Set the compatibility level to validate mappings, mapplets, and logical data object models against a PowerCenter release. If you select none, the Developer tool skips release compatibility validation when you validate an object.
Click
Edit
Compatibility Level
.
Select the compatibility level.
The Developer tool places a dot next to the selected compatibility level in the menu. The compatibility level applies to all mappings, mapplets, and logical data object models you can view in the Developer tool.