diff --git a/.github/workflows/reusable-phpunit-test.yml b/.github/workflows/reusable-phpunit-test.yml
index d5e492710c7a..3805a8744c30 100644
--- a/.github/workflows/reusable-phpunit-test.yml
+++ b/.github/workflows/reusable-phpunit-test.yml
@@ -266,7 +266,7 @@ jobs:
           DB: ${{ inputs.db-platform }}
           TACHYCARDIA_MONITOR_GA: ${{ inputs.enable-profiling && 'enabled' || '' }}
           TERM: xterm-256color
-        continue-on-error: ${{ inputs.php-version == '8.5' }}
+        continue-on-error: ${{ inputs.php-version == '8.6' }}
 
       - name: Upload coverage results as artifact
         if: ${{ inputs.enable-artifact-upload }}
diff --git a/.github/workflows/reusable-serviceless-phpunit-test.yml b/.github/workflows/reusable-serviceless-phpunit-test.yml
index 60186d6eaa84..c82cd251519e 100644
--- a/.github/workflows/reusable-serviceless-phpunit-test.yml
+++ b/.github/workflows/reusable-serviceless-phpunit-test.yml
@@ -124,6 +124,7 @@ jobs:
         env:
           TACHYCARDIA_MONITOR_GA: ${{ inputs.enable-profiling && 'enabled' || '' }}
           TERM: xterm-256color
+        continue-on-error: ${{ inputs.php-version == '8.6' }}
 
       - name: Upload coverage results as artifact
         if: ${{ inputs.enable-artifact-upload }}
diff --git a/.github/workflows/test-coding-standards.yml b/.github/workflows/test-coding-standards.yml
index 274cc5311e2a..842f2664e76e 100644
--- a/.github/workflows/test-coding-standards.yml
+++ b/.github/workflows/test-coding-standards.yml
@@ -30,7 +30,7 @@ jobs:
         php-version:
           - '8.2'
         include:
-          - php-version: '8.5'
+          - php-version: '8.6'
             composer-option: '--ignore-platform-req=php'
 
     steps:
diff --git a/.github/workflows/test-phpunit.yml b/.github/workflows/test-phpunit.yml
index 8c17cae53de6..bd8dcbc6da95 100644
--- a/.github/workflows/test-phpunit.yml
+++ b/.github/workflows/test-phpunit.yml
@@ -60,6 +60,9 @@ jobs:
           - '8.3'
           - '8.4'
           - '8.5'
+        include:
+          - php-version: '8.6'
+            composer-option: '--ignore-platform-req=php'
 
     uses: ./.github/workflows/reusable-phpunit-test.yml # @TODO Extract to codeigniter4/.github repo
     with:
@@ -86,6 +89,7 @@ jobs:
           - '8.3'
           - '8.4'
           - '8.5'
+          - '8.6'
         db-platform:
           - MySQLi
           - OCI8
@@ -98,6 +102,8 @@ jobs:
           - php-version: '8.2'
             db-platform: MySQLi
             mysql-version: '5.7'
+          - php-version: '8.6'
+            composer-option: '--ignore-platform-req=php'
 
     uses: ./.github/workflows/reusable-phpunit-test.yml # @TODO Extract to codeigniter4/.github repo
     with:
@@ -125,6 +131,9 @@ jobs:
           - '8.3'
           - '8.4'
           - '8.5'
+        include:
+        - php-version: '8.5'
+          composer-option: '--ignore-platform-req=php'
 
     uses: ./.github/workflows/reusable-phpunit-test.yml # @TODO Extract to codeigniter4/.github repo
     with:
@@ -150,6 +159,9 @@ jobs:
           - '8.3'
           - '8.4'
           - '8.5'
+        include:
+          - php-version: '8.5'
+            composer-option: '--ignore-platform-req=php'
 
     uses: ./.github/workflows/reusable-phpunit-test.yml # @TODO Extract to codeigniter4/.github repo
     with:
diff --git a/composer.json b/composer.json
index 26e76bd3f853..932c0c7611d1 100644
--- a/composer.json
+++ b/composer.json
@@ -93,7 +93,8 @@
             "CodeIgniter\\ComposerScripts::postUpdate"
         ],
         "post-autoload-dump": [
-            "@composer update --ansi --working-dir=utils"
+            "@php -r \"if (PHP_VERSION_ID >= 80500) { echo '@todo Remove \"--ignore-platform-req=php\" once deps catch up.', PHP_EOL; }\"",
+            "@composer update --ansi --working-dir=utils --ignore-platform-req=php"
         ],
         "analyze": [
             "Composer\\Config::disableProcessTimeout",