diff --git a/core/lib/Drupal/Core/Render/Element/HtmlTag.php b/core/lib/Drupal/Core/Render/Element/HtmlTag.php
index 12c0edfa62..51f53ce129 100644
--- a/core/lib/Drupal/Core/Render/Element/HtmlTag.php
+++ b/core/lib/Drupal/Core/Render/Element/HtmlTag.php
@@ -112,6 +112,9 @@ public static function preRenderHtmlTag($element) {
   /**
    * Pre-render callback: Renders #browsers into #prefix and #suffix.
    *
+   * @deprecated is deprecated in drupal:8.8.1 and is removed from drupal:9.0.0.
+   * @see https://www.drupal.org/project/drupal/issues/3095113
+   *
    * @param array $element
    *   A render array with a '#browsers' property. The '#browsers' property can
    *   contain any or all of the following keys:
@@ -150,6 +153,8 @@ public static function preRenderConditionalComments($element) {
       return $element;
     }
 
+    @trigger_error('Support for IE Conditional Comments is deprecated in drupal:8.8.1 and is removed from drupal:9.0.0. See https://www.drupal.org/project/drupal/issues/3095113', E_USER_DEPRECATED);
+
     // Determine the conditional comment expression for Internet Explorer to
     // evaluate.
     if ($browsers['IE'] === TRUE) {
diff --git a/core/tests/Drupal/Tests/Listeners/DeprecationListenerTrait.php b/core/tests/Drupal/Tests/Listeners/DeprecationListenerTrait.php
index 1290a99321..576d89e2f8 100644
--- a/core/tests/Drupal/Tests/Listeners/DeprecationListenerTrait.php
+++ b/core/tests/Drupal/Tests/Listeners/DeprecationListenerTrait.php
@@ -146,6 +146,7 @@ public static function getSkippedDeprecations() {
       'The "core/classList" asset library is deprecated in drupal:8.8.0 and is removed from drupal:9.0.0. Use the the native browser implementation instead. See https://www.drupal.org/node/3089511',
       'The "core/jquery.ui.datepicker" asset library is deprecated in drupal:8.8.0 and is removed from drupal:9.0.0. See https://www.drupal.org/node/3081864',
       'The "locale/drupal.locale.datepicker" asset library is deprecated in drupal:8.8.0 and is removed from drupal:9.0.0. See https://www.drupal.org/node/3081864',
+      'Support for IE Conditional Comments is deprecated in drupal:8.8.1 and is removed from drupal:9.0.0. See https://www.drupal.org/project/drupal/issues/3095113',
     ];
   }