diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 161f12ea..c38fcedc 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -30,7 +30,7 @@ jobs:
             fail-fast: false
             matrix:
                 php: [ '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3' ]
-                monolog: [ '1.*', '2.*' ]
+                monolog: [ '2.*' ]
                 include:
                     -   php: '7.4'
                         deps: lowest
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 71857560..717f752c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 ## Unreleased
 
+* Drop support for Monolog 1
+
 ## 3.10.0 (2023-11-06)
 
 * Add configuration support for SamplingHandler
diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 255eba47..3db7cf6c 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -223,17 +223,15 @@
  *   - [timeout]: float
  *   - [connection_timeout]: float
  *
- * - raven / sentry:
+ * - sentry:
  *   - dsn: connection string
  *   - client_id: Raven client custom service id (optional)
+ *   - hub_id: Sentry hub custom service id (optional)
  *   - [release]: release number of the application that will be attached to logs, defaults to null
  *   - [level]: level name or int value, defaults to DEBUG
  *   - [bubble]: bool, defaults to true
  *   - [auto_log_stacks]: bool, defaults to false
  *   - [environment]: string, default to null (no env specified)
- *
- * - sentry:
- *   - hub_id: Sentry hub custom service id (optional)
  *   - [fill_extra_context]: bool, defaults to false
  *
  * - newrelic:
@@ -241,20 +239,6 @@
  *   - [bubble]: bool, defaults to true
  *   - [app_name]: new relic app name, default null
  *
- * - hipchat:
- *   - token: hipchat api token
- *   - room: room id or name
- *   - [notify]: defaults to false
- *   - [nickname]: defaults to Monolog
- *   - [level]: level name or int value, defaults to DEBUG
- *   - [bubble]: bool, defaults to true
- *   - [use_ssl]: bool, defaults to true
- *   - [message_format]: text or html, defaults to text
- *   - [host]: defaults to "api.hipchat.com"
- *   - [api_version]: defaults to "v1"
- *   - [timeout]: float
- *   - [connection_timeout]: float
- *
  * - slack:
  *   - token: slack api token
  *   - channel: channel name (with starting #)
@@ -279,13 +263,6 @@
  *   - [level]: level name or int value, defaults to DEBUG
  *   - [bubble]: bool, defaults to true
  *
- * - slackbot:
- *   - team: slack team slug
- *   - token: slackbot token
- *   - channel: channel name (with starting #)
- *   - [level]: level name or int value, defaults to DEBUG
- *   - [bubble]: bool, defaults to true
- *
  * - cube:
  *   - url: http/udp url to the cube server
  *   - [level]: level name or int value, defaults to DEBUG
@@ -538,23 +515,17 @@ public function getConfigTreeBuilder(): TreeBuilder
                 ->scalarNode('url')->end() // cube
                 ->scalarNode('exchange')->end() // amqp
                 ->scalarNode('exchange_name')->defaultValue('log')->end() // amqp
-                ->scalarNode('room')->end() // hipchat
-                ->scalarNode('message_format')->defaultValue('text')->end() // hipchat
-                ->scalarNode('api_version')->defaultNull()->end() // hipchat
-                ->scalarNode('channel')->defaultNull()->end() // slack & slackwebhook & slackbot & telegram
+                ->scalarNode('channel')->defaultNull()->end() // slack & slackwebhook & telegram
                 ->scalarNode('bot_name')->defaultValue('Monolog')->end() // slack & slackwebhook
                 ->scalarNode('use_attachment')->defaultTrue()->end() // slack & slackwebhook
                 ->scalarNode('use_short_attachment')->defaultFalse()->end() // slack & slackwebhook
                 ->scalarNode('include_extra')->defaultFalse()->end() // slack & slackwebhook
                 ->scalarNode('icon_emoji')->defaultNull()->end() // slack & slackwebhook
                 ->scalarNode('webhook_url')->end() // slackwebhook
-                ->scalarNode('team')->end() // slackbot
-                ->scalarNode('notify')->defaultFalse()->end() // hipchat
-                ->scalarNode('nickname')->defaultValue('Monolog')->end() // hipchat
-                ->scalarNode('token')->end() // pushover & hipchat & loggly & logentries & flowdock & rollbar & slack & slackbot & insightops & telegram
+                ->scalarNode('token')->end() // pushover & loggly & logentries & flowdock & rollbar & slack & insightops & telegram
                 ->scalarNode('region')->end() // insightops
                 ->scalarNode('source')->end() // flowdock
-                ->booleanNode('use_ssl')->defaultTrue()->end() // logentries & hipchat & insightops
+                ->booleanNode('use_ssl')->defaultTrue()->end() // logentries & insightops
                 ->variableNode('user') // pushover
                     ->validate()
                         ->ifTrue(function ($v) {
@@ -564,7 +535,7 @@ public function getConfigTreeBuilder(): TreeBuilder
                     ->end()
                 ->end()
                 ->scalarNode('title')->defaultNull()->end() // pushover
-                ->scalarNode('host')->defaultNull()->end() // syslogudp & hipchat
+                ->scalarNode('host')->defaultNull()->end() // syslogudp
                 ->scalarNode('port')->defaultValue(514)->end() // syslogudp
                 ->arrayNode('config')
                     ->canBeUnset()
@@ -576,18 +547,17 @@ public function getConfigTreeBuilder(): TreeBuilder
                     ->prototype('scalar')->end()
                 ->end()
                 ->scalarNode('connection_string')->end() // socket_handler
-                ->scalarNode('timeout')->end() // socket_handler, logentries, pushover, hipchat & slack
+                ->scalarNode('timeout')->end() // socket_handler, logentries, pushover & slack
                 ->scalarNode('time')->defaultValue(60)->end() // deduplication
                 ->scalarNode('deduplication_level')->defaultValue(Logger::ERROR)->end() // deduplication
                 ->scalarNode('store')->defaultNull()->end() // deduplication
-                ->scalarNode('connection_timeout')->end() // socket_handler, logentries, pushover, hipchat & slack
+                ->scalarNode('connection_timeout')->end() // socket_handler, logentries, pushover & slack
                 ->booleanNode('persistent')->end() // socket_handler
-                ->scalarNode('dsn')->end() // raven_handler, sentry_handler
+                ->scalarNode('dsn')->end() // sentry_handler
                 ->scalarNode('hub_id')->defaultNull()->end() // sentry_handler
-                ->scalarNode('client_id')->defaultNull()->end() // raven_handler, sentry_handler
-                ->scalarNode('auto_log_stacks')->defaultFalse()->end() // raven_handler
-                ->scalarNode('release')->defaultNull()->end() // raven_handler, sentry_handler
-                ->scalarNode('environment')->defaultNull()->end() // raven_handler, sentry_handler
+                ->scalarNode('client_id')->defaultNull()->end() // sentry_handler
+                ->scalarNode('release')->defaultNull()->end() // sentry_handler
+                ->scalarNode('environment')->defaultNull()->end() // sentry_handler
                 ->scalarNode('message_type')->defaultValue(0)->end() // error_log
                 ->scalarNode('parse_mode')->defaultNull()->end() // telegram
                 ->booleanNode('disable_webpage_preview')->defaultNull()->end() // telegram
@@ -713,10 +683,6 @@ public function getConfigTreeBuilder(): TreeBuilder
                 ->ifTrue(function ($v) { return 'pushover' === $v['type'] && (empty($v['token']) || empty($v['user'])); })
                 ->thenInvalid('The token and user have to be specified to use a PushoverHandler')
             ->end()
-            ->validate()
-                ->ifTrue(function ($v) { return 'raven' === $v['type'] && !\array_key_exists('dsn', $v) && null === $v['client_id']; })
-                ->thenInvalid('The DSN has to be specified to use a RavenHandler')
-            ->end()
             ->validate()
                 ->ifTrue(function ($v) { return 'sentry' === $v['type'] && !\array_key_exists('dsn', $v) && null === $v['hub_id'] && null === $v['client_id']; })
                 ->thenInvalid('The DSN has to be specified to use Sentry\'s handler')
@@ -725,18 +691,6 @@ public function getConfigTreeBuilder(): TreeBuilder
                 ->ifTrue(function ($v) { return 'sentry' === $v['type'] && null !== $v['hub_id'] && null !== $v['client_id']; })
                 ->thenInvalid('You can not use both a hub_id and a client_id in a Sentry handler')
             ->end()
-            ->validate()
-                ->ifTrue(function ($v) { return 'hipchat' === $v['type'] && (empty($v['token']) || empty($v['room'])); })
-                ->thenInvalid('The token and room have to be specified to use a HipChatHandler')
-            ->end()
-            ->validate()
-                ->ifTrue(function ($v) { return 'hipchat' === $v['type'] && !\in_array($v['message_format'], ['text', 'html']); })
-                ->thenInvalid('The message_format has to be "text" or "html" in a HipChatHandler')
-            ->end()
-            ->validate()
-                ->ifTrue(function ($v) { return 'hipchat' === $v['type'] && null !== $v['api_version'] && !\in_array($v['api_version'], ['v1', 'v2'], true); })
-                ->thenInvalid('The api_version has to be "v1" or "v2" in a HipChatHandler')
-            ->end()
             ->validate()
                 ->ifTrue(function ($v) { return 'slack' === $v['type'] && (empty($v['token']) || empty($v['channel'])); })
                 ->thenInvalid('The token and channel have to be specified to use a SlackHandler')
@@ -745,10 +699,6 @@ public function getConfigTreeBuilder(): TreeBuilder
                 ->ifTrue(function ($v) { return 'slackwebhook' === $v['type'] && (empty($v['webhook_url'])); })
                 ->thenInvalid('The webhook_url have to be specified to use a SlackWebhookHandler')
             ->end()
-            ->validate()
-                ->ifTrue(function ($v) { return 'slackbot' === $v['type'] && (empty($v['team']) || empty($v['token']) || empty($v['channel'])); })
-                ->thenInvalid('The team, token and channel have to be specified to use a SlackbotHandler')
-            ->end()
             ->validate()
                 ->ifTrue(function ($v) { return 'cube' === $v['type'] && empty($v['url']); })
                 ->thenInvalid('The url has to be specified to use a CubeHandler')
diff --git a/DependencyInjection/MonologExtension.php b/DependencyInjection/MonologExtension.php
index 1d47a984..a30bdf91 100644
--- a/DependencyInjection/MonologExtension.php
+++ b/DependencyInjection/MonologExtension.php
@@ -229,14 +229,6 @@ private function buildHandler(ContainerBuilder $container, $name, array $handler
 
                     $publisher = new Definition('Gelf\Publisher', []);
                     $publisher->addMethodCall('addTransport', [$transport]);
-                    $publisher->setPublic(false);
-                } elseif (class_exists('Gelf\MessagePublisher')) {
-                    $publisher = new Definition('Gelf\MessagePublisher', [
-                        $handler['publisher']['hostname'],
-                        $handler['publisher']['port'],
-                        $handler['publisher']['chunk_size'],
-                    ]);
-
                     $publisher->setPublic(false);
                 } else {
                     throw new \RuntimeException('The gelf handler requires the graylog2/gelf-php package to be installed');
@@ -632,27 +624,6 @@ private function buildHandler(ContainerBuilder $container, $name, array $handler
                 }
                 break;
 
-            case 'hipchat':
-                $definition->setArguments([
-                    $handler['token'],
-                    $handler['room'],
-                    $handler['nickname'],
-                    $handler['notify'],
-                    $handler['level'],
-                    $handler['bubble'],
-                    $handler['use_ssl'],
-                    $handler['message_format'],
-                    !empty($handler['host']) ? $handler['host'] : 'api.hipchat.com',
-                    !empty($handler['api_version']) ? $handler['api_version'] : 'v1',
-                ]);
-                if (isset($handler['timeout'])) {
-                    $definition->addMethodCall('setTimeout', [$handler['timeout']]);
-                }
-                if (isset($handler['connection_timeout'])) {
-                    $definition->addMethodCall('setConnectionTimeout', [$handler['connection_timeout']]);
-                }
-                break;
-
             case 'slack':
                 $definition->setArguments([
                     $handler['token'],
@@ -687,16 +658,6 @@ private function buildHandler(ContainerBuilder $container, $name, array $handler
                 ]);
                 break;
 
-            case 'slackbot':
-                $definition->setArguments([
-                    $handler['team'],
-                    $handler['token'],
-                    urlencode($handler['channel']),
-                    $handler['level'],
-                    $handler['bubble'],
-                ]);
-                break;
-
             case 'cube':
                 $definition->setArguments([
                     $handler['url'],
@@ -773,31 +734,6 @@ private function buildHandler(ContainerBuilder $container, $name, array $handler
                 ]);
                 break;
 
-            case 'raven':
-                if (null !== $handler['client_id']) {
-                    $clientId = $handler['client_id'];
-                } else {
-                    $client = new Definition('Raven_Client', [
-                        $handler['dsn'],
-                        [
-                            'auto_log_stacks' => $handler['auto_log_stacks'],
-                            'environment' => $handler['environment'],
-                        ],
-                    ]);
-                    $client->setPublic(false);
-                    $clientId = 'monolog.raven.client.'.sha1($handler['dsn']);
-                    $container->setDefinition($clientId, $client);
-                }
-                $definition->setArguments([
-                    new Reference($clientId),
-                    $handler['level'],
-                    $handler['bubble'],
-                ]);
-                if (!empty($handler['release'])) {
-                    $definition->addMethodCall('setRelease', [$handler['release']]);
-                }
-                break;
-
             case 'loggly':
                 $definition->setArguments([
                     $handler['token'],
@@ -975,13 +911,10 @@ private function getHandlerClassByType($handlerType)
             'symfony_mailer' => 'Symfony\Bridge\Monolog\Handler\MailerHandler',
             'socket' => 'Monolog\Handler\SocketHandler',
             'pushover' => 'Monolog\Handler\PushoverHandler',
-            'raven' => 'Monolog\Handler\RavenHandler',
             'sentry' => 'Sentry\Monolog\Handler',
             'newrelic' => 'Monolog\Handler\NewRelicHandler',
-            'hipchat' => 'Monolog\Handler\HipChatHandler',
             'slack' => 'Monolog\Handler\SlackHandler',
             'slackwebhook' => 'Monolog\Handler\SlackWebhookHandler',
-            'slackbot' => 'Monolog\Handler\SlackbotHandler',
             'cube' => 'Monolog\Handler\CubeHandler',
             'amqp' => 'Monolog\Handler\AmqpHandler',
             'error_log' => 'Monolog\Handler\ErrorLogHandler',
@@ -991,16 +924,12 @@ private function getHandlerClassByType($handlerType)
             'fingers_crossed' => 'Monolog\Handler\FingersCrossedHandler',
             'filter' => 'Monolog\Handler\FilterHandler',
             'mongo' => 'Monolog\Handler\MongoDBHandler',
-            'elasticsearch' => 'Monolog\Handler\ElasticSearchHandler',
             'telegram' => 'Monolog\Handler\TelegramBotHandler',
             'server_log' => 'Symfony\Bridge\Monolog\Handler\ServerLogHandler',
             'redis' => 'Monolog\Handler\RedisHandler',
             'predis' => 'Monolog\Handler\RedisHandler',
             'insightops' => 'Monolog\Handler\InsightOpsHandler',
             'sampling' => 'Monolog\Handler\SamplingHandler',
-        ];
-
-        $v2HandlerTypesAdded = [
             'elastica' => 'Monolog\Handler\ElasticaHandler',
             'elasticsearch' => 'Monolog\Handler\ElasticaHandler',
             'elastic_search' => 'Monolog\Handler\ElasticsearchHandler',
@@ -1008,23 +937,10 @@ private function getHandlerClassByType($handlerType)
             'noop' => 'Monolog\Handler\NoopHandler',
         ];
 
-        $v2HandlerTypesRemoved = [
-            'hipchat',
-            'raven',
-            'slackbot',
-        ];
-
         $v3HandlerTypesRemoved = [
             'swift_mailer',
         ];
 
-        if (Logger::API >= 2) {
-            $typeToClassMapping = array_merge($typeToClassMapping, $v2HandlerTypesAdded);
-            foreach ($v2HandlerTypesRemoved as $v2HandlerTypeRemoved) {
-                unset($typeToClassMapping[$v2HandlerTypeRemoved]);
-            }
-        }
-
         if (Logger::API >= 3) {
             foreach ($v3HandlerTypesRemoved as $v3HandlerTypeRemoved) {
                 unset($typeToClassMapping[$v3HandlerTypeRemoved]);
@@ -1032,14 +948,6 @@ private function getHandlerClassByType($handlerType)
         }
 
         if (!isset($typeToClassMapping[$handlerType])) {
-            if (Logger::API === 1 && \array_key_exists($handlerType, $v2HandlerTypesAdded)) {
-                throw new \InvalidArgumentException(\sprintf('"%s" was added in Monolog v2, please upgrade if you wish to use it.', $handlerType));
-            }
-
-            if (Logger::API >= 2 && \array_key_exists($handlerType, $v2HandlerTypesRemoved)) {
-                throw new \InvalidArgumentException(\sprintf('"%s" was removed in Monolog v2.', $handlerType));
-            }
-
             if (Logger::API >= 3 && \array_key_exists($handlerType, $v3HandlerTypesRemoved)) {
                 throw new \InvalidArgumentException(\sprintf('"%s" was removed in Monolog v3.', $handlerType));
             }
diff --git a/Resources/config/schema/monolog-1.0.xsd b/Resources/config/schema/monolog-1.0.xsd
index b00e969e..37683915 100644
--- a/Resources/config/schema/monolog-1.0.xsd
+++ b/Resources/config/schema/monolog-1.0.xsd
@@ -57,9 +57,6 @@
         <xsd:attribute name="from-email" type="xsd:string" />
         <xsd:attribute name="to-email" type="xsd:string" />
         <xsd:attribute name="subject" type="xsd:string" />
-        <xsd:attribute name="notify" type="xsd:boolean" />
-        <xsd:attribute name="room" type="xsd:string" />
-        <xsd:attribute name="nickname" type="xsd:string" />
         <xsd:attribute name="release" type="xsd:string" />
         <xsd:attribute name="timeout" type="xsd:string" />
         <xsd:attribute name="time" type="xsd:integer" />
@@ -86,11 +83,9 @@
         <xsd:attribute name="document_type" type="xsd:string" />
         <xsd:attribute name="document-type" type="xsd:string" />
         <xsd:attribute name="ignore-error" type="xsd:string" />
-        <xsd:attribute name="api_version" type="xsd:string" />
         <xsd:attribute name="include-stacktraces" type="xsd:string" />
         <xsd:attribute name="content-type" type="xsd:string" />
         <xsd:attribute name="webhook-url" type="xsd:string" />
-        <xsd:attribute name="slack-team" type="xsd:string" />
         <xsd:attribute name="region" type="xsd:string" />
     </xsd:complexType>
 
diff --git a/Tests/DependencyInjection/Compiler/AddProcessorsPassTest.php b/Tests/DependencyInjection/Compiler/AddProcessorsPassTest.php
index c11c2a33..0ac5d775 100644
--- a/Tests/DependencyInjection/Compiler/AddProcessorsPassTest.php
+++ b/Tests/DependencyInjection/Compiler/AddProcessorsPassTest.php
@@ -12,7 +12,6 @@
 namespace Symfony\Bundle\MonologBundle\Tests\DependencyInjection\Compiler;
 
 use Monolog\Handler\NullHandler;
-use Monolog\Logger;
 use PHPUnit\Framework\TestCase;
 use Symfony\Bridge\Monolog\Handler\ConsoleHandler;
 use Symfony\Bundle\MonologBundle\DependencyInjection\Compiler\AddProcessorsPass;
@@ -53,16 +52,9 @@ public function testFailureOnHandlerWithoutPushProcessor()
         $container->getCompilerPassConfig()->setRemovingPasses([]);
         $container->addCompilerPass(new AddProcessorsPass());
 
-        if (Logger::API < 2) {
-            $container->compile();
-            $service = $container->getDefinition('monolog.handler.test3');
-            $calls = $service->getMethodCalls();
-            $this->assertCount(1, $calls);
-        } else {
-            $this->expectException(\InvalidArgumentException::class);
-            $this->expectExceptionMessage('The "test3" handler does not accept processors');
-            $container->compile();
-        }
+        $this->expectException(\InvalidArgumentException::class);
+        $this->expectExceptionMessage('The "test3" handler does not accept processors');
+        $container->compile();
     }
 
     protected function getContainer()
diff --git a/Tests/DependencyInjection/ConfigurationTest.php b/Tests/DependencyInjection/ConfigurationTest.php
index d581a049..98f1cc71 100644
--- a/Tests/DependencyInjection/ConfigurationTest.php
+++ b/Tests/DependencyInjection/ConfigurationTest.php
@@ -194,7 +194,7 @@ public function testMergingInvalidChannels()
     public function testWithSwiftMailerHandler()
     {
         if (Logger::API >= 3) {
-            $this->markTestSkipped('This test requires Monolog v1 or v2');
+            $this->markTestSkipped('This test requires Monolog v2');
         }
 
         $configs = [
diff --git a/Tests/DependencyInjection/FixtureMonologExtensionTestCase.php b/Tests/DependencyInjection/FixtureMonologExtensionTestCase.php
index fb6dbf96..c47b3d09 100644
--- a/Tests/DependencyInjection/FixtureMonologExtensionTestCase.php
+++ b/Tests/DependencyInjection/FixtureMonologExtensionTestCase.php
@@ -12,7 +12,6 @@
 namespace Symfony\Bundle\MonologBundle\Tests\DependencyInjection;
 
 use Monolog\Handler\FingersCrossed\ErrorLevelActivationStrategy;
-use Monolog\Processor\PsrLogMessageProcessor;
 use Symfony\Bundle\MonologBundle\DependencyInjection\Compiler\LoggerChannelPass;
 use Symfony\Bundle\MonologBundle\DependencyInjection\MonologExtension;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
@@ -149,7 +148,7 @@ public function testHandlersWithChannels()
     public function testSingleEmailRecipient()
     {
         if (\Monolog\Logger::API >= 3) {
-            $this->markTestSkipped('This test requires Monolog v1 or v2');
+            $this->markTestSkipped('This test requires Monolog v2');
         }
 
         $container = $this->getContainer('single_email_recipient');
@@ -177,7 +176,7 @@ public function testServerLog()
     public function testMultipleEmailRecipients()
     {
         if (\Monolog\Logger::API >= 3) {
-            $this->markTestSkipped('This test requires Monolog v1 or v2');
+            $this->markTestSkipped('This test requires Monolog v2');
         }
 
         $container = $this->getContainer('multiple_email_recipients');
@@ -216,9 +215,6 @@ public function testPsr3MessageProcessingEnabled()
 
     public function testPsr3MessageProcessingDisabledOnNullHandler()
     {
-        if (\Monolog\Logger::API < 2) {
-            $this->markTestSkipped('This test requires Monolog v2 or above');
-        }
         $container = $this->getContainer('process_psr_3_messages_null');
 
         $logger = $container->getDefinition('monolog.handler.custom');
@@ -230,9 +226,6 @@ public function testPsr3MessageProcessingDisabledOnNullHandler()
 
     public function testHandlersV2()
     {
-        if (\Monolog\Logger::API < 2) {
-            $this->markTestSkipped('This test requires Monolog v2 or above');
-        }
         $this->getContainer('handlers');
 
         $this->expectNotToPerformAssertions();
@@ -251,11 +244,6 @@ public function testPsr3MessageProcessingDisabled()
 
     public function testPsrLogMessageProcessorHasConstructorArguments(): void
     {
-        $reflectionConstructor = (new \ReflectionClass(PsrLogMessageProcessor::class))->getConstructor();
-        if (null === $reflectionConstructor || $reflectionConstructor->getNumberOfParameters() <= 0) {
-            $this->markTestSkipped('Monolog >= 1.26 is needed.');
-        }
-
         $container = $this->getContainer('process_psr_3_messages_with_arguments');
 
         $processors = [
@@ -276,28 +264,6 @@ public function testPsrLogMessageProcessorHasConstructorArguments(): void
         }
     }
 
-    public function testPsrLogMessageProcessorDoesNotHaveConstructorArguments(): void
-    {
-        $reflectionConstructor = (new \ReflectionClass(PsrLogMessageProcessor::class))->getConstructor();
-        if (null !== $reflectionConstructor && $reflectionConstructor->getNumberOfParameters() > 0) {
-            $this->markTestSkipped('Monolog < 1.26 is needed.');
-        }
-
-        $container = $this->getContainer('process_psr_3_messages_without_arguments');
-
-        $this->assertTrue($container->hasDefinition($processorId = 'monolog.processor.psr_log_message'));
-        $processor = $container->getDefinition($processorId);
-        $this->assertDICConstructorArguments($processor, []);
-
-        $this->assertTrue($container->hasDefinition($handlerId = 'monolog.handler.without_arguments'));
-        $handler = $container->getDefinition($handlerId);
-        $this->assertDICDefinitionMethodCallAt(0, $handler, 'pushProcessor', [new Reference($processorId)]);
-
-        $this->expectException(\RuntimeException::class);
-        $this->expectExceptionMessage('Monolog 1.26 or higher is required for the "date_format" and "remove_used_context_fields" options to be used.');
-        $this->getContainer('process_psr_3_messages_with_arguments');
-    }
-
     public function testNativeMailer()
     {
         $container = $this->getContainer('native_mailer');
diff --git a/Tests/DependencyInjection/Fixtures/xml/process_psr_3_messages_without_arguments.xml b/Tests/DependencyInjection/Fixtures/xml/process_psr_3_messages_without_arguments.xml
deleted file mode 100644
index 288eb750..00000000
--- a/Tests/DependencyInjection/Fixtures/xml/process_psr_3_messages_without_arguments.xml
+++ /dev/null
@@ -1,13 +0,0 @@
-<?xml version="1.0" ?>
-
-<container xmlns="http://symfony.com/schema/dic/services"
-           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-           xmlns:monolog="http://symfony.com/schema/dic/monolog"
-           xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd
-                        http://symfony.com/schema/dic/monolog http://symfony.com/schema/dic/monolog/monolog-1.0.xsd">
-    <monolog:config>
-        <monolog:handler name="without_arguments" type="stream">
-            <monolog:process-psr-3-messages enabled="true" />
-        </monolog:handler>
-    </monolog:config>
-</container>
diff --git a/Tests/DependencyInjection/Fixtures/yml/process_psr_3_messages_without_arguments.yml b/Tests/DependencyInjection/Fixtures/yml/process_psr_3_messages_without_arguments.yml
deleted file mode 100644
index b04e190c..00000000
--- a/Tests/DependencyInjection/Fixtures/yml/process_psr_3_messages_without_arguments.yml
+++ /dev/null
@@ -1,6 +0,0 @@
-monolog:
-    handlers:
-        without_arguments:
-            type: stream
-            process_psr_3_messages:
-                enabled: true
diff --git a/Tests/DependencyInjection/MonologExtensionTest.php b/Tests/DependencyInjection/MonologExtensionTest.php
index eb02825f..0dee0ccc 100644
--- a/Tests/DependencyInjection/MonologExtensionTest.php
+++ b/Tests/DependencyInjection/MonologExtensionTest.php
@@ -15,7 +15,6 @@
 use Monolog\Attribute\WithMonologChannel;
 use Monolog\Handler\FingersCrossed\ErrorLevelActivationStrategy;
 use Monolog\Handler\RollbarHandler;
-use Monolog\Logger;
 use Monolog\Processor\UidProcessor;
 use Symfony\Bundle\MonologBundle\DependencyInjection\Compiler\LoggerChannelPass;
 use Symfony\Bundle\MonologBundle\DependencyInjection\MonologExtension;
@@ -287,88 +286,6 @@ public function testSocketHandler()
         $this->assertDICDefinitionMethodCallAt(3, $handler, 'setPersistent', [true]);
     }
 
-    public function testRavenHandlerWhenConfigurationIsWrong()
-    {
-        if (Logger::API !== 1) {
-            $this->markTestSkipped('Only valid on Monolog V1');
-
-            return;
-        }
-
-        try {
-            $this->getContainer([['handlers' => ['raven' => ['type' => 'raven']]]]);
-            $this->fail();
-        } catch (InvalidConfigurationException $e) {
-            $this->assertStringContainsString('DSN', $e->getMessage());
-        }
-    }
-
-    public function testRavenHandlerWhenADSNIsSpecified()
-    {
-        if (Logger::API !== 1) {
-            $this->markTestSkipped('Only valid on Monolog V1');
-
-            return;
-        }
-
-        $dsn = 'http://43f6017361224d098402974103bfc53d:a6a0538fc2934ba2bed32e08741b2cd3@marca.python.live.cheggnet.com:9000/1';
-
-        $container = $this->getContainer([['handlers' => ['raven' => [
-            'type' => 'raven', 'dsn' => $dsn,
-        ]]]]);
-        $this->assertTrue($container->hasDefinition('monolog.logger'));
-        $this->assertTrue($container->hasDefinition('monolog.handler.raven'));
-
-        $logger = $container->getDefinition('monolog.logger');
-        $this->assertDICDefinitionMethodCallAt(0, $logger, 'useMicrosecondTimestamps', ['%monolog.use_microseconds%']);
-        $this->assertDICDefinitionMethodCallAt(1, $logger, 'pushHandler', [new Reference('monolog.handler.raven')]);
-
-        $this->assertTrue($container->hasDefinition('monolog.raven.client.'.sha1($dsn)));
-
-        $handler = $container->getDefinition('monolog.handler.raven');
-        $this->assertDICDefinitionClass($handler, 'Monolog\Handler\RavenHandler');
-    }
-
-    public function testRavenHandlerWhenADSNAndAClientAreSpecified()
-    {
-        if (Logger::API !== 1) {
-            $this->markTestSkipped('Only valid on Monolog V1');
-
-            return;
-        }
-
-        $container = $this->getContainer([['handlers' => ['raven' => [
-            'type' => 'raven', 'dsn' => 'foobar', 'client_id' => 'raven.client',
-        ]]]], ['raven.client' => new Definition('Raven_Client')]);
-
-        $logger = $container->getDefinition('monolog.logger');
-        $this->assertDICDefinitionMethodCallAt(0, $logger, 'useMicrosecondTimestamps', ['%monolog.use_microseconds%']);
-        $this->assertDICDefinitionMethodCallAt(1, $logger, 'pushHandler', [new Reference('monolog.handler.raven')]);
-
-        $handler = $container->getDefinition('monolog.handler.raven');
-        $this->assertDICConstructorArguments($handler, [new Reference('raven.client'), 'DEBUG', true]);
-    }
-
-    public function testRavenHandlerWhenAClientIsSpecified()
-    {
-        if (Logger::API !== 1) {
-            $this->markTestSkipped('Only valid on Monolog V1');
-
-            return;
-        }
-
-        $container = $this->getContainer([['handlers' => ['raven' => [
-            'type' => 'raven', 'client_id' => 'raven.client',
-        ]]]], ['raven.client' => new Definition('Raven_Client')]);
-
-        $logger = $container->getDefinition('monolog.logger');
-        $this->assertDICDefinitionMethodCallAt(0, $logger, 'useMicrosecondTimestamps', ['%monolog.use_microseconds%']);
-        $this->assertDICDefinitionMethodCallAt(1, $logger, 'pushHandler', [new Reference('monolog.handler.raven')]);
-
-        $handler = $container->getDefinition('monolog.handler.raven');
-        $this->assertDICConstructorArguments($handler, [new Reference('raven.client'), 'DEBUG', true]);
-    }
-
     public function testSentryHandlerWhenConfigurationIsWrong()
     {
         try {
@@ -611,47 +528,26 @@ public function testFingersCrossedHandlerWhenExcludedHttpCodesAreSpecified()
     /**
      * @dataProvider v2RemovedDataProvider
      */
-    public function testV2Removed(array $handlerOptions)
+    public function testV2Removed(string $type)
     {
-        if (Logger::API === 1) {
-            $this->markTestSkipped('Not valid for V1');
-
-            return;
-        }
-
         $this->expectException(\InvalidArgumentException::class);
-        $this->expectExceptionMessage(\sprintf('There is no handler class defined for handler "%s".', $handlerOptions['type']));
+        $this->expectExceptionMessage(\sprintf('There is no handler class defined for handler "%s".', $type));
 
         $container = new ContainerBuilder();
         $loader = new MonologExtension();
 
-        $loader->load([['handlers' => ['main' => $handlerOptions]]], $container);
+        $loader->load([['handlers' => ['main' => ['type' => $type]]]], $container);
     }
 
     public static function v2RemovedDataProvider(): array
     {
         return [
-            [['type' => 'hipchat', 'token' => 'abc123', 'room' => 'foo']],
-            [['type' => 'raven', 'dsn' => 'foo']],
-            [['type' => 'slackbot', 'team' => 'foo', 'token' => 'test1234', 'channel' => 'bar']],
+            ['hipchat'],
+            ['raven'],
+            ['slackbot'],
         ];
     }
 
-    public function testV2AddedOnV1()
-    {
-        if (Logger::API !== 1) {
-            $this->markTestSkipped('Only valid on Monolog V1');
-        }
-
-        $this->expectException(\InvalidArgumentException::class);
-        $this->expectExceptionMessage('"fallbackgroup" was added in Monolog v2, please upgrade if you wish to use it.');
-
-        $container = new ContainerBuilder();
-        $loader = new MonologExtension();
-
-        $loader->load([['handlers' => ['main' => ['type' => 'fallbackgroup']]]], $container);
-    }
-
     /**
      * @dataProvider provideLoglevelParameterConfig
      */
@@ -754,10 +650,6 @@ public function testProcessorAutoConfiguration()
      */
     public function testAsMonologProcessorAutoconfigurationRedeclareMethod(): void
     {
-        if (!class_exists(AsMonologProcessor::class, true)) {
-            $this->markTestSkipped('Monolog >= 2.3.6 is needed.');
-        }
-
         $this->expectException(\LogicException::class);
         $this->expectExceptionMessage('AsMonologProcessor attribute cannot declare a method on "Symfony\Bundle\MonologBundle\Tests\DependencyInjection\Fixtures\AsMonologProcessor\RedeclareMethodProcessor::__invoke()".');
 
diff --git a/composer.json b/composer.json
index 91b22061..09353645 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
         "symfony/dependency-injection": "^5.4 || ^6.0 || ^7.0",
         "symfony/config": "^5.4 || ^6.0 || ^7.0",
         "symfony/http-kernel": "^5.4 || ^6.0 || ^7.0",
-        "monolog/monolog": "^1.25.1 || ^2.0 || ^3.0"
+        "monolog/monolog": "^2.4 || ^3.0"
     },
     "require-dev": {
         "symfony/yaml": "^5.4 || ^6.0 || ^7.0",