I am working on a project using the i.MX6UL and I am curious about the state of Linux kernel support in various different kernel recipes in meta-freescale.

After reading documentation and various posts, this is my understanding of the different kernels in the layer:

linux-fslc: purely community maintained kernel, kept pretty up to date with upstream

linux-imx-fslc: community maintained kernel, based off NXP official BSP release kernel

linux-imx: NXP official BSP release kernel

For i.MX6UL support and functionality, is there a significant difference between linux-fslc and linux-imx-fslc?

For linux-imx-fslc, is there a specific reason it is still using 4.9-1.0.x-imx and not the newer 4.9-2.3.x-imx branch?

If linux-imx-fslc is the best option, is anyone maintaining the 4.9 branch and planning to keep it up to date with upstream LTS updates?  I see that 4.9-2.3.x-imx has been updated to 4.9.166.

In short, I am looking for the best maintained and updated kernel with support for the i.MX6UL, including security fixes into the future.  My existing project uses a customized linux-imx 4.9 kernel.

Any help would be greatly appreciated.

Thanks,

Jesse