The new elementary OS 0.4 Loki Beta, just announced. The new version is based on Canonical's latest Ubuntu 16.04 LTS Xenial Xerus operating system, which means it brings most of the core components and technologies, such as the Linux 4.4 LTS kernel, GTK+ 3.18, and Vala 0.32.
Please note that it is not recommended to install the first beta of elementary OS 0.4 Loki on computers you use for your work, as the operating system is still under development and it is natural to have bugs. But you can try the operating system with Live ISO provided by developers.
The new operating system is currently only available on picture of x64 bits. The final version of elementary OS 0.4 Loki is expected to be released in the coming months.
In the meantime you can download and try the Live ISO from the link below. For more information you can see her by clicking here of project.