If you use LINQ queries with the OrganizationServiceContext then understanding MergeOptions is vital. At the end of this post I describe the most common 'gotcha' that comes from not fully understanding this setting.
The OrganizationServiceContext implements a version of the 'Unit of Work' pattern (... [More]
Although at the time of writing UR12 is not yet released - I was checking though the changes in the latest SDK documentation.
In addition to the Ribbon Workbench being listed (yay!) I noticed the following statement about the getServerUrl function
"Deprecated. Use getClientUrl instead. This method... [More]
Nulls are handled differently by the SDK Web services:
Using the CRM 4.0 SDK webservice and pipeline context, you could always exclude an attribute from an update by setting it to null. This has now changed:
entity.attributename = null;