add change log for v0.5 (#37)

Signed-off-by: Mike Ng <[email protected]>

Author: mikeshng

CHANGELOG/CHANGELOG-v0.5.md

@@ -0,0 +1,31 @@
+# Changelog since v0.4.0
+All notable changes to this project will be documented in this file.
+
+## v0.5.0
+
+### New Features 
+For improvement to scaling. ([@xiangjingli](https://github.com/xiangjingli) [@philipwu08](https://github.com/philipwu08)) [#35](https://github.com/open-cluster-management-io/multicloud-operators-subscription/pull/35)
+- Propagate application subscription to managed clusters using work API.
+- Introduce SubscriptionReport CRD to provide the results of individual subscriptions on the hub.
+- Introduce SubscriptionStatus CRD to represents the status of all the resources deployed of a subscription on a cluster.
+- Add new subscription summary aggregation controller for aggregating all cluster subscriptionReports to app subscriptionReport.
+- Rename most references of multicloud to multicluster.
+- Separate out placementrule entry into its own binary.
+
+
+### Added
+- Add secondary channel support for subscription. ([@rokej](https://github.com/rokej)) [#25](https://github.com/open-cluster-management-io/multicloud-operators-subscription/pull/25)
+- Add allowable and deny list support for subscription. ([@rokej](https://github.com/rokej)) [#35](https://github.com/open-cluster-management-io/multicloud-operators-subscription/pull/35)
+
+### Changes
+- Rename sample for order when applied. ([@vincent-pli](https://github.com/vincent-pli)) [#34](https://github.com/open-cluster-management-io/multicloud-operators-subscription/pull/34)
+- Misc doc related updates. ([@vincent-pli](https://github.com/vincent-pli) [@wzhanw](https://github.com/wzhanw))
+
+### Bug Fixes
+- Remove owner reference from managed cluster subscription. ([@mikeshng](https://github.com/mikeshng)) [#33](https://github.com/open-cluster-management-io/multicloud-operators-subscription/pull/33)
+- Fix when Git subscription fails on managed cluster, host subscription is not updated. ([@rokej](https://github.com/rokej)) [#22](https://github.com/open-cluster-management-io/multicloud-operators-subscription/pull/22)
+- Fix AWS S3 listing objects to make sure all objects (> 1000) is able to be fetched. ([@rokej](https://github.com/rokej)) [#21](https://github.com/open-cluster-management-io/multicloud-operators-subscription/pull/21)
+- Fix after Git application deployment, do not remove application resources when kustomization build fails. ([@rokej](https://github.com/rokej)) [#20](https://github.com/open-cluster-management-io/multicloud-operators-subscription/pull/20)
+
+### Removed & Deprecated
+- Remove deployable API dependency ([@xiangjingli](https://github.com/xiangjingli) [@philipwu08](https://github.com/philipwu08) [@mikeshng](https://github.com/mikeshng)) [#35](https://github.com/open-cluster-management-io/multicloud-operators-subscription/pull/35)