In November, Bitcoin is due for its first big upgrade in several years. Dubbed, Taproot , the changes will make it easier for smart contracts to be created on the protocol

Bitcoin fan Jack Dorsey, the founder of Twitter and payments company Square, is keen to take advantage. In July, he announced that Square is working on a DeFi platform to integrate Bitcoin, and dubbed TBD

But all the activity has also captured the attention of regulators. They have raised concerns about the security and accountability of projects, and look to be doubling down on their vigilance of the sizzling hot DeFi space