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

# Release Notes

Last updated on Jan 08, 2024

Download the [latest version](https://dl.incredibuild.com/iblinux-latest) of Incredibuild for Linux

## 4.0

A major release including a completely new Coordinator user interface and management capabilities.

* Completely new Coordinator user interface including:

  * [Agent list](/linux/4.0.0/coordinator-agents-list) with ability to sort and filter, and [add descriptions](/linux/4.0.0/coordinator-agent-list-actions) to Agents.

  * New user interface for [Coordinator Settings](/linux/4.0.0/coordinator-settings).

  * New user interface for [viewing](/linux/4.0.0/license-overview) and [uploading](/linux/4.0.0/license-standard) your licenses.

* You can now create, edit, and [manage users](/linux/4.0.0/user-management) including managing permission levels, passwords, and more.

* We have introduced an API layer including the following features:

  * APIs are secured using an [API Key](/linux/4.0.0/api-keys).

  * Return detailed data about your builds using our [Build History API](/linux/4.0.0/api-build-data).

  * Create and manage users with the [User Management AP](/linux/4.0.0/api-users)I.

* To support these changes, the following items have been modified:

  * The [installation](/linux/4.0.0/installing-components) and [upgrade](/linux/4.0.0/upgrade) commands have been changed.

  * Updated the [certified Linux distributions](/linux/4.0.0/supported-platforms-tools#Certifie).

  * Updated the [system requirements](/linux/4.0.0/system-requirements).

## Earlier Versions of Incredibuild for Linux

**Note:** Incredibuild for Linux Version 3 is going into maintenance mode and will no longer be supported after December 31, 2024.

Go to the [documentation for earlier versions](/linux/4.0.0/linux-versions).