Java Edition Classic 0.0.19a/Development

At least one unreleased development version of the game labelled 0.0.18a_02 was developed on June 19, 2009. They show in-development features later included in 0.0.19a and later releases.
== New blocks showcase (June 16, 2009) ==
Word of Notch post
* Blocks
** Glass
*** Uses an ugly, very streaky texture. This texture did not make it into 0.0.19a, but did make a brief return in 0.0.19a_01.
** Sponge
== Gallery ==
Glassclassic.jpg
Category:Unreleased builds