Release v0.5.0 requirements

[liurupeng]

Tasks

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1. Add Controller Revision (Implementation of KEP #238) #277
   approved cncf-cla: yes kind/feature lgtm size/XL +5
   
2. ⚠️ Action Required: Replace Deprecated gcr.io/kubebuilder/kube-rbac-proxy #274
   good first issue help wanted +2
   
3. Better events for leader pod deletions #243
   good first issue help wanted kind/feature +3
4. Support to install lws at user specified namespace #215
   kind/feature +1
5. Injecting TPU_NAME environment variable #209
   approved cncf-cla: yes kind/feature lgtm size/S +5
   
6. All LWS groups get updated all together during rolling update when LWS controller pod is restarted or controller re-sync happens #225
   kind/bug +1
   

[liurupeng]

I have added all the items to the task list, we may not necessarily support all of them, we will update once finalized

[kannon92]

Could you please add a potential date you'd like to target?

[liurupeng]

@kannon92 yep, I would target Nov 15 as the next release date

[ahg-g]

New target is late January, the key feature we need is controller-revision to address the issues related to replica restarts on controller upgrade.