On behalf of the Jython development team, I'm pleased to announce that Jython 2.5.0 final is available for download: http://downloads.sourceforge.net/jython/jython_installer-2.5.0.jar see the installation instructions: http://wiki.python.org/jython/InstallationInstructions
Jython 2.5.0 brings us up to language level compatibility with the 2.5 version of CPython. This release has had a strong focus on CPython compatibility, and so this release of Jython can run more pure Python apps then any previous release. Please see the NEWS file for detailed release notes.
I want to thank all of the amazing people who have contributed in large and small ways to this important Jython release. For the first time in a long time we have Jython that is a modern version of Python. Enjoy!
Please report any bugs that you find: http://bugs.jython.org
Thanks!
-Frank