Polymarket CLOB V2 Bot Migration Checklist

A practical migration checklist for Polymarket trading systems moving to updated CLOB behavior.

Inventory dependencies

List every endpoint, client library, auth flow, order type and parser the bot uses. Pin versions before changing production.

Replay fixtures

Capture representative books, fills and error responses. Run the new adapter against fixtures before connecting it to live credentials.

Order lifecycle

Verify signing, tick sizes, partial fills, cancellation, sequence handling and restart reconciliation. Never assume old identifiers map unchanged.

Safe rollout

Deploy read-only first, then canary with minimal limits. Keep the previous adapter and a kill switch until balances and fills reconcile.

TierZero builds Polymarket market makers and support systems.