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Java Edition 1.15.1 Pre-release 1

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This page covers a development version that has a major issue under certain conditions.
 
The dedicated server for this version has a security vulnerability in the Log4j library that could be used to perform a remote code execution exploit. It can be addressed by appending a certain JVM argument to the server startup command line.[1]
Minecraft 1.15.1 Pre-release 1
Edition Java Edition
Release date December 12, 2019
Type Pre-release
Pre-release for 1.15.1
Downloads Client (.json)
Server
Obfuscation maps Client
Server
Protocol version 574
Data version 2226
Resource pack format 5
Data pack format 5
Minimum Java version Java SE 8
β—„β—„  1.15 1.15.1 1.15.2 β–Ίβ–Ί
1.15.1 Pre-release 1
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1.15.1 Pre-release 1 (known as 1.15.1-pre1 in the launcher) is the first and only pre-release for Java Edition 1.15.1, released on December 12, 2019. This is the final pre-release released in 2019.[2]

Changes

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General

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Network handling

  • Improved network handling of invalid biome IDs.

Performance

  • Optimized chunk rendering performance, especially for chunks with many different block states.

Fixes

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5 issues fixed

From released versions before 1.15

  • MC-135050 – NullPointerException while tesselating block model.

From 1.15

  • MC-167482 – Corrupt chunk causes force upgrading a world to fail.
  • MC-167530 – Anvils causing java.lang.StackOverflowError.

Other

  • Fixed an error that was spammed to the game's log files caused by custom monster spawners spawning villagers.
  • Fixed a crash that occurred in the Realms screen.

Videos

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Video made by slicedlime:

Trivia

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  • 1.15.1-pre1 is the last pre-release to be released in 2019 and the 2010s decade.

References

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Navigation

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