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Immutant is an integrated suite of Clojure libraries. It represents an attempt to reduce the incidental complexity inherent in non-trivial applications. The services backed by the libraries include Undertow for web, HornetQ for messaging, Infinispan for caching, and Quartz for scheduling.

There are two major versions of Immutant: 1.x and 2.x (aka The Deuce). The former is no longer under active development. This post explains our motivation for the redesign.

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

Read the Tutorials Clone the Demo App

Latest News

Immutant 2 (The Deuce) Alpha Released

Wednesday, August 27, 2014
We're as excited as this little girl to announce our first alpha release of The Deuce, Immutant 2.0.0-alpha1. This represents a significant milestone for us, as we've completely removed the app server from Immutant. It's... Read more »

Immutant 1.1.4 Released

Friday, August 1, 2014
We're as happy as a kid at a basketball game to announce Immutant 1.1.4 - "OneFourMoreTheRoad". This is strictly a bug fix release and, unless any new bugs are reported against it, possibly our... Read more »

lein-immutant Plugin 1.2.2 Released

Thursday, July 31, 2014
We just released version 1.2.2 of our Leiningen plugin. This release contains the following changes: Active profiles are now honored for the immutant test task. The immutant run and immutant server tasks no... Read more »

Immutant 1.1.3 Released

Tuesday, June 17, 2014
We're as happy as a kid with a banana to announce Immutant 1.1.3 - "Already?". This is strictly a bug fix release and, unless any new bugs are reported against it, possibly our... Read more »

Releases

Version 2.0.0-alpha1 was released on Wednesday, August 27, 2014. You can read the announcement or browse the documentation.

For usage, see the Installation tutorial.

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

17 July, 2014
Denver, Colorado

Introduction to Immutant 2

Toby Crawley will present at Den of Clojure in Denver, Colorado.

20 August, 2014
Copenhagen, Denmark

Web App Using Immutant

Claus & Jacob will present at Copenhagen Clojure Meetup in Copenhagen, Denmark.

25 September, 2014
Durham, North Carolina

Introduction to Immutant 2

Toby Crawley will present at TriClojure in Durham, North Carolina.

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