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 (Release Notes)
git clone && cd zephyr && git checkout tags/v1.7.0
Download MD5:

Release archives

Zephyr Kernel v1.6.0 (Release Notes)
Zephyr Kernel v1.5.0 (Release Notes)
Zephyr Kernel v1.4.0 (Release Notes)
Zephyr Kernel v1.3.0 (Release Notes)
Zephyr Kernel v1.2.0 (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)