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@tobias
tobias committed Apr 13, 2015
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Expand Up @@ -6,18 +6,12 @@ layout: release
tags: [ releases ]
---

{{this section needs a rewrite}}
We're {{something something}} to
announce *The Deuce's* official release: Immutant **2.0.0**. At this
point, we feel pretty good about the stability of the API, the
performance, and the compatibility with both WildFly 8 and the
forthcoming WildFly 9.
announce *The Deuce's* official release: Immutant **2.0.0**!

We expect a final release before spring (in the Northern
Hemisphere). We would appreciate all interested parties to try out
this release and submit whatever issues you find. And again, big
thanks to all our early adopters who provided invaluable feedback on
the alpha, beta, and incremental releases.
We want to thank of our early adopters who provided invaluable
feedback on the alpha, beta, and incremental releases - we couldn't
have done this without you.

## What is Immutant?

Expand All @@ -32,7 +26,28 @@ in real world applications.

## What's changed in this release?

{{stuff}}
We have quite a few fixes in this release, as well as changes to a few
things in the API that we wanted to get right before 2.0.0. The
notable API changes are:

* The concurrency for queue [listeners] now defaults to the number of
cores to provide better messaging throughput out of the box (it was
1). The default for topic listeners remains at 1.
* The `:subscription-name` option to [immutant.messaging/context] has
been renamed to `:client-id` to remove confusion with the
`:subscription-name` option to [immutant.messaging/subscribe]. Both
are only used for durable topic subscribers.
* [immutant.messaging.pipeline/pipeline] error handlers now get passed
the decoded message instead of the `Message` object, and there is
now a [immutant.messaging.pipeline/retry] function to ease
retrying messages from the error handler.
* You can now set the headers and status of an async HTTP channel
response when calling [immutant.web.async/send!]. You can also now
provide any valid Ring body type in addition to `String` and
`byte[]` to `send!`.
* The `:on-complete` option to `immutant.web.async/send!` has been
replaced with two separate callback options: `:on-success` and
`:on-error`.

For a full list of changes, see the issue list below.

Expand Down Expand Up @@ -73,6 +88,7 @@ you can always find us on [#immutant on freenode](/community/) or

<ul>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-261'>IMMUTANT-261</a>] - add cluster tests</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-360'>IMMUTANT-360</a>] - Consider defaulting listener :concurrency based on the number of cores</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-514'>IMMUTANT-514</a>] - Notes for improving the migration guide</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-525'>IMMUTANT-525</a>] - wrap-resource from ring 1.3.2 breaks requests to / in WildFly</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-527'>IMMUTANT-527</a>] - Session cookie attributes ignored in-container</li>
Expand All @@ -88,10 +104,18 @@ you can always find us on [#immutant on freenode](/community/) or
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-538'>IMMUTANT-538</a>] - Review guides before release</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-539'>IMMUTANT-539</a>] - Multiple schedulers with different options cannot be created</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-540'>IMMUTANT-540</a>] - Expose internal quartz scheduler</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-543'>IMMUTANT-543</a>] - :on-close callback for web.async channel not firing when client disappears </li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-543'>IMMUTANT-543</a>] - :on-close callback for web.async channel not firing when client disappears</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-544'>IMMUTANT-544</a>] - Throw when immutant.messaging.hornetq/set-address-settings is called in-container</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-545'>IMMUTANT-545</a>] - Rename msg/context&#39;s :subscription-name back to :client-id</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-546'>IMMUTANT-546</a>] - Calling immutant.scheduling/stop with no args throws NPE</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-547'>IMMUTANT-547</a>] - Allow setting status and headers from async/send!</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-548'>IMMUTANT-548</a>] - Transactions don&#39;t work from an uberjar</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-549'>IMMUTANT-549</a>] - Allow sending ring bodies to channels</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-550'>IMMUTANT-550</a>] - Replace :on-complete with :on-success &amp; :on-error for async/send!</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-553'>IMMUTANT-553</a>] - Don&#39;t create a transaction manager at compile time</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-554'>IMMUTANT-554</a>] - Concurrent ws requests can cause a channel to be used for multiple clients in-container</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-555'>IMMUTANT-555</a>] - pipeline error-handlers should be passed the decoded mesage</li>
<li>[<a href='https://issues.jboss.org/browse/IMMUTANT-556'>IMMUTANT-556</a>] - pipeline error-handlers should be able to retry a message and still deliver to the caller&#39;s future</li>
</ul>

[Clojars]: https://clojars.org/org.immutant/immutant
Expand All @@ -106,10 +130,10 @@ you can always find us on [#immutant on freenode](/community/) or
[Quartz]: http://quartz-scheduler.org/
[current issues]: https://issues.jboss.org/browse/IMMUTANT
[Narayana]: http://www.jboss.org/narayana
[new API]: /documentation/2.0.0/apidoc/immutant.web.async.html
[Sente]: https://github.com/ptaoussanis/sente
[WebSocket]: http://en.wikipedia.org/wiki/WebSocket
[Server-Sent Events]: http://www.w3.org/TR/eventsource/
[HTTP stream]: http://en.wikipedia.org/wiki/Chunked_transfer_encoding
[immutant.web.middleware]: /documentation/2.0.0/apidoc/immutant.web.middleware.html
[web guide]: /documentation/2.0.0/apidoc/guide-web.html
[listeners]: /documentation/2.0.0/apidoc/immutant.messaging.html#var-listen
[immutant.messaging/context]: /documentation/2.0.0/apidoc/immutant.messaging.html#var-context
[immutant.messaging/subscribe]: /documentation/2.0.0/apidoc/immutant.messaging.html#var-subscribe
[immutant.messaging.pipeline/pipeline]: /documentation/2.0.0/apidoc/immutant.messaging.pipeline.html#var-pipeline
[immutant.messaging.pipeline/retry]: /documentation/2.0.0/apidoc/immutant.messaging.pipeline.html#var-retry
[immutant.web.async/send!]: /documentation/2.0.0/apidoc/immutant.web.async.html#var-send.21
[lein-immutant]: https://github.com/immutant/lein-immutant/

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