Phase 2d
Last Updated: 06/25/2025
| # | Status | Summary | Posted Date | Spec Publish Date | Spec Version | Effective Date - Test | Effective Date - Prod |
|---|---|---|---|---|---|---|---|
1 | New-Open | Add new '24X' value for the destination and senderIMID fields and 'G' for marketCenterID field to support 24X National Exchange. | 06/25/2025 | TBD | 4.1.0 r9 | 08/25/2025 | 09/29/2025 |
Phase 2a/2b
Last Updated: 01/11/2022
| # | Status | Summary | Publish Date | Spec Version |
|---|---|---|---|---|
| N/A as of 01/11/2022 |
Phase 2c
Last Updated: 01/11/2022
| # | Status | Summary | Publish Date | Spec Version |
|---|---|---|---|---|
| 1 | Open | Update section 3.4 to clarify requirements for options prior to Phase 2d outlined in Scenario 3.7.3. | N/A | N/A |
| 2 | Open | Clarify description of solicitationFlag field to be consistent with new FAQ C8. | N/A | N/A |
*Planned Technical Specification Updates are subject to approval by the CAT NMS Plan Operating Committee.