diff --git a/.evergreen/config.yml b/.evergreen/config.yml
index 12435875a..c2258f6c2 100644
--- a/.evergreen/config.yml
+++ b/.evergreen/config.yml
@@ -609,21 +609,16 @@ axes:
   - id: driver-versions
     display_name: Driver Version
     values:
-      # TODO: Update references to master branch after PHPC 1.12 is released
-      - id: "lowest-supported"
-        # display_name: "1.11.0"
-        display_name: "1.12-dev"
+      - id: "oldest-supported"
+        display_name: "1.12.0"
         variables:
-          EXTENSION_BRANCH: "master"
+          EXTENSION_VERSION: "1.12.0"
       - id: "latest-stable"
-        # display_name: "Latest Stable (1.11.x)"
-        display_name: "1.12-dev"
+        display_name: "1.12.x"
         variables:
-          # EXTENSION_VERSION: "stable"
-          EXTENSION_BRANCH: "master"
+          EXTENSION_VERSION: "stable"
       - id: "latest-dev"
-        # display_name: "1.12-dev (master)"
-        display_name: "1.12-dev"
+        display_name: "1.13-dev (master)"
         variables:
           EXTENSION_BRANCH: "master"
 
@@ -728,20 +723,6 @@ buildvariants:
     - name: "test-replica_set"
     - name: "test-sharded_cluster"
 
-# Tests all driver versions on all PHP versions using latest MongoDB and Ubuntu 18.04
-- matrix_name: "test-driver-versions"
-  matrix_spec: { "os": "ubuntu1804-arm64-test", "edge-versions": "latest-stable", "php-versions": "*", "driver-versions": "*" }
-  exclude_spec:
-    # Avoid duplicate build variants from test-php-versions
-    - { "os": "ubuntu1804-arm64-test", "edge-versions": "latest-stable", "php-versions": "*", "driver-versions": "lowest-supported" }
-    - { "os": "ubuntu1804-arm64-test", "edge-versions": "latest-stable", "php-versions": "*", "driver-versions": "latest-stable" }
-    - { "os": "ubuntu1804-arm64-test", "edge-versions": "latest-stable", "php-versions": "*", "driver-versions": "latest-dev" }
-  display_name: "${os}, MongoDB ${edge-versions}, PHP ${php-versions}, ext-mongodb ${driver-versions}"
-  tasks:
-    - name: "test-standalone"
-    - name: "test-replica_set"
-    - name: "test-sharded_cluster"
-
 # Tests all MongoDB versions with latest stable PHP and driver versions
 - matrix_name: "test-mongodb-versions"
   matrix_spec: { "os": "debian92-test", "versions": "*", "php-edge-versions": "latest-stable", "driver-versions": "latest-stable" }
@@ -754,10 +735,10 @@ buildvariants:
     - name: "test-replica_set"
     - name: "test-sharded_cluster"
 
-# Tests all MongoDB versions with lowest supported PHP and driver versions
+# Tests all MongoDB versions with oldest supported PHP and driver versions
 # Enables --prefer-lowest for composer to test oldest dependencies against all server versions
 - matrix_name: "test-dependencies"
-  matrix_spec: { "os": "debian92-test", "versions": "*", "php-edge-versions": "oldest-supported", "driver-versions": "lowest-supported", "dependencies": "lowest" }
+  matrix_spec: { "os": "debian92-test", "versions": "*", "php-edge-versions": "oldest-supported", "driver-versions": "oldest-supported", "dependencies": "lowest" }
   display_name: "Lowest Dependencies: ${os}, MongoDB ${versions}, PHP ${php-edge-versions}, ext-mongodb ${driver-versions}"
   tasks:
     - name: "test-standalone"
diff --git a/.github/workflows/coding-standards.yml b/.github/workflows/coding-standards.yml
index b9f2fc134..0a584a558 100644
--- a/.github/workflows/coding-standards.yml
+++ b/.github/workflows/coding-standards.yml
@@ -20,7 +20,7 @@ jobs:
         php-version:
           - "7.4"
         driver-version:
-          - "mongodb/mongo-php-driver@master"
+          - "stable"
 
     steps:
       - name: "Checkout"
@@ -42,8 +42,7 @@ jobs:
           restore-keys: ${{ steps.extcache.outputs.key }}
 
       - name: "Install PHP"
-        # Todo: switch to @v2 once a tag has been created
-        uses: "shivammathur/setup-php@develop"
+        uses: "shivammathur/setup-php@v2"
         with:
           coverage: "none"
           extensions: "mongodb-${{ matrix.driver-version }}"
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index e317da929..9a9f32c4f 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -27,24 +27,24 @@ jobs:
         mongodb-version:
           - "4.4"
         driver-version:
-          - "mongodb/mongo-php-driver@master"
+          - "stable"
         topology:
           - "server"
         include:
           - os: "ubuntu-20.04"
             php-version: "8.0"
             mongodb-version: "5.0"
-            driver-version: "mongodb/mongo-php-driver@master"
+            driver-version: "stable"
             topology: "server"
           - os: "ubuntu-20.04"
             php-version: "8.0"
             mongodb-version: "4.4"
-            driver-version: "mongodb/mongo-php-driver@master"
+            driver-version: "stable"
             topology: "replica_set"
           - os: "ubuntu-20.04"
             php-version: "8.0"
             mongodb-version: "4.4"
-            driver-version: "mongodb/mongo-php-driver@master"
+            driver-version: "stable"
             topology: "sharded_cluster"
 
     steps:
@@ -75,8 +75,7 @@ jobs:
           restore-keys: ${{ steps.extcache.outputs.key }}
 
       - name: "Install PHP"
-        # Todo: switch to @v2 once a tag has been created
-        uses: "shivammathur/setup-php@develop"
+        uses: "shivammathur/setup-php@v2"
         with:
           php-version: "${{ matrix.php-version }}"
           tools: "pecl"
diff --git a/composer.json b/composer.json
index a0b0ca6e3..915b429c2 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
         "php": "^7.2 || ^8.0",
         "ext-hash": "*",
         "ext-json": "*",
-        "ext-mongodb": "^1.11.0",
+        "ext-mongodb": "^1.12.0",
         "jean85/pretty-package-versions": "^1.2 || ^2.0.1",
         "symfony/polyfill-php80": "^1.19"
     },