Submitted by 0xRajeev, also found by adelamo, cmichel and shw_
The contracts use Chainlinks deprecated API latestAnswer(). Such functions might suddenly stop working if Chainlink stopped supporting deprecated APIs.
The impact is that, if the deprecated API stops working, prices cannot be obtained, the protocol stops and contracts have to be redeployed.
Recommend using V3 interface functions.
raymogg (Tracer) confirmed in a separate issue
