The long awaited 1.9.4 release is finally here. This release fixes a number of bugs and implements a few new features. One of the more significant features is the Sitemap implementation. You can find more information on the implementation and instructions on how to set it up on David's blog.
There is also a new set of XFN icons to go along with Subtext's XFN Highlighter. I think the new icons and highlighter will work very well with my new XFN Link Editor for Windows Live Writer (once it finally gets approved by the Windows Live Gallery people).
You can download the latest release from the Subtext SourceForge site.