4
I agree with Dave that it doesn't seem to impact performance much, but "just" bugfixes.
However, I am very happy to see the XHTML compliant debug.tpl since it is annoying for me (and anyone else using the Tidy firefox plugin) to have many XHTML warnings when Smarty debug is enabled.
"When you can flatten entire cities at a whim, a tendency towards quiet reflection and seeing-things-from-the-other-fellow's-point-of-view is seldom necessary."
Cusix Software