Bukkit

Stage: Early Programming

Pre 0.1A_01

Stages:

Early Programming: No public testing. Planning.

Early Testing: Early Testing of the mod. Alpha Start

Official Testing: First part of testing done. Refining Early Parts and adding more.

Late Alpha Testing: Fine tuning of the Early parts of the Mod. Alpha End

Early Beta Testing: Fine Tuning of Alpha parts of the Mod and lighter possible additions. Beta Start.

Official Beta Testing Start: Heavy on testing - less, but bigger updates.

Mid Beta Testing: Tuning the Mod, probably more updates, Alpha download links removed.

Late Beta: Fine tuning the Mod.

1.0: With official testing done, the mod will come out officially and will never have as many real updates, ALL testing links gone.