diff --git a/.travis.yml b/.travis.yml
index f2baf110..38f14377 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,34 +2,26 @@ dist: xenial
 language: php
 sudo: false
 
+cache:
+  directories:
+    - $HOME/.composer/cache
+
 php:
   - 7.2
   - 7.3
   - 7.4snapshot
 
+services: mongodb
+
 env:
   global:
     - DRIVER_VERSION="stable"
-    - COMPOSER_FLAGS="--prefer-dist"
-
-jobs:
-  include:
-    # Test against lowest dependencies with coverage
-    - stage: Test
-      php: 7.2
-      env: DRIVER_VERSION="1.5.0" COMPOSER_FLAGS="--prefer-dist --prefer-lowest" PHPUNIT_FLAGS="--coverage-clover=coverage.clover"
+    - COMPOSER_FLAGS=" -n --prefer-dist --prefer-stable"
+    - COMPOSER_MEMORY_LIMIT=-1
 
-    - stage: Code Quality
-      php: 7.2
-      env: DRIVER_VERSION="stable" COMPOSER_FLAGS="--prefer-dist"
-      script:
-        - vendor/bin/phpcs
-
-cache:
-  directories:
-    - $HOME/.composer/cache
-
-services: mongodb
+before_install:
+  - mv ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/xdebug.ini{,.disabled} || echo "xdebug not available"
+  - composer global require --no-update --no-progress --no-scripts --no-plugins symfony/flex dev-master
 
 install:
   - composer self-update
@@ -37,8 +29,44 @@ install:
   - composer update ${COMPOSER_FLAGS}
 
 script:
-    - ./vendor/bin/phpunit ${PHPUNIT_FLAGS}
+  - ./vendor/bin/phpunit ${PHPUNIT_FLAGS}
+
+jobs:
+  include:
+    # Tests the lowest set of dependencies
+    - php: 7.2
+      env: LOWEST DRIVER_VERSION="1.5.0" SYMFONY_DEPRECATIONS_HELPER=weak COMPOSER_FLAGS=" -n --prefer-lowest --prefer-stable --prefer-dist"
+
+    # Test against latest Symfony 3.4 stable
+    - php: 7.3
+      env: SYMFONY_REQUIRE="3.4.*"
+
+    # Test against latest Symfony 4.3 stable
+    - php: 7.3
+      env: SYMFONY_REQUIRE="4.3.*"
+
+    # Test against latest Symfony 4.4 dev
+    - php: 7.3
+      env: SYMFONY_REQUIRE="4.4.*"
+
+    # Test against latest Symfony 5.0 dev
+    - php: 7.3
+      env: SYMFONY_REQUIRE="5.0.*"
+
+    # Test dev versions
+    - php: 7.3
+      if: type = cron
+      env: DEV COMPOSER_FLAGS="-n --prefer-dist"
+
+    - stage: Code Quality
+      env: CODING_STANDARDS
+      php: 7.2
+      script:
+        - ./vendor/bin/phpcs
 
-after_script:
-  - wget https://scrutinizer-ci.com/ocular.phar
-  - php ocular.phar code-coverage:upload --format=php-clover coverage.clover
+    - stage: Coverage
+      php: 7.3
+      env: COVERAGE PHPUNIT_FLAGS="--coverage-clover=coverage.clover"
+      before_script:
+        - mv ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/xdebug.ini{.disabled,}
+        - if [[ ! $(php -m | grep -si xdebug) ]]; then echo "xdebug required for coverage"; exit 1; fi
diff --git a/Command/InfoDoctrineODMCommand.php b/Command/InfoDoctrineODMCommand.php
index f7a19ea4..e98f7f74 100644
--- a/Command/InfoDoctrineODMCommand.php
+++ b/Command/InfoDoctrineODMCommand.php
@@ -75,5 +75,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
                 $output->write('', true);
             }
         }
+
+        return 0;
     }
 }
diff --git a/Command/LoadDataFixturesDoctrineODMCommand.php b/Command/LoadDataFixturesDoctrineODMCommand.php
index 26566e01..ead652d0 100644
--- a/Command/LoadDataFixturesDoctrineODMCommand.php
+++ b/Command/LoadDataFixturesDoctrineODMCommand.php
@@ -90,7 +90,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
             $question = new ConfirmationQuestion('Careful, database will be purged. Do you want to continue (y/N) ?', false);
 
             if (! $helper->ask($input, $output, $question)) {
-                return;
+                return 0;
             }
         }
 
@@ -118,5 +118,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
             $output->writeln(sprintf('  <comment>></comment> <info>%s</info>', $message));
         });
         $executor->execute($fixtures, $input->getOption('append'));
+
+        return 0;
     }
 }
diff --git a/Command/TailCursorDoctrineODMCommand.php b/Command/TailCursorDoctrineODMCommand.php
index eaaebb09..65cca98c 100644
--- a/Command/TailCursorDoctrineODMCommand.php
+++ b/Command/TailCursorDoctrineODMCommand.php
@@ -89,6 +89,8 @@ protected function execute(InputInterface $input, OutputInterface $output)
 
             $dm->clear();
         }
+
+        return 0;
     }
 
     /**
diff --git a/DependencyInjection/DoctrineMongoDBExtension.php b/DependencyInjection/DoctrineMongoDBExtension.php
index 92f44433..d6bd65b7 100644
--- a/DependencyInjection/DoctrineMongoDBExtension.php
+++ b/DependencyInjection/DoctrineMongoDBExtension.php
@@ -420,6 +420,11 @@ protected function getMappingResourceExtension()
         return 'mongodb';
     }
 
+    protected function getMetadataDriverClass(string $driverType) : string
+    {
+        return '%' . $this->getObjectManagerElementName('metadata.' . $driverType . '.class') . '%';
+    }
+
     public function getAlias()
     {
         return 'doctrine_mongodb';
diff --git a/Tests/Form/Type/DocumentTypeTest.php b/Tests/Form/Type/DocumentTypeTest.php
index d92ec87b..8af133d7 100644
--- a/Tests/Form/Type/DocumentTypeTest.php
+++ b/Tests/Form/Type/DocumentTypeTest.php
@@ -30,7 +30,7 @@ class DocumentTypeTest extends TypeTestCase
 
     private $typeFQCN;
 
-    public function setUp()
+    public function setUp() : void
     {
         $this->typeFQCN = method_exists(AbstractType::class, 'getBlockPrefix');
 
@@ -42,7 +42,7 @@ public function setUp()
         parent::setUp();
     }
 
-    protected function tearDown()
+    protected function tearDown() : void
     {
         $documentClasses = [
             Document::class,
diff --git a/Tests/Form/Type/TypeGuesserTest.php b/Tests/Form/Type/TypeGuesserTest.php
index e887f38b..f656b56b 100644
--- a/Tests/Form/Type/TypeGuesserTest.php
+++ b/Tests/Form/Type/TypeGuesserTest.php
@@ -27,7 +27,7 @@ class TypeGuesserTest extends TypeTestCase
 
     private $typeFQCN;
 
-    public function setUp()
+    public function setUp() : void
     {
         $this->typeFQCN = method_exists(AbstractType::class, 'getBlockPrefix');
 
@@ -39,7 +39,7 @@ public function setUp()
         parent::setUp();
     }
 
-    protected function tearDown()
+    protected function tearDown() : void
     {
         $documentClasses = [
             Document::class,
diff --git a/composer.json b/composer.json
index 5a572560..a8d0b0d3 100644
--- a/composer.json
+++ b/composer.json
@@ -5,6 +5,7 @@
     "keywords": ["persistence", "mongodb", "symfony"],
     "homepage": "http://www.doctrine-project.org",
     "license": "MIT",
+    "minimum-stability": "dev",
     "authors": [
         {"name": "Bulat Shakirzyanov", "email": "mallluhuct@gmail.com"},
         {"name": "Kris Wallsmith", "email": "kris@symfony.com"},
@@ -15,21 +16,21 @@
         "doctrine/annotations": "^1.2",
         "doctrine/mongodb-odm": "^2.0.0",
         "psr/log": "^1.0",
-        "symfony/console": "^3.4 || ^4.0",
-        "symfony/dependency-injection": "^3.4 || ^4.0",
-        "symfony/doctrine-bridge": "^3.4 || ^4.0",
-        "symfony/config": "^3.4 || ^4.0",
-        "symfony/framework-bundle": "^3.4 || ^4.0",
-        "symfony/options-resolver": "^3.4 || ^4.0"
+        "symfony/console": "^3.4 || ^4.0 || ^5.0",
+        "symfony/dependency-injection": "^3.4 || ^4.0 || ^5.0",
+        "symfony/doctrine-bridge": "^3.4 || ^4.0 || ^5.0",
+        "symfony/config": "^3.4 || ^4.0 || ^5.0",
+        "symfony/framework-bundle": "^3.4 || ^4.0 || ^5.0",
+        "symfony/options-resolver": "^3.4 || ^4.0 || ^5.0"
     },
     "require-dev": {
         "doctrine/coding-standard": "^6.0",
         "doctrine/data-fixtures": "^1.2.2",
         "phpunit/phpunit": "^7.3",
         "squizlabs/php_codesniffer": "^3.5",
-        "symfony/form": "^3.4 || ^4.0",
-        "symfony/phpunit-bridge": "^3.4 || ^4.0",
-        "symfony/yaml": "^3.4 || ^4.0"
+        "symfony/form": "^3.4 || ^4.0 || ^5.0",
+        "symfony/phpunit-bridge": "^3.4 || ^4.0 || ^5.0",
+        "symfony/yaml": "^3.4 || ^4.0 || ^5.0"
     },
     "suggest": {
         "doctrine/data-fixtures": "Load data fixtures"