diff --git a/CHANGELOG.md b/CHANGELOG.md
index 92e71e3..4d7b99c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,14 @@
 
 ### Version history
 
+##### 1.2.0
+- Now `-err2-ret-trace` and `err2.SetErrRetTracer` gives us *error return traces*
+  which are even more readable than `-err2-trace`, `err2.SetErrorTracer` with
+  long error return traces
+- A new automatic error formatter/generator added for `TryCopyFile` convention
+- New features for `sample/` to demonstrate latest features
+- Extended documentation
+
 ##### 1.1.0
 - `assert` package:
     - bug fix: call stack traversal during unit testing in some situations
diff --git a/README.md b/README.md
index 628b141..5ca3d97 100644
--- a/README.md
+++ b/README.md
@@ -623,10 +623,6 @@ Please see the full version history from [CHANGELOG](./CHANGELOG.md).
 
 ### Latest Release
 
-##### 1.2.0
-- Now `-err2-ret-trace` and `err2.SetErrRetTracer` gives us *error return traces*
-  which are even more readable than `-err2-trace`, `err2.SetErrorTracer` with
-  long error return traces
-- A new automatic error formatter/generator added for `TryCopyFile` convention
-- New features for `sample/` to demonstrate latest features
-- Extended documentation
+##### 1.2.1
+- Refactoring & optimization
+- Updated documentation