Starting with the v1.5.0 release, updated versions of the Zephyr project are released approximately every three-months. Zephyr project is provided as source code and build scripts for different target architectures and configurations, and not as a binary image. 

This downloads page is where you’ll find the latest tagged source code release along with its corresponding release notes, latest release listed first.

  • All Zephyr project source code is maintained in a Git repository; you can either download source as a tar.gz file using the download link provided, or use the Git clone and checkout commands listed below.

  • The tools used to build an image are available as a Software Development Kit (SDK) on the Tools link.

  • The project’s technical documentation is also tagged to correspond with a specific release and can be found at


Zephyr kernel

Zephyr Kernel v1.7.0 - Mar 11, 2017 (Release Notes)
git clone && cd zephyr && git checkout tags/v1.7.0
Download MD5:

Release archives

Zephyr Kernel v1.6.0 - Dec 3, 2016 (Release Notes)
Zephyr Kernel v1.5.0 - Aug 26, 2016 (Release Notes)
Zephyr Kernel v1.4.0 - Jun 3, 2016 (Release Notes)
Zephyr Kernel v1.3.0 - May 2, 2016 (Release Notes)
Zephyr Kernel v1.2.0 - Apr 2, 2016 (Release Notes)


Zephyr SDK v0.9 (Release Notes)
Download MD5:

Release archives

Zephyr SDK v0.8.2 (Release Notes)
Zephyr SDK v0.8.1 (Release Notes)
Zephyr SDK v0.8 (Release Notes)
Zephyr SDK v0.7.5 (Release Notes)
Zephyr SDK v0.7.2 (Release Notes)