---
title: "November 2026 - Version 3.57"
slug: "version-357"
updated: 2026-11-10T17:18:41Z
published: 2026-11-10T17:18:41Z
canonical: "docs.blackthorn.io/version-357"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blackthorn.io/llms.txt
> Use this file to discover all available pages before exploring further.

# November 2026 - Version 3.57

## November 2026 - Version 3.57

*(Release Date: Tuesday, November 10th, 2026)*

Please review the updates below and follow the upgrade instructions to upgrade your Messaging application.

## Table of Contents

- [What's new](/docs/version-357#whats-new)
- [Known issue](/docs/version-357#known-issue)
- [Field/Layout Updates](/docs/version-357#fieldlayout-updates)
- [Upgrade Instructions](/docs/version-357#upgrade-instructions)

## What's new

### Clearer A2P registration rejections

- When an A2P 10DLC brand or campaign registration is rejected, Messaging now shows a clearer explanation of why, including campaign rejection reasons that were not shown before. You can see it in the account information on the **Messaging Admin** tab.

## Known issue

- In Messaging Admin setup, the shortcut link to Business Hours in the setup pop-up doesn't open. Business hours and after-hours responses still work. To edit business hours, go to **Setup > Business Hours** directly. A fix is planned for a future release.

## Field/Layout Updates

This release has no new or changed objects, fields, page layouts, or permission sets.

## Upgrade Instructions

Go to the Blackthorn [Candy Shop](https://candyshop.blackthorn.io/products) to upgrade Messaging to the newest version.