What is ETH2 on Coinbase?

Can you explain what ETH2 on Coinbase is all about? I've heard some buzz about it but I'm not entirely sure what it entails. Is it a new version of Ethereum? How does it differ from the current Ethereum that we're used to? And most importantly, what benefits does it offer to users like me who are interested in cryptocurrency and finance? I'd appreciate it if you could provide a clear and concise explanation of ETH2 on Coinbase.