JAGS 2.2.0 is now available . This is a patch release, so should present no major changes to the user interface.
You will find the source as well as binary packages for Windows and Mac OS X from Sourceforge . For 64-bit Mac OS X a new optimized binary package is available called JAGSdist-2.2.0 fast.dmg which offers substantial speed improvements over the standard Mac OS X binary. For other platforms, please consult the JAGS home page to see if there is a binary distribution available.
Thanks to the team who produce the binary packages: Bill Northcott (Mac OS X), Lars Vilhuber (Fedora, RHEL, SLES, OpenSUSE), Dirk Eddelbuettel (Debian, Ubuntu) and Michael Rutter (Ubuntu).