What's the recommended upgrade process for moving from an older godot-python version to the latest?

[whogben]

I'd love to make use of the latest, and am hoping for advice on how to upgrade my current project.

The last time I upgraded, i started a fresh godot project and migrated my settings and files in there - but the project has gotten more complex now, and it would be ideal to upgrade it in-place some how. What do you guys do?