1.21.11 (17 h, dec 9, 2025 y – 16 h, mar 24, 2026 y)

Description:

1.21.11, the release of Mounts of Mayhem, is a game drop for Java Edition released on December 9, 2025, which adds the nautilus, zombie nautilus, nautilus armor, spears, netherite horse armor, camel husks, parched, and zombie horsemen.

A separate unobfuscated version of 1.21.11 was released, titled 1.21.11 Unobfuscated (or 1.21.11_unobfuscated when in the launcher). This is an experimental version released in preparation for obfuscation being removed from Java Edition clients and servers.

1.21.11 is the final version of Java Edition to be obfuscated, the final version released in 2025, the final version to require Java 21, and the final version to use the old 1.x.y version format.

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