I'm planning to do a rolling upgrade from 3.4.6 to 3.8.0. While researching zookeeper recently I could swear that I stumbled across some documentation with some warnings about 3.4.6. Specifically it sounded like you might encounter failures during the upgrade if you jumped straight from 3.4.6 to 3.8.0 (and other newer versions also perhaps).
I recall that it was recommended to first upgrade to 3.4.10 and THEN jump to the 3.8.0 version. I am now feeling like I dreamt all of this because i cannot locate that information for the life of me. Does this ring a bell with anyone? Perhaps you can send me a link or tell me I'm losing it (or both)? Thanks!
