diff --git a/UPGRADE-6.1.md b/UPGRADE-6.1.md
index 7c1c91fd4e62e..4800052c26206 100644
--- a/UPGRADE-6.1.md
+++ b/UPGRADE-6.1.md
@@ -1,6 +1,11 @@
 UPGRADE FROM 6.0 to 6.1
 =======================
 
+Console
+-------
+
+ * Deprecate `Command::$defaultName` and `Command::$defaultDescription`, use the `AsCommand` attribute instead.
+
 Serializer
 ----------
 
diff --git a/src/Symfony/Component/Console/CHANGELOG.md b/src/Symfony/Component/Console/CHANGELOG.md
index e7f9325125c25..8a34f80b0b6af 100644
--- a/src/Symfony/Component/Console/CHANGELOG.md
+++ b/src/Symfony/Component/Console/CHANGELOG.md
@@ -5,6 +5,7 @@ CHANGELOG
 ---
 
  * Add method `__toString()` to `InputInterface`
+ * Deprecate `Command::$defaultName` and `Command::$defaultDescription`, use the `AsCommand` attribute instead.
 
 6.0
 ---
diff --git a/src/Symfony/Component/Console/Command/Command.php b/src/Symfony/Component/Console/Command/Command.php
index 0bd3426c07eb3..e84307207a92f 100644
--- a/src/Symfony/Component/Console/Command/Command.php
+++ b/src/Symfony/Component/Console/Command/Command.php
@@ -39,11 +39,15 @@ class Command
 
     /**
      * @var string|null The default command name
+     *
+     * @deprecated since Symfony 6.1, use the AsCommand attribute instead
      */
     protected static $defaultName;
 
     /**
      * @var string|null The default command description
+     *
+     * @deprecated since Symfony 6.1, use the AsCommand attribute instead
      */
     protected static $defaultDescription;
 
@@ -72,7 +76,13 @@ public static function getDefaultName(): ?string
 
         $r = new \ReflectionProperty($class, 'defaultName');
 
-        return $class === $r->class ? static::$defaultName : null;
+        if ($class !== $r->class || null === static::$defaultName) {
+            return null;
+        }
+
+        trigger_deprecation('symfony/console', '6.1', 'Relying on the static property "$defaultName" for setting a command name is deprecated. Add the "%s" attribute to the "%s" class instead.', AsCommand::class, static::class);
+
+        return static::$defaultName;
     }
 
     public static function getDefaultDescription(): ?string
@@ -85,7 +95,13 @@ public static function getDefaultDescription(): ?string
 
         $r = new \ReflectionProperty($class, 'defaultDescription');
 
-        return $class === $r->class ? static::$defaultDescription : null;
+        if ($class !== $r->class || null === static::$defaultDescription) {
+            return null;
+        }
+
+        trigger_deprecation('symfony/console', '6.1', 'Relying on the static property "$defaultDescription" for setting a command description is deprecated. Add the "%s" attribute to the "%s" class instead.', AsCommand::class, static::class);
+
+        return static::$defaultDescription;
     }
 
     /**
diff --git a/src/Symfony/Component/Console/Command/CompleteCommand.php b/src/Symfony/Component/Console/Command/CompleteCommand.php
index 4fb3398eb9586..882f5b72f58e5 100644
--- a/src/Symfony/Component/Console/Command/CompleteCommand.php
+++ b/src/Symfony/Component/Console/Command/CompleteCommand.php
@@ -11,6 +11,7 @@
 
 namespace Symfony\Component\Console\Command;
 
+use Symfony\Component\Console\Attribute\AsCommand;
 use Symfony\Component\Console\Completion\CompletionInput;
 use Symfony\Component\Console\Completion\CompletionSuggestions;
 use Symfony\Component\Console\Completion\Output\BashCompletionOutput;
@@ -27,9 +28,17 @@
  *
  * @author Wouter de Jong <wouter@wouterj.nl>
  */
+#[AsCommand(name: '|_complete', description: 'Internal command to provide shell completion suggestions')]
 final class CompleteCommand extends Command
 {
+    /**
+     * @deprecated since Symfony 6.1
+     */
     protected static $defaultName = '|_complete';
+
+    /**
+     * @deprecated since Symfony 6.1
+     */
     protected static $defaultDescription = 'Internal command to provide shell completion suggestions';
 
     private $completionOutputs;
diff --git a/src/Symfony/Component/Console/Command/DumpCompletionCommand.php b/src/Symfony/Component/Console/Command/DumpCompletionCommand.php
index 697ade52741af..6b9364ada48a8 100644
--- a/src/Symfony/Component/Console/Command/DumpCompletionCommand.php
+++ b/src/Symfony/Component/Console/Command/DumpCompletionCommand.php
@@ -11,6 +11,7 @@
 
 namespace Symfony\Component\Console\Command;
 
+use Symfony\Component\Console\Attribute\AsCommand;
 use Symfony\Component\Console\Completion\CompletionInput;
 use Symfony\Component\Console\Completion\CompletionSuggestions;
 use Symfony\Component\Console\Input\InputArgument;
@@ -25,9 +26,17 @@
  *
  * @author Wouter de Jong <wouter@wouterj.nl>
  */
+#[AsCommand(name: 'completion', description: 'Dump the shell completion script')]
 final class DumpCompletionCommand extends Command
 {
+    /**
+     * @deprecated since Symfony 6.1
+     */
     protected static $defaultName = 'completion';
+
+    /**
+     * @deprecated since Symfony 6.1
+     */
     protected static $defaultDescription = 'Dump the shell completion script';
 
     public function complete(CompletionInput $input, CompletionSuggestions $suggestions): void
diff --git a/src/Symfony/Component/Console/Tests/ApplicationTest.php b/src/Symfony/Component/Console/Tests/ApplicationTest.php
index c5acd5c8666fe..77764de3cdbc1 100644
--- a/src/Symfony/Component/Console/Tests/ApplicationTest.php
+++ b/src/Symfony/Component/Console/Tests/ApplicationTest.php
@@ -13,6 +13,7 @@
 
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\Console\Application;
+use Symfony\Component\Console\Attribute\AsCommand;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Command\HelpCommand;
 use Symfony\Component\Console\Command\LazyCommand;
@@ -1968,13 +1969,12 @@ public function isEnabled(): bool
     }
 }
 
+#[AsCommand(name: 'signal')]
 class SignableCommand extends Command implements SignalableCommandInterface
 {
     public $signaled = false;
     public $loop = 100;
 
-    protected static $defaultName = 'signal';
-
     public function getSubscribedSignals(): array
     {
         return SignalRegistry::isSupported() ? [\SIGALRM] : [];
diff --git a/src/Symfony/Component/Console/Tests/Command/CommandTest.php b/src/Symfony/Component/Console/Tests/Command/CommandTest.php
index 1ce203860d8c4..d14c55df26628 100644
--- a/src/Symfony/Component/Console/Tests/Command/CommandTest.php
+++ b/src/Symfony/Component/Console/Tests/Command/CommandTest.php
@@ -12,6 +12,7 @@
 namespace Symfony\Component\Console\Tests\Command;
 
 use PHPUnit\Framework\TestCase;
+use Symfony\Bridge\PhpUnit\ExpectDeprecationTrait;
 use Symfony\Component\Console\Application;
 use Symfony\Component\Console\Attribute\AsCommand;
 use Symfony\Component\Console\Command\Command;
@@ -28,6 +29,8 @@
 
 class CommandTest extends TestCase
 {
+    use ExpectDeprecationTrait;
+
     protected static $fixturesPath;
 
     public static function setUpBeforeClass(): void
@@ -420,6 +423,48 @@ public function testCommandAttribute()
         $this->assertSame(['f'], $command->getAliases());
     }
 
+    /**
+     * @group legacy
+     */
+    public function testDefaultNameProperty()
+    {
+        $this->expectDeprecation('Since symfony/console 6.1: Relying on the static property "$defaultName" for setting a command name is deprecated. Add the "Symfony\Component\Console\Attribute\AsCommand" attribute to the "Symfony\Component\Console\Tests\Command\MyCommand" class instead.');
+
+        $this->assertSame('my:command', MyCommand::getDefaultName());
+    }
+
+    /**
+     * @group legacy
+     */
+    public function testDefaultDescriptionProperty()
+    {
+        $this->expectDeprecation('Since symfony/console 6.1: Relying on the static property "$defaultDescription" for setting a command description is deprecated. Add the "Symfony\Component\Console\Attribute\AsCommand" attribute to the "Symfony\Component\Console\Tests\Command\MyCommand" class instead.');
+
+        $this->assertSame('This is a command I wrote all by myself', MyCommand::getDefaultDescription());
+    }
+
+    /**
+     * @group legacy
+     */
+    public function testStaticDefaultProperties()
+    {
+        $command = new MyCommand();
+
+        $this->assertSame('my:command', $command->getName());
+        $this->assertSame('This is a command I wrote all by myself', $command->getDescription());
+    }
+
+    public function testAttributeOverridesProperty()
+    {
+        $this->assertSame('my:command', MyAnnotatedCommand::getDefaultName());
+        $this->assertSame('This is a command I wrote all by myself', MyAnnotatedCommand::getDefaultDescription());
+
+        $command = new MyAnnotatedCommand();
+
+        $this->assertSame('my:command', $command->getName());
+        $this->assertSame('This is a command I wrote all by myself', $command->getDescription());
+    }
+
     public function testDefaultCommand()
     {
         $apl = new Application();
@@ -455,3 +500,16 @@ class Php8Command extends Command
 class Php8Command2 extends Command
 {
 }
+
+class MyCommand extends Command
+{
+    protected static $defaultName = 'my:command';
+    protected static $defaultDescription = 'This is a command I wrote all by myself';
+}
+
+#[AsCommand(name: 'my:command', description: 'This is a command I wrote all by myself')]
+class MyAnnotatedCommand extends Command
+{
+    protected static $defaultName = 'i-shall-be-ignored';
+    protected static $defaultDescription = 'This description should be ignored.';
+}
diff --git a/src/Symfony/Component/Console/Tests/ConsoleEventsTest.php b/src/Symfony/Component/Console/Tests/ConsoleEventsTest.php
index 45eb2220d1743..6f50e7401732a 100644
--- a/src/Symfony/Component/Console/Tests/ConsoleEventsTest.php
+++ b/src/Symfony/Component/Console/Tests/ConsoleEventsTest.php
@@ -13,6 +13,7 @@
 
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\Console\Application;
+use Symfony\Component\Console\Attribute\AsCommand;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\ConsoleEvents;
 use Symfony\Component\Console\Event\ConsoleCommandEvent;
@@ -75,10 +76,9 @@ public function observe(object $event): void
     }
 }
 
+#[AsCommand(name: 'fail')]
 class FailingCommand extends Command
 {
-    protected static $defaultName = 'fail';
-
     protected function execute(InputInterface $input, OutputInterface $output): int
     {
         throw new \RuntimeException('I failed. Sorry.');
diff --git a/src/Symfony/Component/Console/Tests/DependencyInjection/AddConsoleCommandPassTest.php b/src/Symfony/Component/Console/Tests/DependencyInjection/AddConsoleCommandPassTest.php
index aa92c76f159c3..adbc61e85d1bb 100644
--- a/src/Symfony/Component/Console/Tests/DependencyInjection/AddConsoleCommandPassTest.php
+++ b/src/Symfony/Component/Console/Tests/DependencyInjection/AddConsoleCommandPassTest.php
@@ -12,6 +12,7 @@
 namespace Symfony\Component\Console\Tests\DependencyInjection;
 
 use PHPUnit\Framework\TestCase;
+use Symfony\Component\Console\Attribute\AsCommand;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Command\LazyCommand;
 use Symfony\Component\Console\CommandLoader\ContainerCommandLoader;
@@ -281,18 +282,16 @@ class MyCommand extends Command
 {
 }
 
+#[AsCommand(name: 'default')]
 class NamedCommand extends Command
 {
-    protected static $defaultName = 'default';
 }
 
+#[AsCommand(name: '|cmdname|cmdalias', description: 'Just testing')]
 class DescribedCommand extends Command
 {
     public static $initCounter = 0;
 
-    protected static $defaultName = '|cmdname|cmdalias';
-    protected static $defaultDescription = 'Just testing';
-
     public function __construct()
     {
         ++self::$initCounter;
diff --git a/src/Symfony/Component/Console/composer.json b/src/Symfony/Component/Console/composer.json
index 7d3947fcc7ec1..4045b7f2154c2 100644
--- a/src/Symfony/Component/Console/composer.json
+++ b/src/Symfony/Component/Console/composer.json
@@ -17,6 +17,7 @@
     ],
     "require": {
         "php": ">=8.0.2",
+        "symfony/deprecation-contracts": "^2.1|^3",
         "symfony/polyfill-mbstring": "~1.0",
         "symfony/service-contracts": "^1.1|^2|^3",
         "symfony/string": "^5.4|^6.0"
diff --git a/src/Symfony/Component/Dotenv/Command/DebugCommand.php b/src/Symfony/Component/Dotenv/Command/DebugCommand.php
index 925d99328eeb9..8827460caf432 100644
--- a/src/Symfony/Component/Dotenv/Command/DebugCommand.php
+++ b/src/Symfony/Component/Dotenv/Command/DebugCommand.php
@@ -11,6 +11,7 @@
 
 namespace Symfony\Component\Dotenv\Command;
 
+use Symfony\Component\Console\Attribute\AsCommand;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Output\OutputInterface;
@@ -22,9 +23,17 @@
  *
  * @author Christopher Hertel <mail@christopher-hertel.de>
  */
+#[AsCommand(name: 'debug:dotenv', description: 'Lists all dotenv files with variables and values')]
 final class DebugCommand extends Command
 {
+    /**
+     * @deprecated since Symfony 6.1
+     */
     protected static $defaultName = 'debug:dotenv';
+
+    /**
+     * @deprecated since Symfony 6.1
+     */
     protected static $defaultDescription = 'Lists all dotenv files with variables and values';
 
     private $kernelEnvironment;
diff --git a/src/Symfony/Component/Dotenv/composer.json b/src/Symfony/Component/Dotenv/composer.json
index 2bea7d4842100..d5e7aed8dd499 100644
--- a/src/Symfony/Component/Dotenv/composer.json
+++ b/src/Symfony/Component/Dotenv/composer.json
@@ -22,6 +22,9 @@
         "symfony/console": "^5.4|^6.0",
         "symfony/process": "^5.4|^6.0"
     },
+    "conflict": {
+        "symfony/console": "<5.4"
+    },
     "autoload": {
         "psr-4": { "Symfony\\Component\\Dotenv\\": "" },
         "exclude-from-classmap": [