The November 2021 SEC Release, due to go live on 4 November 2021, will contain DCC System impacting changes arising from SEC Modification Proposals. The following modifications are currently in scope:
| Modification Number | Modification Name | Stage | Implementation Date | Last Updated |
|---|---|---|---|---|
| MP180 | Market-wide Half-Hourly Settlement Implementation | Implemented | 04/11/2021 | 11/08/2025 |
| MP164 | November 2021 SEC Release supporting changes | Implemented | 04/11/2021 | 27/03/2025 |
| MP157 | Removal of DUIS v1.1 and v2.0 | Implemented | 04/11/2021 | 27/03/2025 |
| MP158 | Incorporation of multiple Issue Resolution Proposals into the SEC – Batch 5 | Implemented | 04/11/2021 | 27/03/2025 |
| MP150 | Removing Table 28c from the GBCS | Implemented | 04/11/2021 | 27/03/2025 |
| MP138 | DCC Service Testing in ETAD | Implemented | 04/11/2021 | 30/01/2025 |
| MP105 | Sending SR11.2 to Devices in Suspended State | Implemented | 04/11/2021 | 03/03/2025 |
| MP090 | Incorporation of Non GBCS Non-Mandated Alerts into the SEC | Implemented | 04/11/2021 | 08/12/2025 |
| MP077 | DCC Service Flagging | Implemented | 04/11/2021 | 27/03/2025 |
| SECMP0007 | Firmware updates to IHDs and PPMIDs | Implemented | 04/11/2021 | 14/02/2025 |