Release notes for 527

Functions in TestService will no longer accept restricted instances when called from scripts.

Scripts will not be able to set reference properties to restricted instances, like those in CoreGui.

Event connections will not fire if any Instance args are restricted instances, like those under CoreGui. This mainly affects DescendantAdded. A side effect is that the event connection will be skipped even if the argument is not used.

The ClassName of the PlaneConstraint has been changed from ClassName=Plane to ClassName=PlaneConstraint. Use of ClassName=Plane has been deprecated.

The Luau type checker now permits equality operations on unions when at least one element of a side has the same metatable as the other side.

the class security check will be used when assigning reference properties from scripts. This will prevent CoreGui and descendants from being assign to reference properties from scripts. CoreGui is at plugin level so plugins should not be affected.

This ticket fixes a crash that occurs when a script that has a logpoint in it while debugged is deleted during the debugging session.

Fixed a problem that when two attributes have the same name and bool and number type respectively on two parts, the property item is not correctly reflecting the type when selecting them.