FreeCORE carries the TrueNAS CORE 13.3 system forward as an independently maintained operating system on FreeBSD.
15.0-U1 is stable. TrueNAS CORE 13.3 systems upgrade straight to 15.0 in place, then continue on the project’s update train.
in-place upgrade
ThanksFreeNAS ·TrueNAS CORE ·FreeBSD ·OpenZFSOriginal authorship is credited in the source’s license headers.
FreeBSD® 15 · OpenZFS
© 2026 The FreeCORE Project Team.
FreeCORE is an independent fork of TrueNAS® CORE 13.3, rebased on FreeBSD 15 after upstream development of CORE ended.
FreeCORE is an independent project, not affiliated with, sponsored by, or endorsed by iXsystems, Inc. or The FreeBSD Foundation. TrueNAS® is a registered trademark of iXsystems, Inc. FreeBSD® is a registered trademark of The FreeBSD Foundation.