MCVersions.net
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1.21 Pre-Release 1 (known as 1.21-pre1 in the launcher) is the first pre-release for Java Edition 1.21, released on May 29, 2024, which fixes bugs and makes changes to portals.
Released 2024-05-29
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MCVERSIONS
You'll need the proper technical setup and configuration to run your own server. If you're not comfortable with this, we recommend using Nodecraft for a hassle-free experience.If you understand and wish to proceed, you can download the jar files below.