{{Infobox version
|title=1.13.1-pre1
|image =18w33a.png
|image2=Java Edition 1.13.1-pre1.png
|edition=Java
|type=Pre-release
|date=August 16, 2018
|clienthash=7f7ae07cc319346b632f6c9f26ff8c67728b203c
|jsonhash=45558ece6af1cdd1beaa4d18c0ef984eee8598ac
|serverhash=988fec4e71e5fa1fc29a50230de05a11973d62ab
|parent=1.13.1
|prevparent=1.13
|prev=18w33a
|next=1.13.1-pre2
|nextparent=1.13.2
}}<onlyinclude>

'''1.13.1-pre1'''<ref>{{Mcnet|minecraft-snapshot-18w33a|Minecraft 1.13.1 pre-release 1|August 16, 2018}}</ref> is the first pre-release for [[Java Edition 1.13.1]], which renames {{cmd|chunk}} to {{cmd|forceload}}, improves performance, and fixes a few bugs.

== Changes ==
=== Command format ===
* Renamed {{cmd|chunk}} to {{cmd|forceload}}.

=== General ===
* Improved performance of rendering chunks.
* Improved performance of spawning mobs.

== Fixes ==
{{fixes|fixedin=1.13.1-pre1|prefix=Minecraft
|;old
|31681|Fog and clouds darken when indoors or under trees (<16 Chunk Render Distance).
|51150|Swimming in water, riding a minecart or standing on soul sand and snow layers 8 darkens the sky at day time.
|109311|Woodland mansion failed to generate.
|132457|Advancement and dimension command suggestions require minecraft namespace.
|132496|Passive Mob Spawning Breaks 1.9+.
|132762|Observed signal strength observer abnormality.
|134587|Using {{key|F3+T}} several times will eventually freeze iMac.
|135484|Pressing {{key|Q}} + right click a block while holding a double block only shows the top of the block.
|135878|Maps delete recently marked banners upon reopening world.
|;dev
|133713|{{cmd|spreadplayers}} and {{cmd|worldborder|<center>}} suggests X/Y instead of X/Z when nothing is typed.
|135392|Dimension arguments fail to properly serialize, breaking "{{cmd|chunk in}}" and "{{cmd|execute in}}" in multiplayer.
|135398|{{cmd|chunk (force{{!}}unforce)}} with {{cmd|execute store success}}.
|135424|Relative coordinates cannot be used with {{cmd|chunk}}.
|135426|Cannot tab-complete chunk coordinates in {{cmd|chunk}}.
|135428|{{cmd|chunk}} targets the overworld by default and not the sender's dimension.
|;prev
|136051|Mob spawning ignores light level, biomes and block height.
}}</onlyinclude>

== Video ==
Video made by [[slicedlime]]:
{{yt|rLJVXCNfQbU}}

== References ==
{{reflist}}

== Navigation ==
{{Navbox Java Edition versions|1.1x}}

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