On a press release, BSC is rebranding to BNB Chain, which stands for Build and Build, in an effort to draw a connection to Binance’s BNB token, the governance token for the protocol.
The BNB Chain will be made up of two parts: BNB Beacon Chain, previously Binance Chain; and BNB Smart Chain, formerly BSC. BSC is compatible with the Ethereum Virtual Machine (EVM), where smart contracts are executed, and serves as a hub to access other blockchains.
If you want to know more about the BNB chain, you can check out my previous post explaining the two: BNB Chain