Coinbase-developed Ethereum layer-2 network Base will move away from the Optimism Superchain ecosystem and transition to an independent stack, The Block reported on Feb. 18. Base aims to reduce reliance on the OP Stack and external services such as Flashbots by building a self-operated integrated solution. The change is also expected to alter its security setup, including a Base security council and additional independent signers.

Optimism governance approved a buyback plan linking OP tokens directly to Superchain economics, CoinDesk reported on Jan. 28. The proposal passed with 84.4 percent support and OP fell slightly after the decision. Under the plan, the Optimism Foundation will use 50 percent of Superchain sequencer net revenue for 12 months to buy back OP, with the remainder used for ecosystem support and operations.