Sorry for the confusion around this. V10 will be released this summer after a brief beta period (beginning in a few days).
10.0.0-beta tag on dockerhub was a mistake. We prematurely ran our deploy CircleCI job before merging some important PR’s. We’ll push a new
10.0.0-beta image once those PR’s are merged. We’ll announce on the forum when the beta is ready.
V9 is still “in beta” in name only. Because we never pushed a non-beta release image to dockerhub. Since the V10 release is forthcoming we won’t go through the hassle of making another V9 image.
Once we release V10, we recommend users on V8 (stable) and V9 (beta) should upgrade to V10.