The Microsoft Dynamics CRM Sustained Engineering team has just released a hotfix to make the Microsoft Dynamics CRM 3.0 BizTalk Adaptor compatible with 4.0.

This hotfix allows the existing CRM 3.0 BizTalk Adaptor to function with Microsoft Dynamics CRM 4.0 with the same capabilities that it had for Microsoft Dynamics CRM 3.0.

The full CRM 4.0 BizTalk adaptor that will support the broader 4.0 functionality (such as multi-tenancy) is in the planning stages with an expected release in upcoming months.

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