Use the Source, Luke!
Open source software means freedom - the freedom to examine the source code, to play around with it, critisize it and improve on it. We host the source code for Composite C1 at CodePlex which enable you to download it in it's entirety, browse individual code files and follow the check-in history to see whats going on.
Recent source code events
► Source code checked in, #17098
Chaning some internal classes to public to support existing/old implementations. [11926](by Martin Jensen)
► Source code checked in, #16374
Fixing issue with MultikeySelector (selection would reset after save). See http://compositec1.codeplex.com/workitem/1229 [11843](by Marcus Wendt)
► Source code checked in, #16274
Fixes issue where <em><f:function ...></em> would break in the Visual Editor, if parameters existed. See http://compositec1.codeplex.com/workitem/1144 Fixes issue where Add New Page workflow wou...
► Source code checked in, #15737
Fixing label for commercial package price. [11781](by Marcus Wendt)
► Source code checked in, #15736
Fix: "Home" button in the build-in C1 Console browser did not function. [11779](by Marcus Wendt)
The Source is strong with this one...
The source code is available under the Mozilla Public License 1.1 which means that you can modify Composite C1 and even distribute you own version if you want to, as long as you stick to the rules in the MPL 1.1 license. Of course we hope that any effort you put into improving Composite C1 will be shared with us an the rest of the community, but legally you have the freedom of open source when it come to Composite C1.
The Composite C1 core team do their daily check-ins and builds on a Team Foundation Server running at Composite HQ in Copenhagen and when we deem we have a stable build, we sync with the TFS at CodePlex via a branch. This mean that the sources you can get from CodePlex is pretty much as fresh as it gets without beeing too fresh.

