{{Infobox version
|title=Minecraft 12w40b
|image=12w40a Banner.png
|image2=Java Edition 12w40b.png
|edition=Java
|type=Snapshot
|parent=1.4.2
|date=October 5, 2012
|clientdl=[https://vault.omniarchive.uk/archive/java/client-release/1.4/pre/12w40b.jar Client] ([https://archive.org/download/Minecraft-JSONs/12w40b.json .json])
|serverdl=[https://vault.omniarchive.uk/archive/java/server-release/1.4/pre/12w40b.jar Server]
|exedl=[https://vault.omniarchive.uk/archive/java/server-release/1.4/pre/12w40b.exe .exe]
[[Category:Versions using legacy download site]]
|prevparent=1.3.2
|prev=12w40a
|next=12w41a
|nextparent=1.4.4
}}<onlyinclude>

'''12w40b''' is the eleventh [[snapshot]] for [[Java Edition 1.4.2]], released on October 5, 2012<ref>http://web.archive.org/web/0/http://www.mojang.com/2012/10/minecraft-snapshot-12w40a</ref> to fix some of the bugs and crashes in [[Java Edition 12w40a|12w40a]] and add a new [[commands]] feature.

== Additions ==
=== Command format ===
; [[Commands#Tilde and Caret notation|Tilde notation]] 
* Added tilde notation (<code>~</code>) to allow relative coordinates specification in commands.

== Fixes ==
; 3 bugs fixed
* Fixed a bug causing block breaking to carry over to the next block player starts to break.
* Fixed [[beacon]] beam rendering at short and tiny render distance.
* Fixed a crash related to [[map]]s in [[stronghold]]s.</onlyinclude>

== References ==
{{reflist}}

== Navigation ==
{{Navbox Java Edition versions|1.0}}

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