The Zephyr project supports the following versions with security updates:
- The most recent release, and the release prior to that.
- Active LTS releases.
At this time, with the latest release of v2.5.0, the supported versions are:
- 1.14.x: Current LTS
- v2.4.0: Prior release
- v2.5.0: Current release
Please see our Security Vulnerability Reporting page for details on the process.