Migrate Marko 5 (Class API / legacy widget API) applications and component libraries to Marko 6 (Tags API). Use when asked to upgrade Marko, convert class components to tags, remove the Class or widget API, or plan an incremental Marko 6 adoption using the Marko 5 interop layer.
Apply Marko syntax and best practices when editing `.marko` files and building Marko components.