Software Releases
6 minute read.
CORE™ | Enterprise™
Each listed release links to download files for that release. For the latest deployment and update recommendations from the TrueNAS team, see the Software Status page.
Bug tickets are typically accepted for the latest release of the current stable version. Nightly builds also accept feedback and bug tickets.
Nightly builds are automatically published when automated testing passes. .iso files are available for fresh installation on disposable hardware or a virtual machine.
.update files are also available for manually updating an existing experimental system to a nightly build.
Your testing and feedback are always welcome! TrueNAS nightlies have an option in the top panel to submit feedback directly to the development team. Let us know what is working well and what can be improved!
Legacy TrueNAS versions are provided for historical context and upgrade pathways. They are provided “as-is” and typically do not receive further maintenance releases. Individual releases are within each major version.
Legacy releases can only be used by downloading the .iso file and freshly installing it to the hardware.
This website is a repository of all documentation for TrueNAS projects and related products. The TrueNAS team maintains this documentation and provides regular updates for current and in-development (future) versions of TrueNAS software. For documentation purposes, current and future releases are those recommended by the TrueNAS Software Status page for one or more user types.
Documentation for previous releases no longer recommended for any user type is archived and unmaintained. See the Documentation Archive for content related to these releases.
The chart below shows recommended paths for upgrading from earlier TrueNAS versions.
Update the system to the latest maintenance release of the installed major version before attempting to upgrade to a new major version.
Permitted upgrade methods are:
- update: apply an automatic update using the Update screen in the TrueNAS UI or install a manual update file. Some upgrade paths do not support these options (see chart).
- ISO install: save a current TrueNAS configuration file, perform a fresh install using an
.iso file for the target version, and then upload the previously saved configuration.
Users can skip major versions with a fresh ISO install followed by a configuration file upload. Carefully review release notes for each skipped major version before upgrading, noting any service deprecations or significant changes that impact the previous configuration. Consider stopping at major versions with significant impacts to address changes before continuing the upgrade path or be prepared to manually reconfigure incompatibilities on the latest target version.
This chart shows the basic update path to and from the latest release of each TrueNAS major version. Depending on your use case and risk tolerance, some users may prefer to remain on an earlier minor or major version for a period of time before updating. Visit the TrueNAS Software Status page for recommendations on which software version to use, tailored to user types ranging from Developer to Mission Critical.
flowchart LR
A["11.3-U5"] -->|update| B["12.0-U8.1"]
B -->|"update
ISO install"| C["13.0-U6.4
13.3-U1"]
C -->|ISO install| H
C -->|ISO install| I
D["22.02.4 (Angelfish)"] -->|update| E
E["22.12.4.2 (Bluefin)"] -->|update| F
F["23.10.2 (Cobia)"] -->|update| G
G["24.04.2.5 (Dragonfish)"] -->|update| H
H["24.10.2.1 (Electric Eel)"] -->|update| I
I["25.04.0 (Fangtooth)"]
flowchart LR
A["11.3-U5"] -->|update| B
B["12.0-U8.1"] -->|update| C
C["13.0-U6.4"] -->|ISO install| F
C["13.0-U6.4"] -->|"(anticipated)"| G
D["23.10.2 (Cobia)"] -->|update| E
E["24.04.2.5 (Dragonfish)"] -->|update| F
F["24.10.2.1 (Electric Eel)"] -->|"(anticipated)"| G
G["25.04 (Fangtooth)"]
The release names and dates provided here are tentative and can change at any time.
Development timelines are available below.
| 
TrueNAS 25.10 - Goldeye
Latest:Anticipated:
CORE™ | Enterprise™
TBD
Latest:
Container | Cloud
TrueCommand Next
Anticipated:Releases for major versions can overlap while a new major version is working towards a stable release and the previous major version is still receiving maintenance updates.
25.10-BETA.1
Early
TBD