OP Sepolia Testnet Will Be Launched On March 19

Key Points:

• OP Labs will upgrade the OP Sepolia testnet with new fault proofs.
• Withdrawals between OP Sepolia and Sepolia now take seven days due to integration changes.
• The retirement of OP Goerli testnet signals Optimism’s focus on OP Sepolia for enhanced testing and support.

OP Labs has announced a significant upgrade to the OP Sepolia testnet, scheduled for release on March 19.

Read more: Top 5 Projects Are Using The Optimism OP Stack

OP Stack Platform Upgrade Introduces Fault Proofs

This upgrade introduces unauthorized OP Stack fault proofs, necessitating logic changes for developers utilizing bridges, centralized exchanges, and custom withdrawal solutions on the OP Stack platform. These changes are deemed necessary due to the introduction of destructive alterations.

One notable adjustment resulting from this upgrade is the extension of withdrawal processing time between OP Sepolia and Sepolia, now requiring seven days due to fault-tolerant integration. Withdrawals between OP Sepolia and Sepolia will no longer be instantaneous, as they will now utilize the Fault Proofs mechanism.

The OP Stack fault-tolerant system comprises three key elements: the Fault-proof Program (FPP), the Fault-proof Virtual Machine (FPVM), and the Dispute Resolution Game Protocol.

Developers Urged to Update Logic Ahead of OP Sepolia Testnet Release

Developers are urged to promptly update withdrawal logic to accommodate these changes before the OP Sepolia testnet release, which is slated for Tuesday.

In related news, OP Labs previously announced the retirement of the OP Goerli testnet on March 7th, signaling a shift towards a more robust testing environment. The transition process to OP Sepolia has been underway for several months, with the company working closely with its partners to facilitate a smooth migration.

The retirement of OP Goerli signifies a significant milestone for Optimism, reflecting its commitment to enhancing testing capabilities. The OP Sepolia testnet offers enhanced features and support, promising a more seamless experience for both developers and users. This transition is anticipated to foster overall development and expansion within the Optimism ecosystem.