update operator notes

blog/releases/announcing-knative-v0-18-release.md

@@ -20,6 +20,7 @@ Follow the instructions in the documentation [Installing Knative](https://knativ
 - Eventing APIs gradauted from v1beta1 to v1
 - Change storage versions of Eventing flows
 - Eventing Contribution sources are moved to a new github organization [knative-sandbox](https://github.com/knative-sandbox)
+- The `kn` CLI now has alias for commands and other new features.
 
 Remember to check the [upgrade docs](https://knative.dev/docs/install/upgrade-installation/) for any concerns applicable to your current version before you upgrade to the latest version.
 
@@ -223,17 +224,22 @@ For a better user experience we added some aliases for commonly used commands:
 ### Operator v0.18
 
 
-TBD
+The new operator can now deploy the new version `v0.18` of serving and eventing components.
 
 <details><summary>Bug Fixes</summary>
 
-TBD
+- [#202](https://github.com/knative/operator/pull/202) Docs for publishing the operator in OperatorHub
+- [#299](https://github.com/knative/operator/pull/299) Don't wait for Ksvc to scale to zero #299 (thanks @cardil)
 
 </details>
 
 <details><summary>Other Changes</summary>
 
-TBD
+- [#266](https://github.com/knative/operator/pull/266) Skip the version checking for network ingress deployment
+- [#275](https://github.com/knative/operator/pull/275) Bumping k8s to 1.18
+- [#273](https://github.com/knative/operator/pull/273) Add linting config and fix issues
+- [#278](https://github.com/knative/operator/pull/278) Transform jobs first so images are overridable
+- [#280](https://github.com/knative/operator/pull/280) Pin deps to release-0.18
 
 </details>