diff --git a/clang-tools-extra/clang-tidy/ClangTidyOptions.cpp b/clang-tools-extra/clang-tidy/ClangTidyOptions.cpp
--- a/clang-tools-extra/clang-tidy/ClangTidyOptions.cpp
+++ b/clang-tools-extra/clang-tidy/ClangTidyOptions.cpp
@@ -124,7 +124,7 @@
     IO.mapOptional("Checks", Options.Checks);
     IO.mapOptional("WarningsAsErrors", Options.WarningsAsErrors);
     IO.mapOptional("HeaderFilterRegex", Options.HeaderFilterRegex);
-    IO.mapOptional("AnalyzeTemporaryDtors", Ignored); // legacy compatibility
+    IO.mapOptional("AnalyzeTemporaryDtors", Ignored); // deprecated
     IO.mapOptional("FormatStyle", Options.FormatStyle);
     IO.mapOptional("User", Options.User);
     IO.mapOptional("CheckOptions", Options.CheckOptions);
diff --git a/clang-tools-extra/docs/ReleaseNotes.rst b/clang-tools-extra/docs/ReleaseNotes.rst
--- a/clang-tools-extra/docs/ReleaseNotes.rst
+++ b/clang-tools-extra/docs/ReleaseNotes.rst
@@ -102,6 +102,9 @@
 - Fix a minor bug in `add_new_check.py` to only traverse subdirectories
   when updating the list of checks in the documentation.
 
+- Deprecate the global configuration file option `AnalyzeTemporaryDtors`,
+  which is no longer in use. The option will be fully removed in clang-tidy 18.
+
 New checks
 ^^^^^^^^^^