# RabbitMQ

RabbitMQ is an open-source message-broker software (sometimes called message-oriented middleware) that originally implemented the Advanced Message Queuing Protocol (AMQP) and has since been extended with a plug-in architecture to support Streaming Text Oriented Messaging Protocol (STOMP), MQ Telemetry Transport (MQTT), and other protocols.
Written in Erlang, the RabbitMQ server is built on the Open Telecom Platform framework for clustering and failover. Client libraries to interface with the broker are available for all major programming languages. The source code is released under the Mozilla Public License.
Since November 2020, there are commercial offerings available of RabbitMQ, for support and enterprise features: "VMware RabbitMQ OVA", "VMware RabbitMQ" and "VMware RabbitMQ for Kubernetes" (different feature levels) Open-Source RabbitMQ is also packaged by Bitnami and commercially for VMware's Tanzu Application Service.

## History

Originally developed by Rabbit Technologies Ltd. which started as a joint venture between LShift and CohesiveFT in 2007, RabbitMQ was acquired in April 2010 by SpringSource, a division of VMware. The project became part of Pivotal Software in May 2013. Which then got acquired back by VMware in December 2019.
The project consists of:
* The RabbitMQ exchange server
* Gateways for AMQP, HTTP, STOMP, and MQTT protocols
* AMQP client libraries for Java, .NET Framework and Erlang. (AMQP clients for other languages are available from other vendors.)
* A plug-in platform for extensibility, with a predefined collection of supported plug-ins, including:
** A "Shovel" plug-in that takes care of moving or copying (replicating) messages from one broker to another.
** A "Federation" plug-in that enables efficient sharing of messages between brokers (at the exchange level).
** A "Management" plug-in that enables monitoring and control of brokers and clusters of brokers.

## Examples

This section gives sample programs written in Python (using the pika package) for sending and receiving messages using a queue.

### Sending

The following code fragment establishes a connection, makes sure the recipient queue exists, then sends a message and finally closes the connection.

### Receiving

Similarly, the following program receives messages from the queue and prints them on the screen: (Note: This example does not acknowledge receipt of the message.)

## End-of-support schedule

| Release | Released | Community Support | Extended Commercial Support | Latest |
| 4.0.1 | 18 Sept 2024 | Until The Next Release | Ends 30 Sept 2027 | 4.0.5 (15 Dec 2024) |
| 3.13 | 22 Feb 2024 | Ended 18 Sept 2024 | Ends 31 Dec 2027 | 3.13.7 (26 Aug 2024) |
| 3.12 | 01 Jun 2023 | Ended 22 Feb 2024 | Ends 30 Jun 2025 | 3.12.14 (6 May 2024) |
| 3.11 | 26 Sep 2022 | Ended 2 Jun 2023 | Ended 30 Jun 2024 | 3.11.28 (22 Dec 2023) |
| 3.10 | 3 May 2022 | Ended 31 Jul 2023 | Ended 31 Dec 2023 | 3.10.25 (17 Jul 2023) |
| 3.9 | 23 Jul 2021 | Ended 31 Jan 2023 | Ended 31 Jul 2023 | 3.9.29 |
| 3.8 | 01 Oct 2019 | Ended 31 Jul 2022 | Ended 31 Jul 2022 | 3.8.35 |
| 3.7 | 28 Nov 2017 | Ended 30 Sep 2020 | Ended 30 Sep 2020 | 3.7.28 |
| 3.6 | 22 Dec 2015 | Ended 31 May 2018 | Ended 31 May 2018 | 3.6.16 |
| 3.5 | 11 Mar 2015 | Ended 31 Oct 2016 | Ended 31 Oct 2016 | 3.5.8 |
| 3.4 | 21 Oct 2014 | Ended 31 Oct 2015 | Ended 31 Oct 2015 | 3.4.4 |
| 3.3 | 02 Apr 2014 | Ended 31 Mar 2015 | Ended 31 Mar 2015 | 3.3.5 |
| 3.2 | 23 Oct 2013 | Ended 31 Oct 2014 | Ended 31 Oct 2014 | 3.2.4 |
| 3.1 | 1 May 2013 | Ended 30 Apr 2014 | Ended 30 Apr 2014 | 3.1.5 |
| 3.0 | 19 Nov 2012 | Ended 30 Nov 2013 | Ended 30 Nov 2013 | 3.0.4 |