This blog post shares more about how we are thinking about decentralization at OP Labs as we support the ecosystem engineers building out a fault proof system for the OP Stack and the Optimism Collective as it establishes its first security council.

On Nov. 14 at 17:00 UTC, Superchain testnets will upgrade to Canyon! This blog post outlines all the changes coming to the Optimism ecosystem in the wake of this protocol upgrade.

On June 6, 2023, OP Mainnet upgraded to Bedrock, and the entire migration process was designed to be verifiable and reproducible.

This blog post delves into the intricacies of account abstraction, ERC-4337, and the benefits of a novel RPC endpoint that is being built to make it easier for bundlers to succeed.

Optimism does a lot of stuff on-chain. Managing and monitoring the many on-chain interactions required to keep a system like this running can become a bit of a headache. This isn’t an impossible problem — but it’s enough of nuisance that it’s worth automating.

Today, we’re extremely excited to formally introduce Cannon to the world. Cannon is OP Mainnet’s next-gen fault proof. Its initial implementation by geohot became the first public fault proof implementation that can run an EVM-equivalent L2. Oh, and it also enables the theoretical minimum calldata gas costs. From

Solidity devs: meet Smock v2 [https://github.com/defi-wonderland/smock]. The S olidity mocking library. A collaboration between Optimism [https://twitter.com/optimismPBC] and the fantastic team over at DeFi Wonderland [https://twitter.com/DeFi_Wonderland]. Smart contract testing has historically been… hard? If not hard, then just confusing. Way

Dearest Etherscan, How to describe what you mean to us? Let us count the ways. You are… * The stable provider of knowledge. * The humble watcher of the realm. * The telescope with which we marvel upon the decentralized heavens. * The bedrock on which the house of DeFi stands. * The quiet knight

This is the story of our experience looking into a bug that caused our Optimistic Ethereum testnet deployment [https://community.optimism.io/docs/developers/networks.html#optimistic-kovan] to stop accepting new L1 ⇒ L2 deposits for a period of several days in the early days of June 2021. For some context,