Today, Sep 24, 2013, meeting the Open Text Usergroup Conference in Düsseldorf the final version 1.0 of the SmartAPI has been released. This marks the API as stable.

You can get the ready to use .dll from our download page. The source code is available on github.
There were some last changes made to the API, so have a really consistent long term supported API, which is a blast to use:

2013-09-24: Version 1.0.0.0
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API:
- Content class elements now contain language dependend attributes instead
of having a copy of all content class elements for every language
- Functionality related to the server manager has been extracted from
ISession and moved into a new IServerManager interface
- Preliminary authentication package support has been removed and
will be replaced by a fully fleged long term supported solution in one of the next releases