Instructions on how to update your Roku app

I had a third-party create an app for me on Roku. I’m trying to figure out how to update the channel. He sent me instructions, but I am sure i’m not executing the instructions correctly. Is there a tutorial somewhere? Thanks for any answers that can be provided.

I noticed that you posted in the Direct Publisher forum. Please note that Direct Publisher is no longer supported for the Roku platform. If your third-party developer created a Direct Publisher channel, you must convert it to an SDK format.

Are you trying to update a DP or an SDK channel?