Account Settings Add new accounts or manage existing ones.

Current Accounts

Minecraft Settings Options related to game launch.

Game Resolution

✖

Launch in fullscreen.

Automatically connect to the server on launch.

Launch game process detached from launcher. If the game is not detached, closing the launcher will also close the game.

Java Settings Manage the Java configuration (advanced).

Launcher Settings Options related to the launcher itself.

Allow prerelease updates. Prereleases contain the latest features and updates, however they may be buggy.
This will always be true if you are using a prerelease version.