Minitube 4.0

This is the first Qt6-based release of Minitube.

Starting from this release Minitube requires a subscription of €9.99 / year. I’m trying to keep my apps sustainable and I think this is the only way forward. Subscription can be managed on PayPal or on the Mac App Store. Also the license per platform is gone and now buying Minitube gets you a code valid for all the supported platformed.

Users that bought Minitube less than a year ago don’t need to do anything for now. I hope older users will decide to support further development and keep this app alive.