diff --git a/release_notes/5.10.0.md b/release_notes/5.10.0.md
index 7fa43864..568e59b4 100644
--- a/release_notes/5.10.0.md
+++ b/release_notes/5.10.0.md
@@ -2,7 +2,8 @@
 
 ## New Features
 
-* Optionally detect late promise rejections and don't report them as errors
+* Optionally detect promise rejections that are handled after an initial
+  unhandled promise rejection event and don't report them as errors.
   This is off by default because it comes with a performance cost. It can be
   enabled by setting the `detectLateRejectionHandling` config property to true.
 * Add `getSpecProperty` to retrieve data that was set with `setSpecProperty`.