UPBIT EXCHANGE LAUNCHES ETHEREUM L2

Summary from the TLDR Crypto newsletter

Upbit, the largest South Korean crypto exchange, has launched its Giwa layer 2 on testnet. The layer 2 is built on the OP stack and aims for one-second block times and a friendly user experience. Details about the mainnet launch, ecosystem partners, and explicit purpose of the chain remain unclear, but this is the latest in a flurry of L2 announcements from major entities like Sony and Robinhood.