Stable Release - March 20, 2016
Elgg 2.1.1 (changelog) is the latest and recommended version of Elgg.
You can alternately clone our starter project repo and install with composer.
LTS Release - May 29, 2016
Elgg 1.12.10 (changelog) is the recommended release if using Elgg 1.12.
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: