A default executable is supplied with the plugin and will be used if the user didn't specify which executable to use. In this release, the plugin hosts Tclets inside the browser by default. In a future release the default will be to host Tclets in an external process. For information on how to use the external process facility in the plugin, see the plugin manual page. Lots of information about the Tclet is now available inside the Tclet itself, e.g. the URL from which it was loaded and the text of the Tclet.
Many bug fixes related to initialization and de-initialization.
Previously these bugs would cause the plugin to eventually fail. Much better support for fonts, using both X11 fonts and portable font name specification. See the Tk 8.0 documentation. Faster loading of Tclets due to smarter use of streaming and the browser cache. Reloading of a previously used Tclet is much faster.