I think it's cool to see GitHub embracing calls to move away from "master branch" terminology and doing so in a way which provides further flexibility and power to its users. That's a win-win no matter how you feel about the surrounding debate. As of October 1st, all new depositories will default to use main unless otherwise specified, but you can define your own default however you please. For me, that means I've switched to use trunk moving forward by changing the settings in my repo settings page. There are options for enterprise and organisation owners too 👍