diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3eb63bd..bfa5805 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,15 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
-## TODO
+> TODO
+
+## 0.1.0 (2018-07-24)
+
+First beta version.
+
+## Add
+
+Provides methods:
 
 - [x] to_int8
 - [x] to_int16
@@ -16,6 +24,17 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - [x] to_float32
 - [x] to_float64
 - [x] to_bool
-- [x] to_time
+- [x] to_time(location : Time::Location? = nil, formatters : Array(String)? = nil)
+
+Monkey Patching list:
+
+- String
+- Int8/Int16/Int32/Int64
+- Float32/Float64
+- Bool
+- Time
+- JSON::Any
+- YAML::Any
 
-[Unreleased]: https://github.com/icyleaf/popcorn/compare/25a00baffd41f4ac8a071330038916375904b46d...HEAD
+[Unreleased]: https://github.com/icyleaf/popcorn/compare/v0.1.0...HEAD
+[0.1.0]: https://github.com/icyleaf/popcorn/compare/25a00baffd41f4ac8a071330038916375904b46d...v0.1.0
diff --git a/README.md b/README.md
index b0d3eee..4270d6d 100644
--- a/README.md
+++ b/README.md
@@ -23,12 +23,13 @@ Popcorn is easy and safe from one type to another tool.
 Popcorn proviedes a handful of `to_xxx`/`to_xxx?` methods and `xxx` is full type name,
 This is distinguish between built-in methods in Crystal.
 
+- to_int16
 - to_int
 - to_int64
 - to_float32
-- to_float
+- to_float64
 - to_bool
-- to_time
+- to_time(location : Time::Location? = nil, formatters : Array(String)? = nil)
 - to_string (alias to to_s in Crystal).
 
 ```crystal
@@ -46,7 +47,15 @@ Popcorn.to_time("2018-07-23T10:11:22Z", Time::Location.load("Asia/Shanghai")) #
 Popcorn.to_time("Tue, 20 Jan 2018", formatter: ["%a, %d %b %Y"])              # => Time.new(2018, 7, 23, 10, 11, 22, location: Time::Location::UTC)
 ```
 
-Also these methods had been inject to Crystal literals, you can call it directly, such like:
+Also these methods had been inject to Crystal literals, you can call it directly, Monkey Patching list:
+
+- String
+- Int8/Int16/Int32/Int64
+- Float32/Float64
+- Bool
+- Time
+- JSON::Any
+- YAML::Any
 
 ```crystal
 require "popcorn"