add changelog v0.4.0

Signed-off-by: liheng.zms <liheng.zms@alibaba-inc.com>

CHANGELOG.md

@@ -1,5 +1,20 @@
 # Change Log
 
+## v0.4.0
+### Kruise-Rollout-Controller
+- Rollout Support Kruise Advanced DaemonSet. ([#134](https://github.com/openkruise/rollouts/pull/134), [@Yadan-Wei](https://github.com/Yadan-Wei))
+- Rollout support end-to-end canary deployment. ([#153](https://github.com/openkruise/rollouts/pull/153), [@zmberg](https://github.com/zmberg))
+- Rollout trafficTouting support requestHeaderModifier. ([#156](https://github.com/openkruise/rollouts/pull/156), [@zmberg](https://github.com/zmberg))
+- Rollout support disabled for a rollout. ([#155](https://github.com/openkruise/rollouts/pull/155), [@Kuromesi](https://github.com/Kuromesi))
+- Rollout support patch PodTemplateMetadata. ([#157](https://github.com/openkruise/rollouts/pull/157), [@zmberg](https://github.com/zmberg))
+- Rollout only webhook workload which has rollout CR. ([#158](https://github.com/openkruise/rollouts/pull/158), [@zmberg](https://github.com/zmberg))
+- Advanced deployment scale down old unhealthy pods firstly. ([#150](https://github.com/openkruise/rollouts/pull/150), [@veophi](https://github.com/veophi))
+- Update k8s registry references to registry.k8s.io. ([#126](https://github.com/openkruise/rollouts/pull/126), [@asa3311](https://github.com/asa3311))
+- When the data type of spec.replicas is int, cancel the upper 100 limit. ([#142](https://github.com/openkruise/rollouts/pull/142), [@MrSumeng](https://github.com/MrSumeng))
+- Add e2e test for advanced daemonSet. ([#143](https://github.com/openkruise/rollouts/pull/143), [@Janice1457](https://github.com/Janice1457))
+- Exclude workload deleted matching labels in webhook. ([#146](https://github.com/openkruise/rollouts/pull/146), [@wangyikewxgm](https://github.com/wangyikewxgm))
+- Optimize the modification of rollout to GatewayAPI httpRoute header. ([#137](https://github.com/openkruise/rollouts/pull/137), [@ZhangSetSail](https://github.com/ZhangSetSail))
+
 ## v0.3.0
 
 ### Kruise-Rollout-Controller