The reason you are having a hard time finding the latest information on DB Libraries is because you have already found it. There have been some discussion on Phobos possible having SQLite, and a Standard DB interface, but as of now there is only the older projects.
My tip for knowing what language version a library works for is actually found on Wiki4d[1], but all it is is: does it mention support for D2? If it does not you are looking at a D1 project. You will have to look at example code or the library to decide if it is Tango or Phobos from there. 1. http://www.prowiki.org/wiki4d/wiki.cgi?DevelopmentWithD
