From Aave v3 Source Code we know that Aave collects FlashLoan Fees from borrowers when they return the loaned amount plus a premium fee at the end of the transaction block. This premium fee consists of a portion sent to the protocol treasury (i.e., _flashLoanPremiumToProtocol) and is expressed in bps. By reading the smart contract using json I managed to obtain the current value of _flashLoanPremiumToProtocol which is 4 bps (or 0.04%) of the premium total (i.e., _flashLoanPremiumTotal), however I am also interested in knowing any historical updates of this value - is there any way which I could obtain this? From Aave documentation we know that _flashLoanPremiumToProtocol was initialised at 0, I would therefore like to know the journey between 0 (the starting value) and 4 (the current value) bps.
Also, in the Aave v2 Source Code there’s only _flashLoanPremiumTotal, does it mean that Aave v2 doesn’t allocate any portion of the flashloan fees to the protocol treasury like how v3 does?
Many thanks in advance for advising!