First and last milestone of the XWiki Enterprise 2.2 version (Roadmap). 

This release mainly introduces new Model and the possibility to register wiki macros for any user or wiki.

New and Noteworthy (since XWiki Enterprise 2.1.1)

Contextual wikimacros

It's now possible for any user to register wiki macro anywhere and in any wiki.

For example if the user does not have the proper right, only he will see the macro he registered, then an admin can re-save it to make it available for everyone if the macro is validated.

New Model module with Reference implementation
The goal is to provide APIs to remove all String manipulations around documents and attachment names. It also introduces the concept of reference for any entity of the model and the parser/serializer associated. For now Wiki, Space, Document and attachment are supported; classes objects and properties should come in milestone 2.
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