Instructions for downloading and installing are at
http://www.turbogears.org/1.5/docs/Install.html
Changelog and upgrade instructions are available via
http://www.turbogears.org/1.5/docs/WhatsNew.html
We enabled and tested some new performant ways of running TurboGears 1.5
behind WSGI enabled web servers, as explained here:
http://www.turbogears.org/1.5/docs/Deploy/
We recommend upgrading older TurboGears 1.x versions to 1.5 which is
usually much easier than upgrading to 2.x.
New TurboGears projects should start with TurboGears 2 which is the
current, actively maintained variant of the TurboGears web-framework,
based on Pylons instead of CherryPy.
Have fun with TurboGears and let us know if there are any problems.
-- Christoph Zwerschke