# Immutable Chain Plans Switch to OP Stack Framework in Mid-2027

By [The BSCN Debrief](https://paragraph.com/@bscnalpha), 2026-11-06

bsc news brief, crypto news

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Immutable Chain will move from its custom Geth-based infrastructure to Optimism's OP Stack framework by mid-2027. The transition will cut block production time in half to one second and bring the network into the Optimism Superchain. Users will see their accounts, balances and contracts transferred automatically with no action required.

The upgrade trades slightly higher transaction costs and a brief production halt during migration for faster maintenance cycles and quicker access to protocol improvements. Immutable Chain has handled nearly 250 million transactions across more than 18 million wallets. The shift continues the company's infrastructure consolidation after merging Immutable X and Immutable zkEVM.

**Read the full story on BSC News:** [Immutable Chain to Migrate to Optimism's OP Stack by Mid-2027, Halving Block Time to One Second](https://bsc.news/news/immutable-chain-op-stack-migration?utm_source=paragraph&utm_medium=brief&utm_campaign=article_wire)

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*Originally published on [The BSCN Debrief](https://paragraph.com/@bscnalpha/immutable-chain-plans-switch-to-op-stack-framework-in-mid)*