How are you currently releasing new versions of a design system?

Here’s an approach I’m wondering about:

You publish v2.0 components as soon as they are ready (and from the same library file as v1.0). Once all components are in their v2.0 state maybe you can make an announcement to designers so they know there is 100% support for v2.0. As you’re releasing those v2.0 components they can continue working with v1.0 components in the files they’re in today (avoiding accepting changes if they wish). Then the next time they start a new working file they’ll automatically have 2.0 components.

This assumes working files don’t last very long. That might not be the case. It also could be the case that new files are started while you’re in between v1.0 and v2.0… so more and more I’m understanding why you’d want to make a copy of the library 😅. But (to me) that feels like a risky move. It sort of cheapens your source of truth, and could create confusion.

How long is the “lifespan” of a working file for designers on your team?