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Release Java Edition Bug-fix update

Minecraft 1.5.1 “Redstone Update”

Released on 21 March 2013, eight days after 1.5, Minecraft Java Edition 1.5.1 is the bug-fix update for the Redstone Update. It fixes a bunch of bugs, including a Mac OS X crash and paintings that could not be placed, and improves performance. It adds no new content.

Released 21 Mar 2013
Are my mods ready?

Key takeaways

  • Bug fixes: 1.5.1 fixes a crash on Mac OS X with the error "OpenGL Function Not Supported" and the bug that stopped players from placing paintings, and improves performance.
  • Redstone Update: 1.5 added the Redstone Comparator, the Hopper, the Dropper, the Activator Rail, the Daylight Detector, the Trapped Chest, weighted pressure plates and the Block of Redstone.
  • Nether Quartz: Nether Quartz Ore generates in the Nether and gives quartz for the Block of Quartz, its slabs, stairs, chiseled and pillar variants.

What changed

FixesFixed a crash on Mac OS X with the error "OpenGL Function Not Supported".
FixesPaintings can be placed again.
PerformanceImproved performance.
FixesA bunch of other bugs from 1.5 have been fixed.

Source: official Java Edition 1.5.1 changelog

Mods & loaders for 1.5.1

Mods must be rebuilt for each version. Counts from the files published on Modrinth and CurseForge, in our catalog.

LoaderMods with a 1.5.1 fileLatest build
Forgenone yet7.7.2.682
Shader loadersShaders with a 1.5.1 fileLatest build
Iris3·
OptiFine2·
Popular mods OptiFine · Not yet
4 mods in our catalog have a 1.5.1 file →

10 texture packs and 7 maps in our catalog support 1.5.1.

How to play 1.5.1

  1. 01

    Open the Minecraft Launcher and select Minecraft: Java Edition.

  2. 02

    Go to Installations, create a new installation and choose version 1.5.1.

  3. 03

    Back up your worlds before opening them in a new version.

From first snapshot to release

1 snapshots, 0 pre-releases and 0 release candidates over 14 days.

  1. 1.506 Mar 2013
  2. 1.5.121 Mar 2013
All 1 test builds →

Minecraft 1.5.1 FAQ

When was Minecraft 1.5.1 released?

On 21 March 2013, eight days after 1.5, the Redstone Update (13 March 2013). 1.5.2 followed on 2 May 2013.

What did the Redstone Update add?

Redstone blocks such as the Redstone Comparator, the Hopper, the Dropper, the Daylight Detector and the Trapped Chest, Minecarts with TNT or a Hopper, and Nether Quartz. It also added the /scoreboard and /effect commands and changed texture packs to one image per block and item.

Should I update from 1.5 to 1.5.1?

Yes. 1.5.1 fixes a Mac OS X crash, paintings that could not be placed and other bugs, and improves performance, without changing gameplay.

Which Java version does Minecraft 1.5.1 need?

The official launcher runs 1.5.1 with its own Java 8 runtime, so you do not need to install Java yourself.