Zephyr v2.4.0-rc2 tagged

Maureen Helm

Hi everyone,

The second release candidate for Zephyr v2.4.0 has been tagged (v2.4.0-rc2).


The merge window for features and enhancements remains closed until v2.4.0 is released. During the stabilization period only bug-fix, documentation, and stabilization-related patches may be merged to master. Additional features or enhancements for the v2.4.0 release require approval by the TSC.


As we need to reduce bug counts for the release, you are all encouraged to submit PRs that close existing bug reports, and to help reviewing such PRs submitted by other contributors or maintainers. Current bug counts are:

    High: 0

    Medium: 25

    Low: 145


Testing Zephyr master branch during the stabilization period is also requested; please test the code base and file bug reports so they can be addressed before the release deadline.


The full release log can be found here:



More details about Zephyr releases can found on the pages below:




The final release remains scheduled for 25 Sep.


Note 1: You may continue to send Pull Requests for new features in order to gather feedback early or collaborate with others, but the release team would like to encourage everyone to focus on bugfixes and documentation improvements to the largest extent possible, so that we can release v2.4.0 on time and in the best shape possible.


Note 2: If you have a feature or enhancement you would like to submit to the TSC, please tag the Pull Request with the "TSC" label, make sure it is approved and passing CI, and attend the next TSC meeting.


A big Thank You to everyone that contributed to this release so far, be it with code, reviews, documentation or any other type of contribution!