TrueNAS CORE Community Release Documentation
This content documents the end of life 13.3 TrueNAS Community release. Archival documentation is provided for reference only and not actively maintained. Use the Product and Version selectors above to view content specific to another TrueNAS release.
13.3 Version Notes
8 minute read.

13.3
TrueNAS CORE 13.3, the latest version of the most reliable and highest-quality platform for traditional primary storage use cases, continues to focus on ensuring storage reliability, stability, and security for existing users.
With this release, TrueNAS CORE enters a sustaining engineering phase within the TrueNAS project.
TrueNAS CORE 13.3 includes these updates:
- FreeBSD 13.3
- OpenZFS 2.2.3
- Samba 4.19
- Updates to SMART, Network UPS Tools (NUT), and other services
- Various security and bug fixes
TrueNAS 13.3-RELEASE is intended solely for community users looking for incremental fixes specific to FreeBSD 13.3, Jails, Bhyve, OpenZFS, and Samba. See the official announcement for details and upgrade recommendations.
13.3-RELEASE is not available for Enterprise system upgrades. TrueNAS 13.0 remains the recommended option for Enterprise deployments in a stable production environment. TrueNAS 13.0 continues to be supported with security hotfixes and resolutions for any newly discovered major bugs.
See the software status page for up to date deployment recommendations for different TrueNAS user types.
The release names and dates provided here are tentative and can change at any time.

CORE™ | Enterprise™
Due to security vulnerabilities and maintainability issues, the S3 service is deprecated in TrueNAS CORE 13.0 and removed in CORE 13.3 (NAS-127694). Beginning in CORE 13.0-U6, the CORE web interface generates an alert when the deprecated service is either actively running or is enabled to start on boot. Users should move any production data away from the S3 service storage location before migrating to TrueNAS 24.04 or newer, which have MinIO applications available. See also Feature Deprecations.
The web UI Shell is removed in CORE 13.3. Users can continue to access the shell using SSH or a physical system connection with serial cable or other direct method (NAS-124392).
The Plugins, Jails, and Virtual Machines features are untested and provided without support to the TrueNAS Community. Users with a critical need to use containers or virtualization solutions in production should migrate to the tested and supported virtualization features available in TrueNAS SCALE. TrueNAS Enterprise customers can contact iXsystems to schedule a TrueNAS SCALE deployment. See CORE to SCALE Migrations for more information.
13.3 releases are only available as manual update
See Updating TrueNAS for instructions about updating with either file type.

flowchart LR A["11.3-U5"] -->|update| B["12.0-U8.1"] B -->|update| C["13.0-U6.7"] C -->|update| D["13.3-U1.2"] D -->|migrate| E["25.04.0"]

flowchart LR A["11.3-U5"] -->|update| B["12.0-U8.1"] B -->|update| C["13.0-U6.7"]
Click the component version number to see the latest release notes for that component.
Component | Version |
---|---|
FreeBSD | 13.3-RELEASE-p2 |
OpenZFS | 2.2.4-1 |
The items listed here represent new feature flags implemented since the previous update to the built-in OpenZFS version.
Feature Flag | GUID | Notes |
---|---|---|
blake3 | org.openzfs:blake3 | |
block_cloning | com.fudosecurity:block_cloning | |
draid | org.openzfs:draid | draid is not supported in the TrueNAS CORE web interface. See TrueNAS SCALE for this feature. |
head_errlog | com.delphix:head_errlog | |
vdev_zaps_v2 | com.klarasystems:vdev_zaps_v2 | |
zilsaxattr | org.openzfs:zilsaxattr |
For more details on feature flags see OpenZFS Feature Flags and OpenZFS zpool-feature.7.
April 29, 2025
The TrueNAS team is pleased to release TrueNAS 13.3-U1.2! This maintenance release resolves a critical OpenZFS issue.
- Error with device removal and block pointers remap with cloned blocks NAS-133555.
13.3-U1.2 marks the final release for the TrueNAS CORE 13.3 software train. We extend our heartfelt thanks to all our community users who have journeyed with us throughout the life-cycle of TrueNAS CORE 13.3.
As we close this train, we invite you to explore our newest TrueNAS Community Edition solutions. TrueNAS 25.04 (Fangtooth) brings improvements to Apps and OpenZFS for both Community and Enterprise users, and is the recommended migration path for current 13.3 installations.
If any security or data integrity issues do arise, we will notify the Community of these. The expected resolution will be in the TrueNAS Community Edition.
January 31, 2025
iXsystems is pleased to release TrueNAS 13.3-U1.1!
This is a maintenance release with important updates for the rsync service.
Updates to the rsync daemon mode to address recent CVEs (NAS-133561). See the TrueNAS Security Advisories for more details about the CVEs, including the iXsystems response.
Port additional upstream fix for the rsync daemon (NAS-133755).
November 21, 2024
iXsystems is pleased to release TrueNAS 13.3-U1!
This is a maintenance release with important security updates. It is recommended for all users of CORE and Enterprise running 13.x or previous software versions. TrueNAS SCALE & SCALE Enterprise systems are not impacted.
Resolve a vulnerability involving python deserialization (CVE-2020-22083).
Address a security vulnerability with the jails system (iocage).
In addition to the included fixes included, additional vulnerabilities are identified related to iocage (A FreeBSD jail manager), which is the infrastructure component that operates both the Jails and the Plugins system on CORE. This update includes a mitigation that ensures any systems not running jails or plugins are safe from the iocage vulnerability impact.
Because these vulnerabilities are architectural in nature and the iocage application has not been under active development for many years, it is unlikely to receive fixes related to these vulnerabilities. Systems running Jails or Plugins are still be exposed to the iocage vulnerabilities.
Users who run 3rd party applications on TrueNAS are highly encouraged to upgrade to SCALE, which is actively supported and not impacted by any known vulnerabilities at this time. As always, users are encouraged to follow security best-practices to minimize the risk to your system and important data.
TrueNAS Enterprise 13.x users should schedule an update with TrueNAS Support.
For other known issues in 13.3 releases, please see the 13.3-RELEASE Ongoing Issues list available from Jira.
August 13, 2024
iXsystems is pleased to release TrueNAS CORE 13.3-RELEASE! This stabilized release is intended only for community users who are looking for the upstream incremental fixes included in this release. See the 13.3 introduction at the top of this page or the official announcement for more details.
This release includes a very small number of notable changes from the BETA2 release:
- Updates openssh package to address CVE-2024-6387 (NAS-129828)
- Includes VNC functionality fixes (NAS-130278)
- Fixes image placeholders for iX Plugins (NAS-129352)
- Updates samba and fixes issue with Time Machine share and snapshot creation (NAS-130169)
Click here for the full changelog of completed tickets that are included in this release.
Click here to see the latest information about issues discovered in this release, including future fix versions.