You are indeed "on their schedule" -- see eg https://devcenter.heroku.com/changelog-items/1603 https://devcenter.heroku.com/changelog-items/1603. But that's the

You are indeed "on their schedule" -- see eg https://devcenter.heroku.com/changelog-items/1603 https://devcenter.heroku.com/changelog-items/1603. But that's the trade-off you deal with, so that you don't have to manage all this stuff yourself.