news: Declare change to asyncmap exception handling

richiejp · richiejp · commit 43d58b976ec3 · 2019-08-27T18:19:25.000+02:00
diff --git a/NEWS.md b/NEWS.md
@@ -26,6 +26,8 @@ New library functions
 Standard library changes
 ------------------------
 
+* `asyncmap` now preserves the backtrace of inner exceptions by wrapping them
+  in `TaskFailedException` and `CompositeException` ([#32749])
 
 #### Libdl
 
