Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.. Move other release notes out of CHANGELOG.md **What this PR does / why we need it**: Move 1.4, 1.5, 1.6 release notes out of CHANGELOG.md. **Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes # ref: #48985 #52174 #52518 **Special notes for your reviewer**: Not move 1.7 release notes yet. I don't think we want to move it out of CHANGELOG.md until 1.8 is released. /cc @jdumars @dchen1107 **Release note**: ```release-note NONE ```