Java Edition 1.13.1-pre1

1.13.1-pre1

Edition	Java Edition
Release date	August 16, 2018
Type	Pre-release
Pre-release for	1.13.1
Downloads	Client (.json) Server
Protocol version	399
Data version	1626
Resource pack format	4
Data pack format	4
Minimum Java version	Java SE 8
◄◄  1.13 1.13.1 1.13.2 ►► ◄  18w33a 1.13.1-pre1 1.13.1-pre2 ►

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1.13.1-pre1 is the first pre-release for Java Edition 1.13.1 released on August 16, 2018, which renames /chunk to /forceload, improves performance and fixes bugs.

Changes

Command format

/forceload

• Renamed from /chunk.

General

• Improved performance of rendering chunks.
• Improved performance of spawning mobs.

Fixes

16 issues fixed

From released versions before 1.13.1

• MC-31681 – Fog and clouds darken when indoors or under trees (<16 Chunk Render Distance).
• MC-51150 – Swimming in water, riding a minecart or standing on soul sand and snow layers 8 darkens the sky at day time.
• MC-109311 – Woodland mansion failed to generate.
• MC-132457 – Advancement and dimension command suggestions require minecraft namespace.
• MC-132496 – Passive Mob Spawning Breaks 1.9+.
• MC-132762 – Observed signal strength observer abnormality.
• MC-134587 – Using F3 + T several times will eventually freeze iMac.
• MC-135484 – Pressing Q + right click a block while holding a double block only shows the top of the block.
• MC-135878 – Maps delete recently marked banners upon reopening world.

From the 1.13.1 development versions

• MC-133713 – /spreadplayers and /worldborder <center> suggests X/Y instead of X/Z when nothing is typed.
• MC-135392 – Dimension arguments fail to properly serialize, breaking "/chunk in" and "/execute in" in multiplayer.
• MC-135398 – /chunk (force|unforce) with /execute store success.
• MC-135424 – Relative coordinates cannot be used with /chunk.
• MC-135426 – Cannot tab-complete chunk coordinates in /chunk.
• MC-135428 – /chunk targets the overworld by default and not the sender's dimension.

From the previous development version

• MC-136051 – Mob spawning ignores light level, biomes and block height.

Videos

Video made by slicedlime: