OmniOS Community Edition release r151026u is now available.

This update requires a reboot

Security fixes

  • Mitigation for Foreshadow/L1TF - CVE-2018-3646, with thanks to Joyent. This includes a CPU microcode update.

    For full protection from this problem, ensure that sensitive services, including KVM instances, are separated into different non-global zones.

    Protection status for this and other vulnerabilities can be viewed with mdb -ke ::sec.

Bug fixes

Other changes

  • The installer is now able to force 4k or 8k alignment on the root pool regardless of the underlying storage. Previously this did not work for NVMe or virtual disks - Kayak issue 72

    New installation media have been prepared for this release and can be found at

For more details, see

Any problems or questions, please get in touch via the lobby or #omnios on