Yep. Give people two choices.
1) Purchase a major version and get no updates.
2) Purchase a subscription and get constant updates.
1) Purchase a major version and get no updates.
2) Purchase a subscription and get constant updates.
Pay for the major version, get all of its updates. Then pay for update (to next major plus its updates) with a discount.
If you don't prefer the pay, you can keep what you have.
This is what Reaper, Forklift, CameraBag and countless others do, and it works very well.
Edit: This comment contained Forklift as an example before, but they have changed their model, so it's removed.
Let me update the comment.
Choices!
As a customer, so many frustrating things boil down to not being given a choice. Not even having a tickbox to express which way you'd like it even if the default is otherwise.