In case you missed it, we've just released a bunch of great new documentation, videos, guides, eBooks, developer tools, and resources for the Microsoft Dynamics CRM Online Fall ’13 and Microsoft Dynamics CRM 2013 releases!
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SDK for Microsoft Dynamics CRM 2013 and Microsoft Dynamics CRM Online - link
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Implementation Guide for Microsoft Dynamics CRM 2013 and Microsoft Dynamics CRM Online - link
Information for the enterprise
CODE. All things are OK.
But How about libraries developped with SDK 2011?
I read someplace "CRM 2011 SDK is tool no longer required"
Thank you for your answers?