It would be so nice if you could add search. And if you could create a place to find things that are not obvious to find, like API references, CLI references, current benchmark results, etc. Sounds a bit silly: I keep forgetting where those things are and while I can bookmark places, I would still think that your site would benefit from search and maybe a sitemap.
A similar corollary point could be made about the blog. Seems you have categories and such. But I cannot search by category, time, version, ... Maybe you should invent a semantic blog and manage it with Stardog