Difference between marketplace 1 and marketplace 2

What is the difference between blur marketplace 1 and marketplace 2 contract? Was there some kinda protocol upgrade or it’s just

1: Blur.io: Marketplace | Address 0x000000000000ad05ccc4f10045630fb830b95127 | Etherscan
2: Blur.io: Marketplace 2 | Address 0x39da41747a83aee658334415666f3ef92dd0d541 | Etherscan