Ethereum’s Layer 2 scaling solution Optimism plans to release its preliminary mainnet on January 15 – The Block Crypto January 4, 2021 Newsfeeds.media Ethereum’s Layer 2 scaling solution Optimism plans to release its preliminary mainnet on January 15 We’re sorry but www.theblockcrypto.com doesn’t work properly without JavaScript enabled. Please enable it to continue. Source Share this:TweetMorePrintShare on TumblrPocketTelegramWhatsApp