Smarty 2.3.0 is out, and includes a useful new debugging function and support for assigning template variables by reference. I get a mention in the CHANGELOG for a small bug fix I submitted. Open source at work.
This is Smarty 2.30 by Simon Willison, posted on 7th August 2002.
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Previously hosted at http://simon.incutio.com/archive/2002/08/07/smarty230