diff --git a/.github/workflows/continuous-integration.yaml b/.github/workflows/continuous-integration.yaml
index c71039d..c5822a4 100644
--- a/.github/workflows/continuous-integration.yaml
+++ b/.github/workflows/continuous-integration.yaml
@@ -10,6 +10,7 @@ jobs:
   phpunit:
     name: PHPUnit (PHP ${{ matrix.php-version }} - Symfony ${{ matrix.symfony-version }})
     runs-on: ubuntu-24.04
+    continue-on-error: ${{ matrix.continue-on-error || false }}
     env:
       SYMFONY_REQUIRE: ${{ matrix.symfony-version }}
 
@@ -22,7 +23,15 @@ jobs:
           - '8.5'
         symfony-version:
           - '6.4.*'
-          - '7.2.*'
+          - '7.3.*'
+          - '7.4.*@dev'
+        include:
+          - php-version: '8.4'
+            symfony-version: '8.0.*@dev'
+            continue-on-error: true
+          - php-version: '8.5'
+            symfony-version: '8.0.*@dev'
+            continue-on-error: true
 
     steps:
       - name: Checkout code
@@ -35,14 +44,14 @@ jobs:
         with:
           coverage: pcov
           php-version: ${{ matrix.php-version }}
+          tools: flex
 
       - name: Install Imagemagick
         run: sudo apt-get update && sudo apt-get install -y imagemagick
 
-      - name: Install Symfony Flex
-        run: |
-          composer config --global --no-plugins allow-plugins.symfony/flex true
-          composer global require --no-progress --no-scripts --no-plugins symfony/flex
+      - name: Configure Composer minimum-stability for dev versions
+        if: contains(matrix.symfony-version, 'dev')
+        run: composer config minimum-stability dev
 
       - name: Install Composer dependencies
         uses: ramsey/composer-install@v3
diff --git a/CHANGELOG-5.x.md b/CHANGELOG-5.x.md
index 831d98c..b2ef51f 100644
--- a/CHANGELOG-5.x.md
+++ b/CHANGELOG-5.x.md
@@ -2,6 +2,7 @@
 -----
 
 * Test against PHP 8.5
+* Allow Symfony 8
 
 5.1.1
 -----
diff --git a/README.md b/README.md
index a44b20e..8cad50b 100644
--- a/README.md
+++ b/README.md
@@ -24,8 +24,9 @@ See the [Documentation and examples](https://im-bundle.leapt.dev/)
 Versions & dependencies
 -----------------------
 
-The current version (5.x) of the bundle works with Symfony 6.4 & Symfony 7.0+.
+The current version (5.x) of the bundle works with Symfony 6.4, 7.0+ & 8.0+.
 The project follows SemVer.
+Only the last major version is maintained.
 
 You can check the [changelog](CHANGELOG-5.x.md) for version 5 and the [upgrade document](UPGRADE-5.x.md) when upgrading
 from 4.x bundle version.
diff --git a/composer.json b/composer.json
index de6a478..6a7a440 100644
--- a/composer.json
+++ b/composer.json
@@ -29,14 +29,14 @@
         "ext-curl": "*",
         "doctrine/orm": "^2.5 || ^3.0",
         "leapt/core-bundle": "^5.0",
-        "symfony/css-selector": "^6.4 || ^7.0",
-        "symfony/console": "^6.4 || ^7.0",
-        "symfony/dom-crawler": "^6.4 || ^7.0",
-        "symfony/filesystem": "^6.4 || ^7.0",
-        "symfony/finder": "^6.4 || ^7.0",
-        "symfony/form": "^6.4 || ^7.0",
-        "symfony/framework-bundle": "^6.4 || ^7.0",
-        "symfony/process": "^6.4 || ^7.0",
+        "symfony/css-selector": "^6.4 || ^7.0 || ^8.0",
+        "symfony/console": "^6.4 || ^7.0 || ^8.0",
+        "symfony/dom-crawler": "^6.4 || ^7.0 || ^8.0",
+        "symfony/filesystem": "^6.4 || ^7.0 || ^8.0",
+        "symfony/finder": "^6.4 || ^7.0 || ^8.0",
+        "symfony/form": "^6.4 || ^7.0 || ^8.0",
+        "symfony/framework-bundle": "^6.4 || ^7.0 || ^8.0",
+        "symfony/process": "^6.4 || ^7.0 || ^8.0",
         "twig/twig": "^3.0"
     },
     "require-dev": {
@@ -44,7 +44,7 @@
         "phpstan/phpstan": "^2.1.22",
         "phpstan/phpstan-deprecation-rules": "^2.0.3",
         "phpunit/phpunit": "^11.5.35",
-        "symfony/browser-kit": "^6.4 || ^7.0",
+        "symfony/browser-kit": "^6.4 || ^7.0 || ^8.0",
         "symplify/easy-coding-standard": "^12.5.24"
     },
     "scripts": {
diff --git a/docs/installation.md b/docs/installation.md
index a6a8281..0764a55 100644
--- a/docs/installation.md
+++ b/docs/installation.md
@@ -4,7 +4,7 @@
 
 * You need to have the ImageMagick binaries available (convert & mogrify)
 * You need to have a cache folder in your web dir, writeable by the webserver
-* Symfony 6.4/7.0+
+* Symfony 6.4/7.0+/8.0+
 * PHP 8.2+
 
 ## Install steps
diff --git a/tests/Listener/MogrifySubscriberTest.php b/tests/Listener/MogrifySubscriberTest.php
index 36fb6c6..05021f8 100644
--- a/tests/Listener/MogrifySubscriberTest.php
+++ b/tests/Listener/MogrifySubscriberTest.php
@@ -56,6 +56,10 @@ private function buildEntityManager(): EntityManagerInterface
         $config->setMetadataDriverImpl(new AttributeDriver([__DIR__ . '/Fixtures']));
         $config->setAutoGenerateProxyClasses(true);
 
+        if (\PHP_VERSION_ID >= 80400) {
+            $config->enableNativeLazyObjects(true);
+        }
+
         $params = [
             'driver' => 'pdo_sqlite',
             'memory' => true,