Polymarket to rebuild DeFi CLOB system, with end-to-end testing set for October

Polymarket to rebuild DeFi CLOB system, with end-to-end testing set for October

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News Editor
2026-09-28 16:44:31
Polymarket is rebuilding the Rust-based central limit order book, or CLOB, used on its DeFi side, according to Josh Stevens, the company’s vice president. Stevens said the current CLOB is viewed internally as the main source of most of the platform’s technical issues. The upgrade plan sets October as the target for full order-lifecycle testing in a staging environment. That test scope will cover trading, settlement, on-chain interactions, the indexer, and the notification flow tied to the matching engine. In November, the team plans to mirror all production traffic to a new trading cluster for comparison. Polymarket also intends to open testing access to market makers during that phase. At the same time, the company will decide on the final migration cutover plan and run two full rehearsals before any switch is made.

Polymarket is rebuilding the Rust-based central limit order book, or CLOB, used for its DeFi operations, according to Josh Stevens, the platform’s vice president. He said the existing CLOB is considered the main source of most of the current technical problems.

The team plans to complete full order-lifecycle testing in a staging environment in October. That work will cover trading, settlement, on-chain interactions, the indexer, and the matching engine’s notification flow.

In November, Polymarket plans to mirror all production traffic to a new trading cluster for side-by-side comparison and open test access to market makers. The team also plans to finalize the migration cutover approach and conduct two full rehearsals.

This article was originally published by Bit.Fan. For more cryptocurrency news and market insights, visit www.bit.fan.
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