Jkain 0.9.2 has just been released. This version has an improved cracking engine and minor bugfixes has been applied.
http://timtux.net/jkain/

Jkain 0.9.1 was just released; in this version mostly stuff “under the hood” has been fixed. Changes includes; Improved cracking engine, Improved overall performance, GUI-fixes, Minor bug fixes.
Grab it now at http://timtux.net/files/Jkain_0.9.1.zip!

Jkain version 0.9.0 was just released. This version features a total rewrite of the code. A new GUI, a new history handler and alot of other stuff… Download and take a ride!