Update CHANGELOG.md for v1.3.0-beta.2.

CHANGELOG.md

 <!-- BEGIN MUNGE: GENERATED_TOC -->
 
+- [v1.3.0-beta.2](#v130-beta2)
+  - [Downloads](#downloads)
+  - [Changes since v1.3.0-beta.1](#changes-since-v130-beta1)
+    - [Experimental Features](#experimental-features)
+    - [Other notable changes](#other-notable-changes)
 - [v1.3.0-beta.1](#v130-beta1)
   - [Downloads](#downloads)
   - [Changes since v1.3.0-alpha.5](#changes-since-v130-alpha5)
@@ -66,6 +71,50 @@
 <!-- NEW RELEASE NOTES ENTRY -->
 
 
+# v1.3.0-beta.2
+
+[Documentation](http://kubernetes.github.io) & [Examples](http://releases.k8s.io/release-1.3/examples)
+
+## Downloads
+
+binary | sha1 hash | md5 hash
+------ | --------- | --------
+[kubernetes.tar.gz](https://storage.googleapis.com/kubernetes-release/release/v1.3.0-beta.2/kubernetes.tar.gz) | `9c95762970b943d6c6547f0841c1e5471148b0e3` | `dc9e8560f24459b2313317b15910bee7`
+
+## Changes since v1.3.0-beta.1
+
+### Experimental Features
+
+* Proposal for implementing init containers ([#23666](https://github.com/kubernetes/kubernetes/pull/23666), [@smarterclayton](https://github.com/smarterclayton))
+
+### Other notable changes
+
+* GCE provider: Limit Filter calls to regexps rather than insane blobs ([#27741](https://github.com/kubernetes/kubernetes/pull/27741), [@zmerlynn](https://github.com/zmerlynn))
+* swap FIRSTSEEN/LASTSEEN columns in `kubectl get event -w` ([#27549](https://github.com/kubernetes/kubernetes/pull/27549), [@therc](https://github.com/therc))
+* GCI: fix kubectl permission issue [#27643](https://github.com/kubernetes/kubernetes/pull/27643) ([#27740](https://github.com/kubernetes/kubernetes/pull/27740), [@andyzheng0831](https://github.com/andyzheng0831))
+* Add federation api and cm servers to hyperkube ([#27586](https://github.com/kubernetes/kubernetes/pull/27586), [@colhom](https://github.com/colhom))
+* federation: Creating kubeconfig files to be used for creating secrets for clusters on aws and gke ([#27332](https://github.com/kubernetes/kubernetes/pull/27332), [@nikhiljindal](https://github.com/nikhiljindal))
+* AWS: Enable ICMP Type 3 Code 4 for ELBs ([#27677](https://github.com/kubernetes/kubernetes/pull/27677), [@justinsb](https://github.com/justinsb))
+* Bumped Heapster to v1.1.0 ([#27542](https://github.com/kubernetes/kubernetes/pull/27542), [@piosz](https://github.com/piosz))
+* Deleting federation-push.sh ([#27400](https://github.com/kubernetes/kubernetes/pull/27400), [@nikhiljindal](https://github.com/nikhiljindal))
+* Validate-cluster finishes shortly after at most ALLOWED_NOTREADY_NODE… ([#26778](https://github.com/kubernetes/kubernetes/pull/26778), [@gmarek](https://github.com/gmarek))
+* AWS kube-down: Issue warning if VPC not found ([#27518](https://github.com/kubernetes/kubernetes/pull/27518), [@justinsb](https://github.com/justinsb))
+* gce/kube-down: Parallelize IGM deletion, batch more ([#27302](https://github.com/kubernetes/kubernetes/pull/27302), [@zmerlynn](https://github.com/zmerlynn))
+* Enable dynamic allocation of heapster/eventer cpu request/limit ([#27185](https://github.com/kubernetes/kubernetes/pull/27185), [@gmarek](https://github.com/gmarek))
+* 'kubectl describe pv' now shows events ([#27431](https://github.com/kubernetes/kubernetes/pull/27431), [@jsafrane](https://github.com/jsafrane))
+* AWS kube-up: set net.ipv4.neigh.default.gc_thresh1=0 to avoid ARP over-caching ([#27682](https://github.com/kubernetes/kubernetes/pull/27682), [@justinsb](https://github.com/justinsb))
+* AWS volumes: Use /dev/xvdXX names with EC2 ([#27628](https://github.com/kubernetes/kubernetes/pull/27628), [@justinsb](https://github.com/justinsb))
+* Prep for continuous Docker validation test ([#26813](https://github.com/kubernetes/kubernetes/pull/26813), [@wonderfly](https://github.com/wonderfly))
+* Bump cAdvisor to v0.23.4 ([#27591](https://github.com/kubernetes/kubernetes/pull/27591), [@dchen1107](https://github.com/dchen1107))
+* Change default value of deleting-pods-burst to 1 ([#27606](https://github.com/kubernetes/kubernetes/pull/27606), [@gmarek](https://github.com/gmarek))
+* MESOS: fix race condition in contrib/mesos/pkg/queue/delay ([#24916](https://github.com/kubernetes/kubernetes/pull/24916), [@jdef](https://github.com/jdef))
+* including federation binaries in the list of images we push during release ([#27396](https://github.com/kubernetes/kubernetes/pull/27396), [@nikhiljindal](https://github.com/nikhiljindal))
+* fix updatePod() of RS and RC controllers ([#27415](https://github.com/kubernetes/kubernetes/pull/27415), [@caesarxuchao](https://github.com/caesarxuchao))
+* Change default value of deleting-pods-burst to 1 ([#27422](https://github.com/kubernetes/kubernetes/pull/27422), [@gmarek](https://github.com/gmarek))
+* Kubelet Volume Attach/Detach/Mount/Unmount Redesign ([#26801](https://github.com/kubernetes/kubernetes/pull/26801), [@saad-ali](https://github.com/saad-ali))
+
+
+
 # v1.3.0-beta.1
 
 [Documentation](http://kubernetes.github.io) & [Examples](http://releases.k8s.io/release-1.3/examples)