diff --git a/core/lib/Drupal/Core/Extension/Exception/ObsoleteExtensionException.php b/core/lib/Drupal/Core/Extension/Exception/ObsoleteExtensionException.php
new file mode 100644
index 0000000..6c2829d
--- /dev/null
+++ b/core/lib/Drupal/Core/Extension/Exception/ObsoleteExtensionException.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Drupal\Core\Extension\Exception;
+
+/**
+ * Exception thrown when the extension is obsolete on module install.
+ */
+class ObsoleteExtensionException extends \Exception {}
diff --git a/core/lib/Drupal/Core/Extension/ExtensionStatus.php b/core/lib/Drupal/Core/Extension/ExtensionStatus.php
new file mode 100644
index 0000000..4f1d882
--- /dev/null
+++ b/core/lib/Drupal/Core/Extension/ExtensionStatus.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace Drupal\Core\Extension;
+
+/**
+ * Extension statuses.
+ *
+ * The lifecycle of a core module can go through the following progression:
+ * 1. Starts "experimental".
+ * 2. Stabilizes and goes "normal".
+ * 3. Eventually (maybe), becomes "deprecated" on the way out of core.
+ * 4. Finally (maybe), becomes "obsolete" and can't be enabled anymore.
+ */
+final class ExtensionStatus {
+
+  /**
+   * Extension is experimental. Warnings will be shown if installed.
+   */
+  const EXPERIMENTAL = 'experimental';
+
+  /**
+   * Extension is normal. This is the default value of any extension.
+   */
+  const NORMAL = 'normal';
+
+  /**
+   * Extension is deprecated. Warnings will be shown if still installed.
+   */
+  const DEPRECATED = 'deprecated';
+
+  /**
+   * Extension is obsolete and installation will be prevented.
+   */
+  const OBSOLETE = 'obsolete';
+
+  /**
+   * Determines if a given extension status string is valid.
+   *
+   * @param string $status
+   *   The status to validate.
+   *
+   * @return bool
+   *   TRUE if the status is valid, otherwise FALSE.
+   */
+  public static function isValid($status) : bool {
+    $valid_statuses = [
+      self::EXPERIMENTAL,
+      self::NORMAL,
+      self::DEPRECATED,
+      self::OBSOLETE,
+    ];
+    return in_array($status, $valid_statuses, TRUE);
+  }
+
+}
diff --git a/core/lib/Drupal/Core/Extension/InfoParserDynamic.php b/core/lib/Drupal/Core/Extension/InfoParserDynamic.php
index 46e2484..bf4ca31 100644
--- a/core/lib/Drupal/Core/Extension/InfoParserDynamic.php
+++ b/core/lib/Drupal/Core/Extension/InfoParserDynamic.php
@@ -107,6 +107,12 @@ public function parse($filename) {
       if (isset($parsed_info['version']) && $parsed_info['version'] === 'VERSION') {
         $parsed_info['version'] = \Drupal::VERSION;
       }
+      if (!isset($parsed_info['status'])) {
+        $parsed_info['status'] = ExtensionStatus::NORMAL;
+      }
+      if (!ExtensionStatus::isValid($parsed_info['status'])) {
+        throw new InfoParserException("'status: {$parsed_info['status']}' is not valid in $filename");
+      }
     }
     return $parsed_info;
   }
diff --git a/core/lib/Drupal/Core/Extension/ModuleInstaller.php b/core/lib/Drupal/Core/Extension/ModuleInstaller.php
index bc2f9d0..ff3bab1 100644
--- a/core/lib/Drupal/Core/Extension/ModuleInstaller.php
+++ b/core/lib/Drupal/Core/Extension/ModuleInstaller.php
@@ -7,6 +7,7 @@
 use Drupal\Core\DrupalKernelInterface;
 use Drupal\Core\Entity\EntityStorageException;
 use Drupal\Core\Entity\FieldableEntityInterface;
+use Drupal\Core\Extension\Exception\ObsoleteExtensionException;
 use Drupal\Core\Installer\InstallerKernel;
 use Drupal\Core\Serialization\Yaml;
 
@@ -91,6 +92,9 @@ public function install(array $module_list, $enable_dependencies = TRUE) {
       if (!empty($module_data[$module]->info['core_incompatible'])) {
         throw new MissingDependencyException("Unable to install modules: module '$module' is incompatible with this version of Drupal core.");
       }
+      if ($module_data[$module]->info['status'] === ExtensionStatus::OBSOLETE) {
+        throw new ObsoleteExtensionException("Unable to install modules: module '$module' is obsolete.");
+      }
     }
     if ($enable_dependencies) {
       $module_list = $module_list ? array_combine($module_list, $module_list) : [];
diff --git a/core/modules/entity_reference/entity_reference.info.yml b/core/modules/entity_reference/entity_reference.info.yml
index 717ef21..cb3fdfe 100644
--- a/core/modules/entity_reference/entity_reference.info.yml
+++ b/core/modules/entity_reference/entity_reference.info.yml
@@ -1,6 +1,7 @@
 name: 'Entity Reference'
 type: module
-description: 'Deprecated. All the functionality has been moved to Core.'
+description: 'Obsolete. All the functionality has been moved to Core.'
+status: obsolete
 package: Field types
 version: VERSION
 hidden: true
diff --git a/core/modules/field/tests/src/Functional/EntityReference/EntityReferenceFileUploadTest.php b/core/modules/field/tests/src/Functional/EntityReference/EntityReferenceFileUploadTest.php
index 80ad399..68d0464 100644
--- a/core/modules/field/tests/src/Functional/EntityReference/EntityReferenceFileUploadTest.php
+++ b/core/modules/field/tests/src/Functional/EntityReference/EntityReferenceFileUploadTest.php
@@ -17,7 +17,7 @@ class EntityReferenceFileUploadTest extends BrowserTestBase {
 
   use TestFileCreationTrait;
 
-  protected static $modules = ['entity_reference', 'node', 'file'];
+  protected static $modules = ['node', 'file'];
 
   /**
    * {@inheritdoc}
diff --git a/core/modules/field_layout/field_layout.info.yml b/core/modules/field_layout/field_layout.info.yml
index f4b676f..ae1386a 100644
--- a/core/modules/field_layout/field_layout.info.yml
+++ b/core/modules/field_layout/field_layout.info.yml
@@ -2,6 +2,7 @@ name: 'Field Layout'
 type: module
 description: 'Allows users to configure the display and form display by arranging fields in several columns.'
 package: Core (Experimental)
+status: experimental
 version: VERSION
 dependencies:
   - drupal:layout_discovery
diff --git a/core/modules/help/src/Controller/HelpController.php b/core/modules/help/src/Controller/HelpController.php
index 2c925a6..fcce940 100644
--- a/core/modules/help/src/Controller/HelpController.php
+++ b/core/modules/help/src/Controller/HelpController.php
@@ -4,6 +4,7 @@
 
 use Drupal\Core\Cache\CacheableMetadata;
 use Drupal\Core\Controller\ControllerBase;
+use Drupal\Core\Extension\ExtensionStatus;
 use Drupal\Core\Extension\ModuleExtensionList;
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\help\HelpSectionManager;
@@ -132,7 +133,7 @@ public function helpPage($name) {
       $build['#title'] = $module_name;
 
       $info = $this->moduleExtensionList->getExtensionInfo($name);
-      if ($info['package'] === 'Core (Experimental)') {
+      if ($info['status'] === ExtensionStatus::EXPERIMENTAL) {
         $this->messenger()->addWarning($this->t('This module is experimental. <a href=":url">Experimental modules</a> are provided for testing purposes only. Use at your own risk.', [':url' => 'https://www.drupal.org/core/experimental']));
       }
 
diff --git a/core/modules/help_topics/help_topics.info.yml b/core/modules/help_topics/help_topics.info.yml
index 819aef1..d7dd205 100644
--- a/core/modules/help_topics/help_topics.info.yml
+++ b/core/modules/help_topics/help_topics.info.yml
@@ -2,6 +2,7 @@ name: Help Topics
 type: module
 description: 'Displays help topics provided by themes and modules.'
 package: Core (Experimental)
+status: experimental
 version: VERSION
 dependencies:
   - drupal:help
diff --git a/core/modules/help_topics/tests/src/Functional/HelpTopicsSyntaxTest.php b/core/modules/help_topics/tests/src/Functional/HelpTopicsSyntaxTest.php
index a442319..a6d3ae1 100644
--- a/core/modules/help_topics/tests/src/Functional/HelpTopicsSyntaxTest.php
+++ b/core/modules/help_topics/tests/src/Functional/HelpTopicsSyntaxTest.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\Tests\help_topics\Functional;
 
+use Drupal\Core\Extension\ExtensionStatus;
 use Drupal\Tests\BrowserTestBase;
 use Drupal\help_topics\HelpTopicDiscovery;
 use PHPUnit\Framework\ExpectationFailedException;
@@ -278,7 +279,11 @@ protected function listDirectories($type) {
     // Find the extensions of this type, even if they are not installed, but
     // excluding test ones.
     $lister = \Drupal::service('extension.list.' . $type);
-    foreach (array_keys($lister->getAllAvailableInfo()) as $name) {
+    foreach ($lister->getAllAvailableInfo() as $name => $info) {
+      // Skip obsolete modules.
+      if (isset($info['status']) && $info['status'] === ExtensionStatus::OBSOLETE) {
+        continue;
+      }
       $path = $lister->getPath($name);
       // You can tell test modules because they are in package 'Testing', but
       // test themes are only known by being found in test directories. So...
diff --git a/core/modules/jsonapi/tests/src/Functional/TestCoverageTest.php b/core/modules/jsonapi/tests/src/Functional/TestCoverageTest.php
index 1a306bb..2a5f668 100644
--- a/core/modules/jsonapi/tests/src/Functional/TestCoverageTest.php
+++ b/core/modules/jsonapi/tests/src/Functional/TestCoverageTest.php
@@ -3,6 +3,7 @@
 namespace Drupal\Tests\jsonapi\Functional;
 
 use Drupal\Core\Entity\EntityTypeInterface;
+use Drupal\Core\Extension\ExtensionStatus;
 use Drupal\Tests\BrowserTestBase;
 
 /**
@@ -38,7 +39,7 @@ protected function setUp(): void {
         && empty($module->info['hidden'])
         && $module->status == FALSE
         && $module->info['package'] !== 'Testing'
-        && $module->info['package'] !== 'Core (Experimental)';
+        && $module->info['status'] !== ExtensionStatus::EXPERIMENTAL;
     });
 
     $this->container->get('module_installer')->install(array_keys($stable_core_modules));
diff --git a/core/modules/migrate_drupal_multilingual/migrate_drupal_multilingual.info.yml b/core/modules/migrate_drupal_multilingual/migrate_drupal_multilingual.info.yml
index 7f7b59e..622c198 100644
--- a/core/modules/migrate_drupal_multilingual/migrate_drupal_multilingual.info.yml
+++ b/core/modules/migrate_drupal_multilingual/migrate_drupal_multilingual.info.yml
@@ -2,6 +2,7 @@ name: 'Migrate Drupal Multilingual'
 type: module
 description: 'Provides a requirement for multilingual migrations.'
 package: 'Core (Experimental)'
+status: experimental
 version: VERSION
 dependencies:
   - drupal:migrate_drupal
diff --git a/core/modules/rest/tests/src/Functional/EntityResource/EntityResourceRestTestCoverageTest.php b/core/modules/rest/tests/src/Functional/EntityResource/EntityResourceRestTestCoverageTest.php
index d84edf3..c130b2f 100644
--- a/core/modules/rest/tests/src/Functional/EntityResource/EntityResourceRestTestCoverageTest.php
+++ b/core/modules/rest/tests/src/Functional/EntityResource/EntityResourceRestTestCoverageTest.php
@@ -3,6 +3,7 @@
 namespace Drupal\Tests\rest\Functional\EntityResource;
 
 use Drupal\Core\Entity\EntityTypeInterface;
+use Drupal\Core\Extension\ExtensionStatus;
 use Drupal\Tests\BrowserTestBase;
 
 /**
@@ -42,7 +43,7 @@ protected function setUp(): void {
         empty($module->info['hidden']) &&
         $module->status == FALSE &&
         $module->info['package'] !== 'Testing' &&
-        $module->info['package'] !== 'Core (Experimental)';
+        $module->info['status'] !== ExtensionStatus::EXPERIMENTAL;
     });
 
     $this->container->get('module_installer')->install(array_keys($stable_core_modules));
diff --git a/core/modules/search/tests/src/Functional/SearchPageCacheTagsTest.php b/core/modules/search/tests/src/Functional/SearchPageCacheTagsTest.php
index fd45196..f7e1580 100644
--- a/core/modules/search/tests/src/Functional/SearchPageCacheTagsTest.php
+++ b/core/modules/search/tests/src/Functional/SearchPageCacheTagsTest.php
@@ -136,8 +136,8 @@ public function testSearchText() {
    */
   public function testSearchTagsBubbling() {
 
-    // Install field UI and entity reference modules.
-    $this->container->get('module_installer')->install(['field_ui', 'entity_reference']);
+    // Install field UI module.
+    $this->container->get('module_installer')->install(['field_ui']);
     $this->resetAll();
 
     // Creates a new content type that will have an entity reference.
diff --git a/core/modules/simpletest/simpletest.info.yml b/core/modules/simpletest/simpletest.info.yml
index 6cb3548..9cbdc55 100644
--- a/core/modules/simpletest/simpletest.info.yml
+++ b/core/modules/simpletest/simpletest.info.yml
@@ -1,6 +1,7 @@
 name: Testing
 type: module
-description: 'Deprecated. SimpleTest has been removed from core.'
+description: 'Obsolete. SimpleTest has been removed from core.'
+status: obsolete
 package: Core
 version: VERSION
 hidden: true
diff --git a/core/modules/system/src/Form/ModulesListForm.php b/core/modules/system/src/Form/ModulesListForm.php
index 66e0fbc..5468923 100644
--- a/core/modules/system/src/Form/ModulesListForm.php
+++ b/core/modules/system/src/Form/ModulesListForm.php
@@ -6,6 +6,7 @@
 use Drupal\Core\Config\UnmetDependenciesException;
 use Drupal\Core\Access\AccessManagerInterface;
 use Drupal\Core\Extension\Extension;
+use Drupal\Core\Extension\ExtensionStatus;
 use Drupal\Core\Extension\InfoParserException;
 use Drupal\Core\Extension\ModuleExtensionList;
 use Drupal\Core\Extension\ModuleHandlerInterface;
@@ -404,7 +405,7 @@ protected function buildModuleList(FormStateInterface $form_state) {
       elseif (($checkbox = $form_state->getValue(['modules', $name], FALSE)) && $checkbox['enable']) {
         $modules['install'][$name] = $data[$name]->info['name'];
         // Identify experimental modules.
-        if ($data[$name]->info['package'] == 'Core (Experimental)') {
+        if ($data[$name]->info['status'] === ExtensionStatus::EXPERIMENTAL) {
           $modules['experimental'][$name] = $data[$name]->info['name'];
         }
       }
@@ -418,7 +419,7 @@ protected function buildModuleList(FormStateInterface $form_state) {
           $modules['install'][$dependency] = $data[$dependency]->info['name'];
 
           // Identify experimental modules.
-          if ($data[$dependency]->info['package'] == 'Core (Experimental)') {
+          if ($data[$dependency]->info['status'] === ExtensionStatus::EXPERIMENTAL) {
             $modules['experimental'][$dependency] = $data[$dependency]->info['name'];
           }
         }
diff --git a/core/modules/system/system.install b/core/modules/system/system.install
index e4cb7ce..9e1fdeb 100644
--- a/core/modules/system/system.install
+++ b/core/modules/system/system.install
@@ -15,6 +15,7 @@
 use Drupal\Core\DrupalKernel;
 use Drupal\Core\Entity\Sql\SqlContentEntityStorage;
 use Drupal\Core\Entity\Sql\SqlContentEntityStorageSchema;
+use Drupal\Core\Extension\ExtensionStatus;
 use Drupal\Core\File\FileSystemInterface;
 use Drupal\Core\Site\Settings;
 use Drupal\Core\StreamWrapper\PrivateStream;
@@ -65,7 +66,7 @@ function system_requirements($phase) {
     $enabled_modules = \Drupal::moduleHandler()->getModuleList();
     foreach ($enabled_modules as $module => $data) {
       $info = \Drupal::service('extension.list.module')->getExtensionInfo($module);
-      if (isset($info['package']) && $info['package'] === 'Core (Experimental)') {
+      if (isset($info['status']) && $info['status'] === ExtensionStatus::EXPERIMENTAL) {
         $experimental_modules[$module] = $info['name'];
       }
     }
diff --git a/core/modules/system/tests/modules/experimental_module_requirements_test/experimental_module_requirements_test.info.yml b/core/modules/system/tests/modules/experimental_module_requirements_test/experimental_module_requirements_test.info.yml
index 7d94791..2b625dc 100644
--- a/core/modules/system/tests/modules/experimental_module_requirements_test/experimental_module_requirements_test.info.yml
+++ b/core/modules/system/tests/modules/experimental_module_requirements_test/experimental_module_requirements_test.info.yml
@@ -2,4 +2,5 @@ name: 'Experimental Requirements Test'
 type: module
 description: 'Module in the experimental package to test hook_requirements() with an experimental module.'
 package: Core (Experimental)
+status: experimental
 version: VERSION
diff --git a/core/modules/system/tests/modules/experimental_module_test/experimental_module_test.info.yml b/core/modules/system/tests/modules/experimental_module_test/experimental_module_test.info.yml
index c00a800..80c97d7 100644
--- a/core/modules/system/tests/modules/experimental_module_test/experimental_module_test.info.yml
+++ b/core/modules/system/tests/modules/experimental_module_test/experimental_module_test.info.yml
@@ -2,4 +2,5 @@ name: 'Experimental Test'
 type: module
 description: 'Module in the experimental package to test experimental functionality.'
 package: Core (Experimental)
+status: experimental
 version: 8.y.x-unstable
diff --git a/core/modules/system/tests/modules/system_status_obsolete_test/system_status_obsolete_test.info.yml b/core/modules/system/tests/modules/system_status_obsolete_test/system_status_obsolete_test.info.yml
new file mode 100644
index 0000000..e053435
--- /dev/null
+++ b/core/modules/system/tests/modules/system_status_obsolete_test/system_status_obsolete_test.info.yml
@@ -0,0 +1,6 @@
+name: 'System obsolete status test'
+type: module
+description: 'Support module for testing an obsolete module extension.'
+package: Testing
+version: VERSION
+status: obsolete
diff --git a/core/modules/system/tests/src/Functional/Module/InstallUninstallTest.php b/core/modules/system/tests/src/Functional/Module/InstallUninstallTest.php
index 5c41c29..4762fb6 100644
--- a/core/modules/system/tests/src/Functional/Module/InstallUninstallTest.php
+++ b/core/modules/system/tests/src/Functional/Module/InstallUninstallTest.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\Tests\system\Functional\Module;
 
+use Drupal\Core\Extension\ExtensionStatus;
 use Drupal\Core\Logger\RfcLogLevel;
 use Drupal\workspaces\Entity\Workspace;
 
@@ -103,12 +104,12 @@ public function testInstallUninstall() {
 
       // Install the module.
       $edit = [];
-      $package = $module->info['package'];
+      $status = $module->info['status'];
       $edit['modules[' . $name . '][enable]'] = TRUE;
       $this->drupalPostForm('admin/modules', $edit, 'Install');
 
       // Handle experimental modules, which require a confirmation screen.
-      if ($package == 'Core (Experimental)') {
+      if ($status === ExtensionStatus::EXPERIMENTAL) {
         $this->assertText('Are you sure you wish to enable experimental modules?');
         if (count($modules_to_install) > 1) {
           // When there are experimental modules, needed dependencies do not
@@ -211,7 +212,7 @@ public function testInstallUninstall() {
     foreach ($all_modules as $name => $module) {
       $edit['modules[' . $name . '][enable]'] = TRUE;
       // Track whether there is at least one experimental module.
-      if ($module->info['package'] == 'Core (Experimental)') {
+      if ($module->info['status'] === ExtensionStatus::EXPERIMENTAL) {
         $experimental = TRUE;
       }
     }
diff --git a/core/modules/system/tests/src/Kernel/Entity/EntityReferenceSelectionReferenceableTest.php b/core/modules/system/tests/src/Kernel/Entity/EntityReferenceSelectionReferenceableTest.php
index a4bea10..ba2d962 100644
--- a/core/modules/system/tests/src/Kernel/Entity/EntityReferenceSelectionReferenceableTest.php
+++ b/core/modules/system/tests/src/Kernel/Entity/EntityReferenceSelectionReferenceableTest.php
@@ -45,7 +45,6 @@ class EntityReferenceSelectionReferenceableTest extends KernelTestBase {
     'system',
     'user',
     'field',
-    'entity_reference',
     'node',
     'entity_test',
   ];
diff --git a/core/modules/workspaces/workspaces.info.yml b/core/modules/workspaces/workspaces.info.yml
index 11ac79a..3ec4b25 100644
--- a/core/modules/workspaces/workspaces.info.yml
+++ b/core/modules/workspaces/workspaces.info.yml
@@ -3,6 +3,7 @@ type: module
 description: 'Allows users to stage content or preview a full site by using multiple workspaces on a single site.'
 version: VERSION
 package: Core (Experimental)
+status: experimental
 configure: entity.workspace.collection
 dependencies:
  - drupal:user
diff --git a/core/profiles/demo_umami/modules/demo_umami_content/demo_umami_content.info.yml b/core/profiles/demo_umami/modules/demo_umami_content/demo_umami_content.info.yml
index 9c97b0a..75c6e07 100644
--- a/core/profiles/demo_umami/modules/demo_umami_content/demo_umami_content.info.yml
+++ b/core/profiles/demo_umami/modules/demo_umami_content/demo_umami_content.info.yml
@@ -3,6 +3,7 @@ description: Imports the content for the Umami demo.
 type: module
 version: VERSION
 package: 'Core (Experimental)'
+status: experimental
 hidden: true
 dependencies:
   - drupal:field
diff --git a/core/tests/Drupal/KernelTests/Config/DefaultConfigTest.php b/core/tests/Drupal/KernelTests/Config/DefaultConfigTest.php
index b8b4c61..6480c4f 100644
--- a/core/tests/Drupal/KernelTests/Config/DefaultConfigTest.php
+++ b/core/tests/Drupal/KernelTests/Config/DefaultConfigTest.php
@@ -6,6 +6,7 @@
 use Drupal\Core\Config\FileStorage;
 use Drupal\Core\Config\InstallStorage;
 use Drupal\Core\Config\StorageInterface;
+use Drupal\Core\Extension\ExtensionStatus;
 use Drupal\KernelTests\AssertConfigTrait;
 use Drupal\KernelTests\FileSystemModuleDiscoveryDataProviderTrait;
 use Drupal\KernelTests\KernelTestBase;
@@ -124,7 +125,7 @@ protected function doTestsOnConfigStorage(StorageInterface $default_config_stora
       }
       else {
         $info = $this->container->get('extension.list.module')->getExtensionInfo($module);
-        if (!isset($info['package']) || $info['package'] !== 'Core (Experimental)') {
+        if (!isset($info['status']) || $info['status'] !== ExtensionStatus::EXPERIMENTAL) {
           $this->fail("$config_name provided by $module does not exist after installing all dependencies");
         }
       }
diff --git a/core/tests/Drupal/KernelTests/Core/Extension/ModuleInstallerTest.php b/core/tests/Drupal/KernelTests/Core/Extension/ModuleInstallerTest.php
index ed00b6b..27b84af 100644
--- a/core/tests/Drupal/KernelTests/Core/Extension/ModuleInstallerTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Extension/ModuleInstallerTest.php
@@ -4,6 +4,7 @@
 
 use Drupal\Core\Database\Database;
 use Drupal\Core\Extension\MissingDependencyException;
+use Drupal\Core\Extension\Exception\ObsoleteExtensionException;
 use Drupal\KernelTests\KernelTestBase;
 use Symfony\Component\Routing\Exception\RouteNotFoundException;
 
@@ -134,4 +135,15 @@ public function testDependencyInvalidCoreInstallNoDependencies() {
     $this->assertTrue($this->container->get('module_installer')->install(['system_incompatible_core_version_dependencies_test'], FALSE));
   }
 
+  /**
+   * Tests trying to install an obsolete module.
+   *
+   * @covers ::install
+   */
+  public function testObsoleteInstall() {
+    $this->expectException(ObsoleteExtensionException::class);
+    $this->expectExceptionMessage("Unable to install modules: module 'system_status_obsolete_test' is obsolete.");
+    $this->container->get('module_installer')->install(['system_status_obsolete_test']);
+  }
+
 }
diff --git a/core/tests/Drupal/KernelTests/Core/Theme/Stable9LibraryOverrideTest.php b/core/tests/Drupal/KernelTests/Core/Theme/Stable9LibraryOverrideTest.php
index 073e0f4..3b4f5d9 100644
--- a/core/tests/Drupal/KernelTests/Core/Theme/Stable9LibraryOverrideTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Theme/Stable9LibraryOverrideTest.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\KernelTests\Core\Theme;
 
+use Drupal\Core\Extension\ExtensionStatus;
 use Drupal\KernelTests\KernelTestBase;
 
 /**
@@ -64,7 +65,7 @@ protected function setUp(): void {
     $all_modules = array_filter($all_modules, function ($module) {
       // Filter contrib, hidden, experimental, already enabled modules, and
       // modules in the Testing package.
-      if ($module->origin !== 'core' || !empty($module->info['hidden']) || $module->status == TRUE || $module->info['package'] == 'Testing' || $module->info['package'] == 'Core (Experimental)') {
+      if ($module->origin !== 'core' || !empty($module->info['hidden']) || $module->status == TRUE || $module->info['package'] == 'Testing' || $module->info['status'] === ExtensionStatus::EXPERIMENTAL) {
         return FALSE;
       }
       return TRUE;
diff --git a/core/tests/Drupal/KernelTests/Core/Theme/Stable9TemplateOverrideTest.php b/core/tests/Drupal/KernelTests/Core/Theme/Stable9TemplateOverrideTest.php
index 22fc651..ca5477f 100644
--- a/core/tests/Drupal/KernelTests/Core/Theme/Stable9TemplateOverrideTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Theme/Stable9TemplateOverrideTest.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\KernelTests\Core\Theme;
 
+use Drupal\Core\Extension\ExtensionStatus;
 use Drupal\Core\Theme\Registry;
 use Drupal\KernelTests\KernelTestBase;
 
@@ -63,7 +64,7 @@ protected function installAllModules() {
     $all_modules = array_filter($all_modules, function ($module) {
       // Filter contrib, hidden, experimental, already enabled modules, and
       // modules in the Testing package.
-      if ($module->origin !== 'core' || !empty($module->info['hidden']) || $module->status == TRUE || $module->info['package'] == 'Testing' || $module->info['package'] == 'Core (Experimental)') {
+      if ($module->origin !== 'core' || !empty($module->info['hidden']) || $module->status == TRUE || $module->info['package'] == 'Testing' || $module->info['status'] === ExtensionStatus::EXPERIMENTAL) {
         return FALSE;
       }
       return TRUE;
diff --git a/core/tests/Drupal/KernelTests/Core/Theme/StableLibraryOverrideTest.php b/core/tests/Drupal/KernelTests/Core/Theme/StableLibraryOverrideTest.php
index e291cbe..80502d9 100644
--- a/core/tests/Drupal/KernelTests/Core/Theme/StableLibraryOverrideTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Theme/StableLibraryOverrideTest.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\KernelTests\Core\Theme;
 
+use Drupal\Core\Extension\ExtensionStatus;
 use Drupal\KernelTests\KernelTestBase;
 
 /**
@@ -64,7 +65,7 @@ protected function setUp(): void {
     $all_modules = array_filter($all_modules, function ($module) {
       // Filter contrib, hidden, experimental, already enabled modules, and
       // modules in the Testing package.
-      if ($module->origin !== 'core' || !empty($module->info['hidden']) || $module->status == TRUE || $module->info['package'] == 'Testing' || $module->info['package'] == 'Core (Experimental)') {
+      if ($module->origin !== 'core' || !empty($module->info['hidden']) || $module->status == TRUE || $module->info['package'] == 'Testing' || $module->info['status'] === ExtensionStatus::EXPERIMENTAL) {
         return FALSE;
       }
       return TRUE;
diff --git a/core/tests/Drupal/KernelTests/Core/Theme/StableTemplateOverrideTest.php b/core/tests/Drupal/KernelTests/Core/Theme/StableTemplateOverrideTest.php
index 6534baa..f404d3b 100644
--- a/core/tests/Drupal/KernelTests/Core/Theme/StableTemplateOverrideTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Theme/StableTemplateOverrideTest.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\KernelTests\Core\Theme;
 
+use Drupal\Core\Extension\ExtensionStatus;
 use Drupal\Core\Theme\Registry;
 use Drupal\KernelTests\KernelTestBase;
 
@@ -61,7 +62,7 @@ protected function installAllModules() {
     $all_modules = array_filter($all_modules, function ($module) {
       // Filter contrib, hidden, experimental, already enabled modules, and
       // modules in the Testing package.
-      if ($module->origin !== 'core' || !empty($module->info['hidden']) || $module->status == TRUE || $module->info['package'] == 'Testing' || $module->info['package'] == 'Core (Experimental)') {
+      if ($module->origin !== 'core' || !empty($module->info['hidden']) || $module->status == TRUE || $module->info['package'] == 'Testing' || $module->info['status'] === ExtensionStatus::EXPERIMENTAL) {
         return FALSE;
       }
       return TRUE;
diff --git a/core/tests/Drupal/Tests/Core/Extension/InfoParserUnitTest.php b/core/tests/Drupal/Tests/Core/Extension/InfoParserUnitTest.php
index 96652b7..f60a892 100644
--- a/core/tests/Drupal/Tests/Core/Extension/InfoParserUnitTest.php
+++ b/core/tests/Drupal/Tests/Core/Extension/InfoParserUnitTest.php
@@ -691,4 +691,110 @@ public function testCore8xNoCoreVersionRequirement() {
     }
   }
 
+  /**
+   * Tests an info file with valid status values.
+   *
+   * @covers ::parse
+   *
+   * @dataProvider providerValidStatus
+   */
+  public function testValidStatus($status, $expected) {
+    $info = <<<INFO
+package: Core
+core: 8.x
+version: VERSION
+type: module
+name: Module for That
+INFO;
+    if (!empty($status)) {
+      $info .= "\nstatus: $status\n";
+    }
+    vfsStream::setup('modules');
+    $filename = "status-$expected.info.txt";
+    vfsStream::create([
+      'fixtures' => [
+        $filename => $info,
+      ],
+    ]);
+    $info_values = $this->infoParser->parse(vfsStream::url("modules/fixtures/$filename"));
+    $this->assertSame($expected, $info_values['status']);
+  }
+
+  /**
+   * Data provider for testValidStatus().
+   */
+  public function providerValidStatus() {
+    return [
+      'empty' => [
+        '',
+        'normal',
+      ],
+      'experimental' => [
+        'experimental',
+        'experimental',
+      ],
+      'normal' => [
+        'normal',
+        'normal',
+      ],
+      'deprecated' => [
+        'deprecated',
+        'deprecated',
+      ],
+      'obsolete' => [
+        'obsolete',
+        'obsolete',
+      ],
+    ];
+  }
+
+  /**
+   * Tests an info file with invalid status values.
+   *
+   * @covers ::parse
+   *
+   * @dataProvider providerInvalidStatus
+   */
+  public function testInvalidStatus($status, $exception_message) {
+    $info = <<<INFO
+package: Core
+core: 8.x
+version: VERSION
+type: module
+name: Module for That
+INFO;
+    $info .= "\nstatus: $status\n";
+    vfsStream::setup('modules');
+    $filename = "status-$status.info.txt";
+    vfsStream::create([
+      'fixtures' => [
+        $filename => $info,
+      ],
+    ]);
+    $this->expectException('\Drupal\Core\Extension\InfoParserException');
+    $this->expectExceptionMessage($exception_message);
+    $info_values = $this->infoParser->parse(vfsStream::url("modules/fixtures/$filename"));
+    $this->assertEmpty($info_values);
+  }
+
+  /**
+   * Data provider for testInvalidStatus().
+   */
+  public function providerInvalidStatus() {
+    return [
+      'bogus' => [
+        'bogus',
+        "'status: bogus' is not valid",
+      ],
+      'two words' => [
+        'deprecated obsolete',
+        "'status: deprecated obsolete' is not valid",
+      ],
+      'wrong case' => [
+        'Experimental',
+        "'status: Experimental' is not valid",
+      ],
+    ];
+  }
+
 }