FreeCore lineage descends from FreeNAS and TrueNAS® CORE, and builds on FreeBSD and OpenZFS. FreeCore carries the TrueNAS CORE 13.3 system forward as an independently maintained operating system on FreeBSD. FreeCore 15.0-U1.3 is the current stable release. TrueNAS CORE 13.3 systems upgrade straight to 15.0 in place, then continue on the project’s update train. 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.