I received email fairly recently which was about updating your channel.
My channel has been up for about a year now and I am wondering what I need to do to keep up to date
with my Roku channel.
I lost the original message,
thanks
Kevin
and i haven’t received such email, so… 
I think the email you are referring to was about the phase out and eventual removal of the standard interface screens, the migration to SceneGraph components.
https://blog.roku.com/developer/2017/02/01/legacy-sdk/
