The second beta version of Geeklog 1.8.0 is now available for download and has also been installed here on geeklog.net for you to try it out.
The new features have already been documented elsewhere, but the most visible ones are those "Login with Facebook" and "Login with Twitter" buttons. So if you are using one of those services, you can now use your Facebook or Twitter credentials to log into geeklog.net (and, potentially, any other Geeklog site, if the site admin enables it).
As for changes since the first beta - there were quite a few of them, actually. Quite a few things had to be tweaked, including the theme and the language files, so we decided that a second beta was necessary before we move on to release candidates. And for that, we need your help!