update changes

bobzhang · bobzhang · commit 565fbe27a07e · 2021-03-11T13:15:43.000+08:00
diff --git a/Changes.md b/Changes.md
@@ -1,5 +1,16 @@
 `*` means  potential break changes
 
+# 9.0.1
+
+- #4990 Fix an optimization bug introduced in 9.0
+
+- #4982 pattern match over modules
+
+Provide user with a sugar to pattern match over modules:
+
+```res
+let {length, cons} = module(List)
+```
 
 # 9.0
 
