the latest sdk JetPack 4.2.2 NVIDIA L4T 32.2.1 contains this linux kernal Kernel version 4.9 supposedly based on Ubunto LTS 18.04.
yet if you download and install Ubuntu LTS 1804 you actually get Kernal version 4.15
it appears that Kernal version 4.9 actually came out in dec 2016 as part of Ubunto 16.04
it also appears that Kernal version 4.14 from nov 2017 supplies support for many more wifi devices which would eliminate a lot of questions in this forum
are there any plans to upgrade the jetpack releases to actually use the kernal provided with ubuntu lts 18.04?
is there any description of the upgrade philosophy for jetpack releases being created by nvidia with which ubuntu versions and linux kernal versions will be in the eventual upgrade paths in the future?