1 files changed, 6 insertions, 0 deletions
diff --git a/NEWS.md b/NEWS.md
index 305231e542..6ccfd90971 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -171,6 +171,12 @@ Outstanding ones only.
 
     * Replace copy coroutine with pthread implementation. [[Feature #18015]]
 
+* Refinement
+
+    * New class which represents a module created by Module#refine.
+      `include` and `prepend` are deprecated, and `import_methods` is added
+      instead. [[Bug #17429]]
+
 ## Stdlib updates
 
 * The following default gem are updated.