diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8d11c01243c..c33f6c70c88 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,10 @@
 ### Language
 * Allow using URI strings in `part of` declarations to refer to the
   importing library.
+  A library part now can declare its library either as:
+  `part of name.of.library;` or as `part of "uriReferenceOfLibrary.dart";`.
+  This allows libraries with no library declarations (and therefore no name)
+  to have parts, and it allows tools to easily find the library of a part file.
 
 ### Core library changes