Well… I think the work is doing the planning you are looking for.
A release manager would need to make the “go” decision for when we decide to branch of the canary build for more stable.
The easiest and quickest way to fill the role, is to look at open issues and forum posts, and then making a decision about what needs to be fixed before we move.
If you are comfortable with Git, you can create the release branch, and cherry pick away. If you do not like to work with Git branches, someone else can take on that part.