Hi, it's been a long time I haven't given news about 4.0.0 so here are the progress that have been made since the last update (31st of May with portlet controller integration) : 1/ Parallel portlet rendering The page controller has been improved to work in a asynchronous manner and provide parallel portlet rendering. When a page is rendered: - the controller sends the beginning of the page to the client that receives the response quickly - the portlets of the page are rendered with a java executor, when all portlets are rendered the rest of the page is sent to the client This allow to reduce the rendering time of a page and provides a quicker response to the client, in particular if the portlets declares assets that would allow to send headers soon to the client. You can see a demo here : http://gatein-4.0.0-snapshot.acceptance4.exoplatform.org/portal/demo2 with three portlets on the same page that perform a Thread.sleep of 1500ms but the page is rendered much faster than 4500ms. 2/ MongoDB support In the early GateIn 4.0.0 days the initial focus was to provide a Ram implementation of the persistence for unit testing reason. In the past few weeks I dedicated some of my time to work on a MongoDB implementation as document databases are an excellent fit for the portal persistence model. Here are the interesting points: - page layouts are stored in a single document which means that a page is fully loaded with a single database hit - low coupling between documents allow to easily persist the mixin parts of the model The current 4.0.0 branch is able to work with a MongoDB installation. 3/ GateIn objects 2.0 XML progress More descriptors have been migrated to 2.0 providing simpler and better XML: - it is possible to define a page for the root navigation node - some XML tag have been unified : label and title -> display-name - windows are now uniquely named in a page layout 4/ organization integration The organization and related services have been merged from current GateIn 3.x master. In particular the work on the SSO integration with Twitter/FB/Google is also integrated. The page https://github.com/gatein/gatein-portal/tree/4.0.0/portal is kept up to date and explains how to setup a MongoDB installation. cheers Julien