also a shoutout:
go to Minecraft and pay for an account (15€). Do this before the 20'th december, because that is when this game goes into beta from alpha. In the beta, there will be a change in the ToS (or something), which makes one big change:
So: If you buy the game before 20'th December, you get free updates in the beta, and also after release. If you buy the game after 20'th December, you will get free updates in the beta, but you might have to pay for updates when the game goes retail.We will also change the license to remove the line that promises all future versions of the game for free. Please note that this change only affects people who buy the game after December 20, so if you got the game for during alpha, you will still get all future updates for free, despite this change. A promise is a promise.
Buying the game during beta will include all updates up until release, of course, and bug patches will be free.
TL;DR: Buy the game NOW and you will get forever free updates!