About iPhone OS 3.0 Problem

I heard a news ago few days.
news is like below.
--------------------------------------------------
All apps must be compatible woth iPhone OS 3.0.
Existing apps in the App Store should already run on iPhone OS 3.0 without modification, but you should test your existing apps woth iPhone OS 3.0 to ensure there are no compatibility issues.
--------------------------------------------------
Does EDGELIB Engine have solution this problem?
(iPhone OS 3.0 compatibility problem)
news is like below.
--------------------------------------------------
All apps must be compatible woth iPhone OS 3.0.
Existing apps in the App Store should already run on iPhone OS 3.0 without modification, but you should test your existing apps woth iPhone OS 3.0 to ensure there are no compatibility issues.
--------------------------------------------------
Does EDGELIB Engine have solution this problem?
(iPhone OS 3.0 compatibility problem)