diff --git a/typo3/sysext/backend/Classes/Utility/BackendUtility.php b/typo3/sysext/backend/Classes/Utility/BackendUtility.php
index 507691df518bf6e2c6906dcd37443827dbd82ae9..4a4cd169c12ac53aafc539b3d073f9d6b0146950 100755
--- a/typo3/sysext/backend/Classes/Utility/BackendUtility.php
+++ b/typo3/sysext/backend/Classes/Utility/BackendUtility.php
@@ -231,9 +231,11 @@ class BackendUtility
      * @param string $tablename Table name from which ids is returned
      * @param string $default_tablename $default_tablename denotes what table the number '45' is from (if nothing is prepended on the value)
      * @return string List of ids
+     * @deprecated since TYPO3 CMS 8, will be removed in TYPO3 CMS 9.
      */
     public static function getSQLselectableList($in_list, $tablename, $default_tablename)
     {
+        GeneralUtility::logDeprecatedFunction();
         $list = array();
         if ((string)trim($in_list) != '') {
             $tempItemArray = explode(',', trim($in_list));
@@ -1347,9 +1349,11 @@ class BackendUtility
      *
      * @param string $content Value for 'alt' and 'title' attributes (will be htmlspecialchars()'ed before output)
      * @return string
+     * @deprecated since TYPO3 CMS 8, will be removed in TYPO3 CMS 9.
      */
     public static function titleAltAttrib($content)
     {
+        GeneralUtility::logDeprecatedFunction();
         $out = '';
         $out .= ' alt="' . htmlspecialchars($content) . '"';
         $out .= ' title="' . htmlspecialchars($content) . '"';
@@ -2362,9 +2366,11 @@ class BackendUtility
      * @param array $defaults Defaults
      * @param string $dataPrefix Prefix for formfields
      * @return string HTML for a form.
+     * @deprecated since TYPO3 CMS 8, will be removed in TYPO3 CMS 9.
      */
     public static function makeConfigForm($configArray, $defaults, $dataPrefix)
     {
+        GeneralUtility::logDeprecatedFunction();
         $params = $defaults;
         $lines = array();
         if (is_array($configArray)) {
@@ -4167,9 +4173,11 @@ class BackendUtility
      *
      * @param string $params String of parameters on multiple lines to parse into key-value pairs (see function description)
      * @return array
+     * @deprecated since TYPO3 CMS 8, will be removed in TYPO3 CMS 9.
      */
     public static function processParams($params)
     {
+        GeneralUtility::logDeprecatedFunction();
         $paramArr = array();
         $lines = explode(LF, $params);
         foreach ($lines as $val) {
diff --git a/typo3/sysext/core/Documentation/Changelog/master/Deprecation-72851-DeprecateSomeFunctionsNotInUseAnymoreInTheCore.rst b/typo3/sysext/core/Documentation/Changelog/master/Deprecation-72851-DeprecateSomeFunctionsNotInUseAnymoreInTheCore.rst
new file mode 100644
index 0000000000000000000000000000000000000000..315d143a15990c2bcc3326b6f174f0c48e850c7a
--- /dev/null
+++ b/typo3/sysext/core/Documentation/Changelog/master/Deprecation-72851-DeprecateSomeFunctionsNotInUseAnymoreInTheCore.rst
@@ -0,0 +1,26 @@
+=============================================================================
+Deprecation: #72851 - Deprecate some functions not in use anymore in the core
+=============================================================================
+
+Description
+===========
+
+Deprecate some unused methods:
+
+``BackendUtility::processParams()``
+``BackendUtility::makeConfigForm()``
+``BackendUtility::titleAltAttrib()``
+``BackendUtility::getSQLselectableList()``
+``ContentObjectRenderer->processParams()``
+
+
+Impact
+======
+
+Calling one of the aforementioned methods will write an entry in the deprecation log.
+
+
+Affected Installations
+======================
+
+Instances with custom backend modules that use one of the aforementioned methods.
\ No newline at end of file
diff --git a/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php b/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php
index ef2b26ed60abbde7af4e1109f2bc1ec59fa871d1..98bdea5ce37a54a86d7987cb0df8b3bb2c139502 100644
--- a/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php
+++ b/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php
@@ -6723,9 +6723,11 @@ class ContentObjectRenderer
      *
      * @param string $params Text which the parameters
      * @return array array with the parameters as key/value pairs
+     * @deprecated since TYPO3 CMS 8, will be removed in TYPO3 CMS 9.
      */
     public function processParams($params)
     {
+        GeneralUtility::logDeprecatedFunction();
         $paramArr = array();
         $lines = GeneralUtility::trimExplode(LF, $params, true);
         foreach ($lines as $val) {