Another great update to the Microsoft CRM 4.0 SDK.  This update was actually released on October 1st, 2008:

http://www.microsoft.com/downloads/details.aspx?FamilyID=82E632A7-FAF9-41E0-8EC1-A2662AAE9DFB&displaylang=en

Release
New and updated topics
Description of changes

Version 4.0.7 September 2008
Added documentation for bug 35907.

importjob Class
Added new reference topics that describe importjob class and the class properties.

Import Job Entity Capabilities
Added a new topic describing the capabilities of import job entity.

Using the Import Job Entity to Track Import Progress
Added new topics that describe how to start, monitor the progress, retrieve and interpret the results of the import operation that imports entity customizations and translations.

Default Privileges Required
Added a new topic that lists the default privileges you must add to a custom security role. Also added this note to Role Entity Capabilities.

Microsoft.Crm.Tools.Email.Providers Namespace
Added documentation for the classes and enumerations in the Microsoft.Crm.Tools.Email.Providers namespace.

Exception Handling Behavior
Error Handling in Plug-ins

Logging and Tracing
Added text  that indicates which server the event log entry is written to.

Dependency and Execution Order
Fixed a bug in regarding the sequence that asynchronous operations are executed.

pluginassembly.version Property
Added text on how to obtain the version number according to standard .NET practices.

Execution of Microsoft Dynamics CRM 3.0 Callouts
Added a note to indicate that the onerror subscription attribute in the v3.0 callout configuration file is not supported under v4.0.

Programming Reference: Microsoft.Crm.Sdk.dll
Added reference documentation.

Enjoy,