Once that process is complete, your Mojang account will no longer be used to play Minecraft Java, and Mojang is giving everyone who makes the move a free in-game cape.

Java Edition will soon require a Microsoft account to play, but you'll at least be getting a free cape for your troubles.

This Fall, new Minecraft Java players will need to create a Microsoft account to log-in. Meanwhile, existing Mojang accounts will need to migrate in early 2021.

In the past, Minecraft: Java Edition players have used specialized Mojang Accounts to access their game. Mojang Studios announced in 2020 its intention to migrate all these accounts to Microsoft ...

Existing Java users will need to make the "mandatory" transition in early 2021. This will happen in batches, and once you've been transitioned you'll receive a free cape.