we won’t “move” to 4.16. Our release process is to use the current LTS kernel, and stick to it. that’s why we maintain our own release branches which are derived from LTS (4.4, 4.9 and 4.14 now). You can expect a major kernel migration , once a year.
Several years ago, we used to move to every new kernel, and users complained that we were moving too fast… there is no perfect answer , i guess!
We used 4.11 throughout last year on DB820c bring up. Mostly because when we started to develop for 820c, 4.9 (current LTS) was already too old, and we didn’t want to start on an old branch. however our 4.14 release branch was updated last week, for 820c, and from now on, we won’t be maintaining 4.11 branch anymore.
Also note that once we switch to a new LTS, we no longer provide support for the older LTS. That can of course be done if needed, but that becomes a business discussion (and it won’t come for free).