To get into the Minecraft beta on Java edition on PC, you'll need to follow these steps: Install the Minecraft Java client by logging into your account and downloading it.

Rather than enrolling in a dedicated beta program, Minecraft: Java Edition allows you to select a slice of pre-release software for you to try.

Java Edition users of Minecraft will need Java installed. After doing that, you’ll need to download the version of Minecraft Forge that matches your server version.