JSON Schema 05/08/2026 Billing Trade Details Schema - On Exchange 05/08/2026 Billing Trade Details Schema - Off-Exchange CAT Billing Technical Specifications 11/21/2025 CAT Billing Release Rollout 05/13/2026 Planned Billing Technical Specification Updates 05/13/2026 CAT Billing Known Issues List 05/08/2026 CAT Technical Specifications for Billing Trade Details v1.3 (Clean) Redlined Versions 05/08/2026 CAT Technical Specifications for Billing Trade Details v1.3 (Redlined) Previous Versions 08/19/2025 CAT Technical Specifications for Billing Trade Details v1.2 r2 04/30/2025 CAT Technical Specifications for Billing Trade Details v1.2 r1 03/12/2025 CAT Technical Specifications for Billing Trade Details v1.2 09/24/2024 CAT Technical Specifications for Billing Trade Details v1.1 12/08/2023 CAT Technical Specifications for Billing Trade Details v1.0 r1 11/30/2023 CAT Technical Specifications for Billing Trade Details v1.0