@anonymouse99-
What is the full text of the message you received?
As far as I know, the models that are about to lose support are some older models with model numbers 27xx and 3500.
Check your model numbers via Settings > System > About on each device.
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
If this post solves your problem please help others find this answer by clicking "Accept as Solution.".
Ultra 4800 | Streaming Stick 4K+ 3821 | TCL Roku TV 43S245/C107X