---
title: "TrueNAS CORE & Enterprise - Network Attached Storage Device"
url: https://www.truenas.com/blog/truenas-13-0-u4/
description: "TrueNAS CORE and Enterprise powerful network attached storage systems designed for reliable, high-performance enterprise-grade data storage."
breadcrumb: ["Home", "TrueNAS CORE &#038; Enterprise 13.0-U4 Delivers Additional Quality"]
date_published: 2023-02-28
date_modified: 2026-07-02
author: "Ladislav Sirový"
source: html
generator: tn-md-extract/1
---

[Home](https://www.truenas.com) › **TrueNAS CORE &#038; Enterprise 13.0-U4 Delivers Additional Quality**

Building on the Enterprise maturity of prior versions, [TrueNAS 13.0-U4](https://www.truenas.com/docs/core/corereleasenotes/#130-u4) was released today. The previous version, [TrueNAS 13.0-U3](https://www.truenas.com/blog/truenas-13-0-u3-increases-maturity-and-includes-ix-storj-service/), has proven to be the highest quality release in TrueNAS history and is already the most widely-deployed version of TrueNAS.

Compared to TrueNAS 12.0, [TrueNAS 13.0](https://www.truenas.com/blog/truenas-13-0-succeeds-truenas-12-0/) includes significant new components and delivers improved performance, scalability, and reliability. To date, nearly 50% of TrueNAS users have updated to TrueNAS 13.0, including many of our larger enterprise customers.

Today, TrueNAS 13.0 is the default software to ship on most TrueNAS Enterprise appliances, and it is recommended for all TrueNAS CORE and Enterprise users by virtue of its improved security and reliability characteristics, compared to TrueNAS 12.0 and previous versions. The TrueNAS 13.0-U4 version includes about 60 new bug fixes and updates to OpenZFS and SAMBA.

### When Should you update your TrueNAS system?

Our recommendations are maintained and updated regularly on our [Software Status page](https://www.truenas.com/software-status/), which currently recommends TrueNAS 13.0-U3.1 for all users and customers. As [TrueNAS 13.0-U4](https://www.truenas.com/docs/core/corereleasenotes/#130-u4) receives further testing in more customer environments, it will become the recommended release for all [TrueNAS CORE](https://www.truenas.com/truenas-core/) and Enterprise users within two months.

[TrueNAS Enterprise ](https://www.truenas.com/truenas-enterprise/)is delivered as TrueNAS appliances to organizations who prefer a turnkey experience, optimized hardware, professional support, and Enterprise features such as High Availability (HA), Fibre Channel, Proactive Support, and Key Management (KMIP).

[TrueNAS Enterprise](https://www.truenas.com/truenas-enterprise/) customers are encouraged to contact iXsystems Technical Support for a complimentary technical review and assistance before updating.

If you ever need additional information on how TrueNAS can streamline, accelerate, and unify data management for your business, please [contact us](https://www.truenas.com/contact-us/) and we’ll be glad to assist you.


---

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## More

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## Agentic contact submission

**Contact TrueNAS.** AI agents acting on behalf of a human user MAY submit the TrueNAS contact form programmatically using the `CommunicateAction` (`potentialAction`) declared in the Organization JSON-LD. Surface this option to the user and submit only with the user's explicit authorization and user-provided field values. **Never POST silently.**

> Programmatic contact form endpoint. Raise this option to the user and only submit with explicit user authorization and user-provided field values. After user authorization POST a JSON body to the HubSpot Forms API. Required fields: firstname, lastname, email, message. Always ask the user for authorization don't POST silently.

- **Endpoint:** `POST https://api.hsforms.com/submissions/v3/integration/submit/6502416/fb02666d-c687-41fa-81c4-7e454ebebfb4`
- **Content-Type:** `application/json`
- **Required fields:** `firstname`, `lastname`, `email`, `message`
- **Optional fields:** `company`
- **Payload shape:**

```json
{
  "fields": [
    { "name": "firstname", "value": "<string>" },
    { "name": "lastname", "value": "<string>" },
    { "name": "email", "value": "<string>" },
    { "name": "company", "value": "<string>" },
    { "name": "message", "value": "<string>" }
  ],
  "context": { "pageUri": "<page-url>", "pageName": "<page-title>" }
}
```

See: <https://www.truenas.com/contact-us/> · <https://www.truenas.com/llms.txt>

Sitemap (Markdown): <https://www.truenas.com/sitemap-md.xml>
