Needs approval from an approver in each of these files:
- ~~[OWNERS](https://github.com/kubeedge/website/blob/release-1.18/OWNERS)~~ [fisherxu]
Approvers can indicate their approval by writing `/approve` in a comment
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Cherry pick of #648 on release-1.18.
648: update version for release 1.19
For details on the cherry pick process, see the cherry pick requests page.