diff --git a/NEWS.md b/NEWS.md
index d9f1be5c8e680..476daa617d4d9 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -65,6 +65,7 @@ Standard library changes
     multiple processes ([#29969]).
   * `Base.julia_cmd` now propagates the `--inline=(yes|no)` flag ([#29858]).
   * New `DateTime(::Date, ::Time)` constructor ([#29754]).
+  * `isdiag` and `isposdef` for `Diagonal` and `UniformScaling` ([#29638]).
 
 Compiler/Runtime improvements
 -----------------------------