputs.subjects ) }}
     with:
@@ -119,7 +119,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        memcached: [ false ]
+        memcached: [ false, true ]
         multisite: [ true, false ]
         # A matrix value is needed in the 'name' directive for proper grouping in the GitHub UI.
         label: [ Compare ]
diff --git a/.github/workflows/reusable-end-to-end-tests.yml b/.github/workflows/reusable-end-to-end-tests.yml
index 187ea7e241bb1..b0a70156bf137 100644
--- a/.github/workflows/reusable-end-to-end-tests.yml
+++ b/.github/workflows/reusable-end-to-end-tests.yml
@@ -81,12 +81,6 @@ jobs:
           show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
           persist-credentials: false
 
-      - name: Create a Docker override file
-        if: ${{ contains( fromJSON('["8.3", "8.4"]'), inputs.php-version ) }}
-        env:
-          PHP_VERSION: ${{ inputs.php-version }}
-        run: cp "tools/local-env/php-$PHP_VERSION-docker-compose.override.yml" docker-compose.override.yml
-
       - name: Set up Node.js
         uses: actions/setup-node@cdca7365b2dadb8aad0a33bc7601856ffabcc48e # v4.3.0
         with:
diff --git a/.github/workflows/reusable-performance-test-v2.yml b/.github/workflows/reusable-performance-test-v2.yml
index a61234afb5e33..94b5f9933e65f 100644
--- a/.github/workflows/reusable-performance-test-v2.yml
+++ b/.github/workflows/reusable-performance-test-v2.yml
@@ -121,12 +121,6 @@ jobs:
           fetch-depth: ${{ github.event_name == 'workflow_dispatch' && '2' || '1' }}
           persist-credentials: false
 
-      - name: Create a Docker override file
-        if: ${{ contains( fromJSON('["8.3", "8.4"]'), inputs.php-version ) }}
-        env:
-          PHP_VERSION: ${{ inputs.php-version }}
-        run: cp "tools/local-env/php-$PHP_VERSION-docker-compose.override.yml" docker-compose.override.yml
-
       - name: Set up Node.js
         uses: actions/setup-node@cdca7365b2dadb8aad0a33bc7601856ffabcc48e # v4.3.0
         with:
diff --git a/.github/workflows/reusable-phpunit-tests-v3.yml b/.github/workflows/reusable-phpunit-tests-v3.yml
index bae7dd436f5a3..fd4b83fdd4807 100644
--- a/.github/workflows/reusable-phpunit-tests-v3.yml
+++ b/.github/workflows/reusable-phpunit-tests-v3.yml
@@ -136,12 +136,6 @@ jobs:
           show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
           persist-credentials: false
 
-      - name: Create a Docker override file
-        if: ${{ contains( fromJSON('["8.3", "8.4"]'), inputs.php ) }}
-        env:
-          PHP_VERSION: ${{ inputs.php }}
-        run: cp "tools/local-env/php-${{ env.PHP_VERSION }}-docker-compose.override.yml" docker-compose.override.yml
-
       - name: Set up Node.js
         uses: actions/setup-node@cdca7365b2dadb8aad0a33bc7601856ffabcc48e # v4.3.0
         with:
diff --git a/.github/workflows/reusable-test-local-docker-environment-v1.yml b/.github/workflows/reusable-test-local-docker-environment-v1.yml
index d62f4a1eb91e3..bc9b3d316d599 100644
--- a/.github/workflows/reusable-test-local-docker-environment-v1.yml
+++ b/.github/workflows/reusable-test-local-docker-environment-v1.yml
@@ -91,12 +91,6 @@ jobs:
           show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
           persist-credentials: false
 
-      - name: Create a Docker override file
-        if: ${{ contains( fromJSON('["8.3", "8.4"]'), inputs.php ) }}
-        env:
-          PHP_VERSION: ${{ inputs.php }}
-        run: cp "tools/local-env/php-$PHP_VERSION-docker-compose.override.yml" docker-compose.override.yml
-
       - name: Set up Node.js
         uses: actions/setup-node@cdca7365b2dadb8aad0a33bc7601856ffabcc48e # v4.3.0
         with:
diff --git a/tools/local-env/php-8.3-docker-compose.override.yml b/tools/local-env/php-8.3-docker-compose.override.yml
deleted file mode 100644
index c9e2a647b4b8d..0000000000000
--- a/tools/local-env/php-8.3-docker-compose.override.yml
+++ /dev/null
@@ -1,16 +0,0 @@
-# This override file is a temporary solution to force the use of specific versions of the
-# `wordpressdevelop/php` and `wordpressdevelop/cli` images while the cause of recent failures
-# can be investigated. See https://core.trac.wordpress.org/ticket/63876.
-services:
-
-  php:
-    image: wordpressdevelop/php@sha256:c0ba85936a9d1ac2c98bf3da2d62ceb0e5787a6b11e383630df0c5a5bf2534b5
-
-  cli:
-    image: wordpressdevelop/cli@sha256:85ad7d7a9c3bd9a8775fc83aea7f7dfc0aad25b2bc4f7d740696b28cd2a0ef89
-
-  memcached:
-    # Pinning to the latest `bookworm` image is a temporary solution
-    # while the cause of recent failures can be investigated.
-    # See https://core.trac.wordpress.org/ticket/63876.
-    image: memcached:1.6.38-bookworm
diff --git a/tools/local-env/php-8.4-docker-compose.override.yml b/tools/local-env/php-8.4-docker-compose.override.yml
deleted file mode 100644
index 12f07e788c2b8..0000000000000
--- a/tools/local-env/php-8.4-docker-compose.override.yml
+++ /dev/null
@@ -1,16 +0,0 @@
-# This override file is a temporary solution to force the use of specific versions of the
-# `wordpressdevelop/php` and `wordpressdevelop/cli` images while the cause of recent failures
-# can be investigated. See https://core.trac.wordpress.org/ticket/63876.
-services:
-
-  php:
-    image: wordpressdevelop/php@sha256:56d6cbf10d25bfcb80852c09c2fc2e967922881b233b6161ad2999df509eb59a
-
-  cli:
-    image: wordpressdevelop/cli@sha256:379f27b0c623c5cee5a7fbef1d617ce47fd3ba19158bac2e51861876fd68fdbf
-
-  memcached:
-    # Pinning to the latest `bookworm` image is a temporary solution
-    # while the cause of recent failures can be investigated.
-    # See https://core.trac.wordpress.org/ticket/63876.
-    image: memcached:1.6.38-bookworm
diff --git a/tools/local-env/scripts/install.js b/tools/local-env/scripts/install.js
index 3ea702d021e24..44b9d1596a7ee 100644
--- a/tools/local-env/scripts/install.js
+++ b/tools/local-env/scripts/install.js
@@ -46,7 +46,7 @@ wait_on( {
 		process.exit( 1 );
 	} )
 	.then( () => {
-		wp_cli( 'db reset --yes' );
+		wp_cli( 'db reset --yes --defaults' );
 		const installCommand = process.env.LOCAL_MULTISITE === 'true'  ? 'multisite-install' : 'install';
 		wp_cli( `core ${ installCommand } --title="WordPress Develop" --admin_user=admin --admin_password=password --admin_email=test@example.com --skip-email --url=http://localhost:${process.env.LOCAL_PORT}` );
 	} )