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Immutant is a cohesive suite of Clojure libraries that attempts to reduce the incidental complexity inherent in non-trivial applications. Each library can be used on its own, or in any combination as needed. And each automatically provides enhanced functionality when deployed to an application server.

The services backed by the libraries include Undertow for web, HornetQ for messaging, Infinispan for caching, Narayana for transactions, and Quartz for scheduling.

Have questions or want to get involved? Come see us in IRC or join our mailing lists.

Read the Guides Clone the Demo App

Latest News

Immutant 2.1.7 Release

Thursday, May 18, 2017
We just released Immutant 2.1.7. This release includes the following changes: We've upgraded our Undertow dependency to the latest stable version (1.4.14.Final) to resolve an issue with socket leaks when using async http... Read more »

Immutant 2.1.6 Release

Thursday, January 12, 2017
We just released Immutant 2.1.6. This release includes the following changes: Update to Ring 1.5.1 to address a security vulnerability. This vulnerability only affects applications that are running from the filesytem, not from... Read more »

Immutant 2.1.5 Release

Monday, June 27, 2016
We just released Immutant 2.1.5. This release includes the following changes: Support for deployment to the newly-released JBoss EAP 7 A fix to allow you to use XA, immutant.messaging/listen, and a remote... Read more »

Immutant 2.1.4 Release

Wednesday, April 20, 2016
We just released Immutant 2.1.4. There are just a couple of small changes in this release, only one of which is notable: you can now provide a handler deal with any errors... Read more »

Releases

Version 2.1.7 was released on Thursday, May 18, 2017. You can read the announcement or browse the documentation.

For usage, see the Installation guide.

Version 1.1.4 was released on Friday, August 1, 2014. You can read the announcement or browse the documentation.

Install via:

$ lein immutant install 1.1.4

Don't have the lein-immutant plugin installed? Learn how, or download the zip archive.

Every push to our git repository generates a build on our CI server. You can view the results of those builds on our 2.x or 1.x incremental build pages.

Upcoming Talks

16-18 November, 2015
Philadelphia, PA
Toby Crawley will be in attendance. Find him if you want to chat about Immutant.

Interested in hosting or giving a talk on Immutant? Get in touch.