Feature	SQL Server 2000 Behavior	SQL Server Behavior
Browsing	Supports hidden or disabled levels in hierarchies.	Hidden or disabled levels are migrated as visible and enabled levels. Calculations that involve hierarchies that contain such levels might return unexpected results.
Dimension	Supports the option to not include data members in parent-child dimensions.	Data members always exist in parent-child dimensions; data members can no longer be excluded from parent-child dimensions.
Multidimensional Expressions (MDX)	Function: CreateVirtualDimension	Expression will return Error.
MDX	Function: CreatePropertySet	Expression will return Error.
MDX	Statement: With Cache	Accepted syntax, but does nothing.
MDX	Statement: Create Cache	Accepted syntax, but does nothing.
MDX	Calculation precedence rules.	Calculation precedence rules have changed from previous versions of Analysis Services. Because of the above custom rollup, expressions may return different results than with previous versions of Analysis Services.
Security	Supports the option to specify dimension security so that a user can view a top level that is different from the top level of the hierarchy.	Top Level for dimension security is not supported. Members that are secured by using the Top Level setting will be visible after migration.
Other	AutoCommit and AutoRollback in update.	Tries to commit a non-existing transaction fail. In SQL Server 2000 Analysis Services, the Update statement created its own transaction. In SQL Server Analysis Services, it does not.