diff --git a/.github/jobs/fix_pipelinecomponents_image.sh b/.github/jobs/fix_pipelinecomponents_image.sh
index 8723b86f1b..32d77a1e52 100755
--- a/.github/jobs/fix_pipelinecomponents_image.sh
+++ b/.github/jobs/fix_pipelinecomponents_image.sh
@@ -15,10 +15,19 @@ mydir=$(pwd)
 
 echo "Before /app/composer.json:"
 cat /app/composer.json
-sed -i 's/"phpcompatibility\/php-compatibility": "9.3.5"/"phpcompatibility\/php-compatibility": "dev-develop"/g' /app/composer.json
-sed -i 's/"squizlabs\/php_codesniffer": "3.13.2"/"squizlabs\/php_codesniffer": "^3.13.3"/g' /app/composer.json
+
+echo "Install the only needed tool"
+rm /app/composer.json
+cd /app
+set +eu
+composer require phpcompatibility/php-compatibility:dev-develop
+set -eu
+
+composer config --no-plugins allow-plugins.dealerdirect/phpcodesniffer-composer-installer true
+
 echo "After /app/composer.json:"
 cat /app/composer.json
 
-cd /app; composer update
+echo "Install the needed tools"
+composer update
 cd $mydir
diff --git a/.github/workflows/codestyle.yml b/.github/workflows/codestyle.yml
index 0dbddf8f72..48f3c3d62a 100644
--- a/.github/workflows/codestyle.yml
+++ b/.github/workflows/codestyle.yml
@@ -40,6 +40,35 @@ jobs:
           webapp/public
           webapp/config
 
+  phpcs_compatibility_new_style:
+    runs-on: ubuntu-latest
+    container:
+      image: domjudge/gitlabci:24.04
+    strategy:
+      matrix:
+        PHPVERSION: ["8.1", "8.2", "8.3", "8.4", "8.5"]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Trigger the plugin
+        run: |
+          olddir=`pwd`
+          cd /
+          composer install
+          cd "$olddir"
+      - name: Detect compatibility with supported PHP version
+        run: >
+          /vendor/bin/phpcs -s -p --colors
+          --standard=PHPCompatibility
+          --extensions=php
+          --runtime-set testVersion ${{ matrix.PHPVERSION }}
+          lib/lib.*.php
+          etc
+          judge
+          webapp/src
+          webapp/tests
+          webapp/public
+          webapp/config
+
   phpcs_compatibility:
     runs-on: ubuntu-latest
     container:
diff --git a/judge/judgedaemon.main.php b/judge/judgedaemon.main.php
index 4b4a56ae4d..0cd34901de 100644
--- a/judge/judgedaemon.main.php
+++ b/judge/judgedaemon.main.php
@@ -1779,5 +1779,30 @@ private function initsignals(): void
     }
 }
 
+$result = "Hello World"
+    |> strtoupper(...)
+    |> str_shuffle(...)
+    |> trim(...);
+
+interface I {
+    // We may naively assume that the PHP constant is always a string.
+    const PHP = 'PHP 8.2';
+}
+
+class Foo implements I {
+    // But implementing classes may define it as an array.
+    const PHP = [];
+}
+
+class Foo2 {
+    const PHP = 'PHP 8.3';
+}
+
+$searchableConstant = 'PHP';
+
+var_dump(json_validate('{ "test": { "foo": "bar" } }')); // true
+
+var_dump(Foo2::{$searchableConstant});
+
 $daemon = new JudgeDaemon();
 $daemon->run();