diff --git a/typo3/sysext/core/Documentation/Changelog/master/Deprecation-71917-DeprecateTheArgumentHscForGetLLGetLLLAndSL.rst b/typo3/sysext/core/Documentation/Changelog/master/Deprecation-71917-DeprecateTheArgumentHscForGetLLGetLLLAndSL.rst
new file mode 100644
index 0000000000000000000000000000000000000000..29d87f4c546a3b9e9df77dd53f83b80c3ca11c58
--- /dev/null
+++ b/typo3/sysext/core/Documentation/Changelog/master/Deprecation-71917-DeprecateTheArgumentHscForGetLLGetLLLAndSL.rst
@@ -0,0 +1,30 @@
+===========================================================================
+Deprecation: #71917 - Deprecate the argument 'hsc' for getLL, getLLL and sL
+===========================================================================
+
+Description
+===========
+
+The parameter :php:`$hsc` within the following methods of :php:`TYPO3\CMS\Lang\LanguageService` has been marked as deprecated:
+
+* :php:`getLL()`
+* :php:`getLLL()`
+* :php:`sL()`
+
+
+Impact
+======
+
+Directly or indirectly using any of the methods :php:`getLL()`, :php:`getLLL()` or :php:`sL()` with the parameter :php:`$hsc` will trigger a deprecation log entry.
+
+
+Affected Installations
+======================
+
+Any installation with a third-party extension calling one of the methods in its PHP code.
+
+
+Migration
+=========
+
+If the return value of these methods is output in HTML context use :php:`htmlspecialchars` directly to properly escape the content.
\ No newline at end of file
diff --git a/typo3/sysext/lang/Classes/LanguageService.php b/typo3/sysext/lang/Classes/LanguageService.php
index c32fc5dcaf68659100000b35fd6aeb655e2c01bb..3c71765f2b46e64c1834a298fcd39bcb6d984fd5 100755
--- a/typo3/sysext/lang/Classes/LanguageService.php
+++ b/typo3/sysext/lang/Classes/LanguageService.php
@@ -214,7 +214,7 @@ class LanguageService
      * Mostly used from modules with only one LOCAL_LANG file loaded into the global space.
      *
      * @param string $index Label key
-     * @param bool $hsc If set, the return value is htmlspecialchar'ed
+     * @param bool $hsc DEPRECATED If set, the return value is htmlspecialchar'ed
      * @return string
      */
     public function getLL($index, $hsc = false)
@@ -227,11 +227,18 @@ class LanguageService
      *
      * @param string $index Label key
      * @param array $localLanguage $LOCAL_LANG array to get label key from
-     * @param bool $hsc If set, the return value is htmlspecialchar'ed
+     * @param bool $hsc DEPRECATED If set, the return value is htmlspecialchar'ed
      * @return string
      */
     public function getLLL($index, $localLanguage, $hsc = false)
     {
+        // @deprecated since TYPO3 v8, will be removed in TYPO3 v9
+        if ($hsc) {
+            GeneralUtility::deprecationLog(
+                'Calling getLLL() with argument \'hsc\' has been deprecated.'
+            );
+        }
+
         // Get Local Language. Special handling for all extensions that
         // read PHP LL files and pass arrays here directly.
         if (isset($localLanguage[$this->lang][$index])) {
@@ -259,11 +266,18 @@ class LanguageService
      * Refer to 'Inside TYPO3' for more details
      *
      * @param string $input Label key/reference
-     * @param bool $hsc If set, the return value is htmlspecialchar'ed
+     * @param bool $hsc DEPRECATED If set, the return value is htmlspecialchar'ed
      * @return string
      */
     public function sL($input, $hsc = false)
     {
+        // @deprecated since TYPO3 v8, will be removed in TYPO3 v9
+        if ($hsc) {
+            GeneralUtility::deprecationLog(
+                'Calling sL() with argument \'hsc\' has been deprecated.'
+            );
+        }
+
         $identifier = $input . '_' . (int)$hsc . '_' . (int)$this->debugKey;
         if (isset($this->LL_labels_cache[$this->lang][$identifier])) {
             return $this->LL_labels_cache[$this->lang][$identifier];