After upgrading to Bora 2.0, the blockchain shifted from a proof-of-authority to a PBFT consensus mechanism, addressing issues seen in other consensus mechanisms like proof-of-stake and proof-of-work. Bora's design allows for limitless expansion, enabling the creation of additional blockchains atop the core layer blockchain, which acts as the transaction settlement layer. This means that each independent side chain on Bora can potentially handle up to 2,200 transactions per second, opening up opportunities for various industries beyond gaming to leverage the platform.