No, but Apache 2.0 is, which is what we revert to after three years. The better analogy would be, "I've decided to become vegetarian, starting in three days." But then actually legally guaranteeing that you'll follow through vs. always pushing it off into the future which is what it sounds like with the vegetarian example, I know I wouldn't believe myself if I said that. :D
[disclosure: I'm Head of Open Source at Sentry, which owns Codecov.]