Elgg 0.65 left the building on Friday; as ever, head over to Elgg.org for all Elgg software-related resources. There are a ton of improvements in this one, including better internationalisation support, the filters you see on the Elgg.net all weblogs page and more.
For interested developers, there’s some discussion going on in the mailing list about how to take the plugin architecture forward. This will have a major impact on the future of the system, so if you have an interest in developing plugins, you may wish to check it out. See the developers page for a link to the mailing list and more.