Latest Release - January 11th, 2014
Elgg 1.8.18 is the latest and recommended version of Elgg.
Latest 1.7 release - January 3rd, 2014
Elgg 1.7.21 includes an important bugfix.
It is the recommended release if using Elgg 1.7.
If you are looking for somewhere to host your Elgg powered network, we are putting together a list of providers who have added Elgg hosting to their services.
If you're a developer and want the latest code you can grab the latest work in progress through GitHub: