Polymarket to Open New CLOB Market-Maker Testing in November, Plans Two Migration Rehearsals

Polymarket VP Josh said on X the team is building a full Rust-based central limit order book (CLOB) to replace the current one, which he called the source of most of the platform's problems. Testing of the full order lifecycle is planned for October, with November bringing a mirror of all production traffic to the new cluster, market-maker testing access, and two full rehearsals before a final cutover, which Josh said should require little to no changes for market makers and developers.