Yes very common. I’ve helped some projects relicense in the past (because the original developer didn’t actually understand the license they chose) and it’s ard

Yes very common. I’ve helped some projects relicense in the past (because the original developer didn’t actually understand the license they chose) and it’s arduous having to contact each individual (and sometimes companies) to relicense. You can do license changes without that however as long as: 1. You license per file in the repository. This can be quite arduous but many projects will move the old licensed stuff into a sub project to make that easier to grok. 2. Your new license is compatible with the old license.