ActiveMQ Classic 5.4.0 Release

Warning

This release has been retracted due to bug AMQ-3491. It is no longer downloadable from ASF servers. Please use the ActiveMQ Classic 5.4.3 Release instead.

Apache ActiveMQ Classic 5.4.0 is primarily a maintenance release which resolves 283 issues.

New Features in 5.4.1

• Encrypted passwords
• Added selector support in Ajax

New Features in 5.4

• Delay and Schedule Message Delivery
• Message Priority
• WebSockets
• Better OSGi support
• Broker side options for updating failover clients automatically of new brokers joining and leaving the cluster - see Failover Transport Reference
• Enhanced Shell Script - for starting, stopping and managing the broker in a Unix environment
• Easy way to configure Web Console
• Selectors for Ajax and REST consumers
• JaasDualAuthentcationPlugin
• Anonymous users
• Ajax Adapters
• … and much more

Note: XML configuration is now validated against the schema

The XML configuration syntax is now validated. The broker schema element is an alphabetically ordered sequence. Validation can now cause existing xml configuration files, with out of order elements, to fail to load with XML parse errors, halting the broker start. Fix any ordering issues to continue.

Note: New jetty XML configuration

The jetty XML configuration now uses direct jetty bean syntax in the absence of xbean support. This renders existing (pre 5.4) jetty xml configuration invalid. It will be necessary to reapply custom changes using the default jetty.xml as a template.

Getting the Binary Distributions

Verify the Integrity of Downloads

It is essential that you verify the integrity of the downloaded files using the PGP or MD5 signatures. The PGP signatures can be verified using PGP or GPG. Begin by following these steps:

1. Download the KEYS
2. Download the asc signature file for the relevant distribution
3. Verify the signatures using the following commands, depending on your use of PGP or GPG:

   $ pgpk -a KEYS
   $ pgpv apache-activemq-<version>-bin.tar.gz.asc
   

   or

   $ pgp -ka KEYS
   $ pgp apache-activemq-<version>-bin.tar.gz.asc
   

   or

   $ gpg --import KEYS
   $ gpg --verify apache-activemq-<version>-bin.tar.gz.asc
   

(Where is replaced with the actual version, e.g., 5.1.0, 5.2.0, etc.).

Alternatively, you can verify the MD5 signature on the files. A Unix program called md5 or md5sum is included in most Linux and Unix distributions. It is also available as part of GNU Textutils. Windows users can utilize any of the following md5 programs:

• md5
• md5sums
• SlavaSoft FSUM

Getting the Binaries using Maven 2

To use this release in your maven project, the proper dependency configuration that you should use in your Maven POM is:

<dependency>
  <groupId>org.apache.activemq</groupId>
  <artifactId>activemq-core</artifactId>
  <version>5.4.0</version>
</dependency>

Getting the Source Code

Source Distributions

SVN Tag Checkout

svn co http://svn.apache.org/repos/asf/activemq/tags/activemq-5.4.0

Changelog

For a more detailed view of new features and bug fixes, see the release notes

Also see the previous ActiveMQ Classic 5.3.2 Release