TrueNAS Nightly Development Documentation
This content follows experimental nightly development software. Pre-release software is intended for testing purposes only.
Use the Product and Version selectors above to view content specific to a stable software release.

25.04 (Fangtooth) Development Notes

2 minute read.

Last Modified 2024-12-09 08:24 EST

25.04 Fangtooth

This page tracks the latest development roadmap and notes for the future TrueNAS major version 25.04 (Fangtooth).
See the stable 24.04 (Dragonfish) or early development 24.10 (Electric Eel) release notes for information relating to that version.

Features

This page is being updated to follow development changes for TrueNAS 25.04 (Fangtooth). Check back soon for updates.

Release Schedule

The release names and dates provided here are tentative and can change at any time.

TrueNAS™ | Enterprise™

Current

Software Lifecycle

TrueNAS Quality Lifecycle

TrueNAS releases follow a general adoption guideline for their lifetime. Starting with the NIGHTLY builds, each stage of a major release incorporates more testing cycles and bug fixes that represent a maturation of the release. With each version release stage, users are encouraged to install, upgrade, or otherwise begin using the major version, depending on the specific TrueNAS deployment and use case:

Release Stage	Completed QA Cycles	Typical Use	Description
NIGHTLY	0	Developers	Incomplete
ALPHA	1	Testers	Not much field testing
BETA	2	Enthusiasts	Major Feature Complete, but expect some bugs
RC	4	Home Users	Suitable for non-critical deployments
RELEASE	6	General Use	Suitable for less complex deployments
U1	7	Business Use	Suitable for more complex deployments
U2+	8	Larger Systems	Suitable for higher uptime deployments

The Software Status page shows the latest recommendations for using the various TrueNAS software releases.

25.04 Nightly Development Changelog

Coming soon

The TrueNAS REST API is deprecated in TrueNAS 25.04 and replaced by the TrueNAS API Client. Full removal of the REST API is planned for a future release.
This new API Client is not the deprecated TrueNAS CLI (midcli). The API Client is integrated in TrueNAS 25.04 onwards. It provides the midclt command-line tool, and the means to easily communicate with middleware using Python to make calls through the websocket API.
This API client allows for better integration of TrueNAS into third-party solutions. Use this as a reference for projects that require direct TrueNAS integration.
TrueNAS API documentation remains available in the UI and through the TrueNAS Documentation Hub.