Update changelog with patch release notes

CHANGELOG.md

Index: CHANGELOG.md
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7ee438c47aa53cd12d146179689d9736b2984d53..a2f9c33a76290569df3500598bf9ea1d4f70ca81 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@
 * `dart:async`
   * Added `Future.any` static method.
   * Added `Stream.fromFutures` constructor.
-  
+
 * `dart:convert`
   * `Base64Decoder.convert` now takes optional `start` and `end` parameters.
 
@@ -68,6 +68,28 @@
   * Fixed a crashing bug when a pubspec contains a dependency without a source
     declared.
 
+## 1.13.2 - 2016-01-06
+
+Patch release, resolves one issues:
+
+* dart2js: Stack traces are not captured correctly (SDK issue [25235]
+(https://github.com/dart-lang/sdk/issues/25235))
+
+## 1.13.1 - 2015-12-17
+
+Patch release, resolves three issues:
+
+* VM type propagation fix: Resolves a potential crash in the Dart VM (SDK commit
+ [dff13be]
+(https://github.com/dart-lang/sdk/commit/dff13bef8de104d33b04820136da2d80f3c835d7))
+
+* dart2js crash fix: Resolves a crash in pkg/js and dart2js (SDK issue [24974]
+(https://github.com/dart-lang/sdk/issues/24974))
+
+* Pub get crash on ARM: Fixes a crash triggered when running 'pub get' on ARM
+ processors such as those on a Raspberry Pi (SDK issue [24855]
+(https://github.com/dart-lang/sdk/issues/24855))
+
 ## 1.13.0 - 2015-11-18
 
 ### Core library changes