Polymarket - Notice history

CLOB maintenance shipping consistency fixes for order queueing tiebreak and cancellation edge cases.

Expected impact:

• Trading intermittent for up to ~1 hour.

• Brief post-only window after restart (2 min) before normal matching resumes.

Post-only: only orders explicitly set with postOnly: true are accepted. Regular limit orders without the flag, market orders, and any taking liquidity will be rejected. Cancels for existing orders will still go through.

See POST /order API reference for the post-only flag

What to expect:

• Trading intermittent for up to ~1 hour during the window. Orders won't match.

• Post-only window after restart (2 min) before normal matching resumes.

Post-only: only orders explicitly set with postOnly: true and cancellation of open order are accepted. Regular limit orders without the flag, market orders, and any taking liquidity will be rejected.

See POST /order API reference for the post-only flag.

What to expect:

• Trading intermittent for up to ~1 hour during the window. Orders won't match.

• Post-only window after restart (2 min) before normal matching resumes.

Post-only: only orders explicitly set with postOnly: true and cancellation of open order are accepted. Regular limit orders without the flag, market orders, and any taking liquidity will be rejected.

See POST /order API reference for the post-only flag.