Add changelog entry for PR #2502
diff --git a/system/libraries/Profiler.php b/system/libraries/Profiler.php
index 62830fe..0c60efb 100644
--- a/system/libraries/Profiler.php
+++ b/system/libraries/Profiler.php
@@ -554,4 +554,4 @@
 }
 
 /* End of file Profiler.php */
-/* Location: ./system/libraries/Profiler.php */
+/* Location: ./system/libraries/Profiler.php */
\ No newline at end of file
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 38021ee..369f405 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -339,6 +339,7 @@
 
       -  Database object names are now being displayed.
       -  The sum of all queries running times in seconds is now being displayed.
+      -  Added support for displaying the HTTP DNT ("Do Not Track") header.
 
    -  :doc:`Migration Library <libraries/migration>` changes include: