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1. URLs that do not include a user's id
2. Backward compatibility for URLs that use contain a user's id - they will  continue to work.
3. A reverse lookup function of the opaque URL that can be used to locate a form/flow in a user's account for troubleshooting purposes. This capability is only be available to administrators, tenant administrators and users with the designers or publishers roles in the same tenant.

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Migration Considerations for Live Forms In-house Customers 
 

Changes to Supported Platforms

SQL Server 2008 is no longer supported

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