Release Statuses (BOR) 
The following release statuses exist for object types and object type components:
You cannot call modeled object types/object type components at runtime.
Implemented object types/object type components are either in the test phase or are only used internally. You can call and test them at runtime. Implementation may not yet be stable.
Released object types/object type components are released for use. You can call them at runtime. Any enhancements made by SAP to released object types and object type components are upward-compatible.
Note
You can only release object types and object type components if the object type is in a development class that is relevant for delivery.
You can only release object type components if the object type is released.
Obsolete object types/object type components show that the functions are being discontinued and replaced with other functions that are incompatible.
Object types or object type components being discontinued and designated by SAP as obsolete are still supported in the change release and the next release. The old functions and the new functions are available in parallel for this period.
Incompatible changes are included by SAP in a central release note.