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Zephyr Project
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The Zephyr Project is a scalable real-time operating system (RTOS) supporting
multiple hardware architectures, optimized for resource constrained devices,
and built with security in mind.
The Zephyr OS is based on a small-footprint kernel designed for use on
resource-constrained systems: from simple embedded environmental sensors and
LED wearables to sophisticated smart watches and IoT wireless gateways.
The Zephyr kernel supports multiple architectures, including ARM Cortex-M,
Intel x86, ARC, NIOS II, Tensilica Xtensa, and RISC V, and a large number of
`supported boards`_.
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Community Support
The Zephyr Project Developer Community includes developers from member
organizations and the general community all joining in the development of
software within the Zephyr Project. Members contribute and discuss ideas,
submit bugs and bug fixes, and provide training. They also help those in need
through the community's forums such as mailing lists and IRC channels. Anyone
can join the developer community and the community is always willing to help
its members and the User Community to get the most out of the Zephyr Project.
Welcome to the Zephyr community!
Here's a quick summary of resources to find your way around the Zephyr Project
support systems:
* **Zephyr Project Website**: The website is the
central source of information about the Zephyr Project. On this site, you'll
find background and current information about the project as well as all the
relevant links to project material. For a quick start, refer to the
`Zephyr Introduction`_ and `Getting Started Guide`_.
* **Releases**: Source code for Zephyr kernel releases are available at On this page,
you'll find release information, and links to download or clone source
code from our GitHub repository. You'll also find links for the Zephyr
SDK, a moderated collection of tools and libraries used to develop your
* **Source Code in GitHub**: Zephyr Project source code is maintained on a
public GitHub repository at
You'll find information about getting access to the repository and how to
contribute to the project in this `Contribution Guide`_ document.
* **Samples Code**: In addition to the kernel source code, there are also
many documented `Sample and Demo Code Examples`_ that can help show you
how to use Zephyr services and subsystems.
* **Documentation**: Extensive Project technical documentation is developed
along with the Zephyr kernel itself, and can be found at Additional documentation is maintained in
the `Zephyr GitHub wiki`_.
* **Issue Reporting and Tracking**: Requirements and Issue tracking is done in
the Github issues system:
You can browse through the reported issues and submit issues of your own.
* **Security-related Issue Reporting and Tracking**: For security-related
inquiries or reporting suspected security-related bugs in the Zephyr OS,
please send email to We will assess and
fix flaws according to our security policy outlined in the Zephyr Project
`Security Overview`_.
Security related issue tracking is done in JIRA. The location of this JIRA
* **Mailing List**: The `Zephyr Mailing Lists`_ are perhaps the most convenient
way to track developer discussions and to ask your own support questions to
the Zephyr project community.
You can also read through message archives to follow
past posts and discussions, a good thing to do to discover more about the
Zephyr project.
* **IRC Chatting**: You can chat online with the Zephyr project developer
community and other users in our IRC channel #zephyrproject on the IRC server. You can use the web
client or use a client-side application such as pidgin.
.. _supported boards:
.. _Zephyr Introduction:
.. _Getting Started Guide:
.. _Contribution Guide:
.. _Zephyr GitHub wiki:
.. _Zephyr Mailing Lists:
.. _Sample and Demo Code Examples:
.. _Security Overview: