Downloading the Stretch IoT (non-GUI) from beagleboard.org[1] yields an image with kernel 4.4.91-ti-r133. A Stretch IOT image from Robert Nelson[2] has kernel 4.9.74-ti-r90. My question specifically is: why the difference, and is one preferable over the other? Thanks
[1] https://beagleboard.org/latest-images
[2] https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#Stretch_Snapshot_iot