The site has been upgraded regularly as Tiki increments onward, and no blog posts were written to draw attention to the Tiki 16 iteration. But now we're at 17.0. Check out the new features and improvements listed at https://doc.tiki.org/Tiki 17.
It was recently pointed out that this site doesn't showcase the themes that are bundled with Tiki (and there are a bunch of them) as well as it used to. The aftermarket themes in the Themes Marketplace have sort of elbowed them out. But we can add a section to that page or similar to let people see the themes that come with the Tiki package as well as those that can be installed afterwards.