Java Edition Alpha server 0.2.3

0.2.3 is a server version of Java Edition Alpha released with client version v1.2.1 on November 5, 2010."Minecraft Alpha 1.2.1, Minecraft Server 0.2.3" – The Word of Notch, November 5, 2010
== Changes ==
* Reverted mob spawning back to the old code.
== Fixes ==
* Fixed the player getting stuck in the top of the world in multiplayer.
== References ==
es:Java Edition Alpha server 0.2.3
pt:Edição Java Alpha server 0.2.3
ru:Alpha сервер 0.2.3
zh:Java版Alpha服务器0.2.3