The new Unity 5.1 is ready for you to download.
Some new features can be found here.
The Unity 5.1 release come with
industry-leading multiplatform support, and unmatched efficiency boosted
in the cloud. It brings you a new unified
development experience for VR platforms like Oculus Rift and our easy to
use Unity Multiplayer networking solution.
Changes to your project are detected as you work and builds are
delivered automatically to your device from the cloud, or distributed to
your team so you can play them on the Web with Unity Cloud Build.
The Unity Cloud Build come with this options : Free, Pro - 25$ / month, Studio - 100$ / month and Enterprise.
You can read more about Unity 5.1 here.