diff --git a/CHANGELOG.md b/CHANGELOG.md
index ea49820131..22c32f51ae 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,19 @@ Chrono obeys the principle of [Semantic Versioning](http://semver.org/).
 There were/are numerous minor versions before 1.0 due to the language changes.
 Versions with only mechnical changes will be omitted from the following list.
 
+## 0.2.13 (2015-04-29)
+
+### Added
+
+- The optional dependency on `rustc_serialize` and
+  relevant `Rustc{En,De}codable` implementations for supported types has been added.
+  This is enabled by the `rustc-serialize` Cargo feature. (#34)
+
+### Changed
+
+- `chrono::Duration` reexport is changed to that of crates.io `time` crate.
+  This enables Rust 1.0 beta compatibility.
+
 ## 0.2.4 (2015-03-03)
 
 ### Fixed
diff --git a/Cargo.toml b/Cargo.toml
index 926a1c5b3a..ac5c4eeb01 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "chrono"
-version = "0.2.12"
+version = "0.2.13"
 authors = ["Kang Seonghoon <public+rust@mearie.org>"]
 
 description = "Date and time library for Rust"
@@ -18,3 +18,4 @@ name = "chrono"
 time = "*"
 num = "*"
 rustc-serialize = { version = "0.3", optional = true }
+
diff --git a/README.md b/README.md
index 566fd2176e..3680bd687b 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-[Chrono][doc] 0.2.12
+[Chrono][doc] 0.2.13
 ====================
 
 [![Chrono on Travis CI][travis-image]][travis]
@@ -34,7 +34,14 @@ Put this in your `Cargo.toml`:
 chrono = "0.2"
 ```
 
-And this in your crate root:
+Or in the case you are using Rust 1.0 beta, pin the exact version:
+
+```toml
+[dependencies]
+chrono = "=0.2.13"
+```
+
+And put this in your crate root:
 
 ```rust
 extern crate chrono;
diff --git a/src/lib.rs b/src/lib.rs
index ab4c4448a4..8f4a81bda0 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -4,7 +4,7 @@
 
 /*!
 
-# Chrono 0.2.12
+# Chrono 0.2.13
 
 Date and time handling for Rust. (also known as `rust-chrono`)
 It aims to be a feature-complete superset of the [time](https://github.com/rust-lang/time) library.
@@ -30,7 +30,14 @@ Put this in your `Cargo.toml`:
 chrono = "0.2"
 ```
 
-And this in your crate root:
+Or in the case you are using Rust 1.0 beta, pin the exact version:
+
+```toml
+[dependencies]
+chrono = "=0.2.13"
+```
+
+And put this in your crate root:
 
 ```rust
 extern crate chrono;