diff --git a/core/modules/ckeditor5/ckeditor5.module b/core/modules/ckeditor5/ckeditor5.module
index c292f015129..b968d9c8675 100644
--- a/core/modules/ckeditor5/ckeditor5.module
+++ b/core/modules/ckeditor5/ckeditor5.module
@@ -50,10 +50,8 @@ function ckeditor5_help($route_name, RouteMatchInterface $route_match) {
       $output .= '<dt>' . t('Generating accessible content') . '</dt>';
       $output .= '<dd>';
       $output .= '<ul>';
-      // @todo Uncomment this in https://www.drupal.org/project/ckeditor5/issues/3230230
-      // $output .= '<li>' . t('HTML tables can be created with table headers and caption/summary elements.') . '</li>';
-      // @todo Uncomment this in https://www.drupal.org/project/ckeditor5/issues/3222757
-      // $output .= '<li>' . t('Alt text is required by default on images added through CKEditor (note that this can be overridden).') . '</li>';
+      $output .= '<li>' . t('HTML tables can be created with table headers and caption/summary elements.') . '</li>';
+      $output .= '<li>' . t('Alt text is required by default on images added through CKEditor (note that this can be overridden).') . '</li>';
       $output .= '<li>' . t('Semantic HTML5 figure/figcaption are available to add captions to images.') . '</li>';
       $output .= '<li>' . t('To support multilingual page content, CKEditor 5 can be configured to include a language button in the toolbar.') . '</li>';
       $output .= '</ul>';
diff --git a/core/modules/ckeditor5/js/ckeditor5_plugins/drupalMedia/src/drupallinkmedia/drupallinkmediaediting.js b/core/modules/ckeditor5/js/ckeditor5_plugins/drupalMedia/src/drupallinkmedia/drupallinkmediaediting.js
index 04432fe8603..658e6ee66b9 100644
--- a/core/modules/ckeditor5/js/ckeditor5_plugins/drupalMedia/src/drupallinkmedia/drupallinkmediaediting.js
+++ b/core/modules/ckeditor5/js/ckeditor5_plugins/drupalMedia/src/drupallinkmedia/drupallinkmediaediting.js
@@ -160,7 +160,7 @@ function editingDowncastMediaLink() {
             // element which makes caused re-render of the media preview, making
             // the media preview flicker once when media is unlinked.
             // @todo ensure that this doesn't cause flickering after
-            //   https://www.drupal.org/i/3246380 has been addressed.
+            //   https://www.drupal.org/i/3304834 has been addressed.
             writer.move(
               writer.createRangeIn(linkInMedia),
               writer.createPositionAt(mediaContainer, 0),
diff --git a/core/modules/ckeditor5/src/SmartDefaultSettings.php b/core/modules/ckeditor5/src/SmartDefaultSettings.php
index f4fc33d0c38..e8bf8fa8309 100644
--- a/core/modules/ckeditor5/src/SmartDefaultSettings.php
+++ b/core/modules/ckeditor5/src/SmartDefaultSettings.php
@@ -122,7 +122,7 @@ final class SmartDefaultSettings {
       // Overwrite the Editor config entity object's $filterFormat property, to
       // prevent calls to Editor::hasAssociatedFilterFormat() and
       // Editor::getFilterFormat() from loading the FilterFormat from storage.
-      // @todo Remove in https://www.drupal.org/project/ckeditor5/issues/3218985.
+      // @todo Remove in https://www.drupal.org/project/ckeditor5/issues/3231347.
       $reflector = new \ReflectionObject($text_editor);
       $property = $reflector->getProperty('filterFormat');
       $property->setAccessible(TRUE);
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaTest.php
index d9b54fb41f7..6582a2e19bc 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaTest.php
@@ -737,16 +737,14 @@ class MediaTest extends WebDriverTestBase {
 
     // Test that setting alt value to two double quotes will signal to the
     // MediaEmbed filter to unset the attribute on the media image field.
-    // We intentionally add a space space after the two double quotes to test
-    // the string is trimmed to two quotes.
+    // We intentionally add a space after the two double quotes to test that the
+    // string is trimmed to two quotes.
     $alt_override_input->setValue('"" ');
     $this->getBalloonButton('Save')->click();
     // Verify that the two double quote empty alt indicator ('""') set in
-    // the dialog has successfully resulted in a media image field with the
-    // alt attribute present but without a value.
-    // @todo Uncomment this in https://www.drupal.org/project/ckeditor5/issues/3206522.
-    // @codingStandardsIgnoreLine
-//    $this->assertNotEmpty($assert_session->waitForElementVisible('css', 'drupal-media img[alt=""]'));
+    // the alt text form balloon has successfully resulted in a media image
+    // field with the alt attribute present but without a value.
+    $this->assertNotEmpty($assert_session->waitForElementVisible('css', '[data-media-embed-test-view-mode] img[alt=""]'));
 
     // Test that the downcast drupal-media element's alt attribute now has the
     // empty string indicator.
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/SourceEditingTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/SourceEditingTest.php
index db3d25864ed..d93a756d6d3 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/SourceEditingTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/SourceEditingTest.php
@@ -320,7 +320,7 @@ JS;
       ],
 
       // Edge case: `style`.
-      // @todo https://www.drupal.org/project/drupal/issues/3260857
+      // @todo https://www.drupal.org/project/drupal/issues/3304832
 
       // Edge case: `type` attribute on lists.
       // @todo Remove in https://www.drupal.org/project/drupal/issues/3274635.
diff --git a/core/modules/ckeditor5/tests/src/Kernel/SmartDefaultSettingsTest.php b/core/modules/ckeditor5/tests/src/Kernel/SmartDefaultSettingsTest.php
index 8557a5d25df..5a3ec0bd614 100644
--- a/core/modules/ckeditor5/tests/src/Kernel/SmartDefaultSettingsTest.php
+++ b/core/modules/ckeditor5/tests/src/Kernel/SmartDefaultSettingsTest.php
@@ -74,8 +74,6 @@ class SmartDefaultSettingsTest extends KernelTestBase {
     'media',
     'media_library',
     'views',
-    // @todo Remove in https://www.drupal.org/project/drupal/issues/3263384
-    'ckeditor5_plugin_conditions_test',
     'dblog',
     'help',
   ];
diff --git a/core/modules/ckeditor5/tests/src/Unit/HTMLRestrictionsTest.php b/core/modules/ckeditor5/tests/src/Unit/HTMLRestrictionsTest.php
index 41179261df8..2dea410170a 100644
--- a/core/modules/ckeditor5/tests/src/Unit/HTMLRestrictionsTest.php
+++ b/core/modules/ckeditor5/tests/src/Unit/HTMLRestrictionsTest.php
@@ -125,8 +125,6 @@ class HTMLRestrictionsTest extends UnitTestCase {
       ['*' => ['foo' => ['a' => TRUE, 'b' => TRUE]]],
       NULL,
     ];
-    // @todo Nothing in Drupal core uses this ability, and no custom/contrib
-    //   module is known to use this. Therefore this is left for the future.
     yield 'VALID BUT NOT YET SUPPORTED: global attribute tag with attribute allowed, specific attribute values forbidden' => [
       ['*' => ['foo' => ['a' => FALSE, 'b' => FALSE]]],
       'The "*" HTML tag has attribute restriction "foo", but it is not an array of key-value pairs, with HTML tag attribute values as keys and TRUE as values.',