According to SourceForge, the last release of Jython, version 2.1, was more than three and a half years ago (2001/12/31, 1295 days ago.) Hopefully Jython development and usage will pick up some steam again.
From the Release Notes:
Welcome to Jython 2.2a1
=======================
This release includes many major changes since the last full release:
- new-style classes
- Java Collections integration
- PEP 302 implementation
- iterators
- generators
- __future__ division
- support for running on JDK1.5
- new installer
- a significant number of features to bring Jython in line with CPython
- many, many bugfixes
It was compiled a OS X with JDK1.4 but should run on JDK 1.2 +.
The full set of changes are too numerous to list in detail. Please consult
the sourceforge tracker for all closed issues since the last release.
Please email jython-dev@lists.sourceforge.net with questions.
thanks,
The Jython Development Team