Zephyr 2.1 Released

David Leach


We are excited to announce the release of Zephyr RTOS version 2.1.0!


Major enhancements with this release include (but are not limited to):


  • Normalized APIs across all architectures.
  • Expanded support for ARMv6-M architecture.
  • Added support for numerous new boards and shields.
  • Added numerous new drivers and sensors.
  • Added new TCP stack implementation (experimental).
  • Added BLE support on Vega platform (experimental).
  • Memory size improvements to Bluetooth host stack.


The detailed release notes can be found here:


I would like to thank the community members who contributed to this release. In total 219 contributors provided PRs in the development of 2.1 with a total of 350+ community members providing issues, PRs, and comments. It has taken a lot of hard work from everyone in the Zephyr community!

Starting now, the tree is open for new features targeting 2.2 release, which is tentatively scheduled for February 28th 2020.


Thank you again,


David Leach



David Leach


NXP Semiconductors

phone: +

Email: david.leach@...



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