> For the complete documentation index, see [llms.txt](https://docs.os.uk/os-downloads/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.os.uk/os-downloads/products/buildings-and-infrastructure-portfolio/os-open-linked-identifiers/release-notes/august-2026-epoch-54.md).

# August 2026 – Epoch 54

No issues were identified in this release.

## Feature count

The feature count for Epoch 54 is as follows:

| Feature                                  | Feature count   |
| ---------------------------------------- | --------------- |
| BLPU\_UPRN\_ROADLINK\_TOID\_9            | 41 570 075      |
| BLPU\_UPRN\_STREET\_USRN\_11             | 42 358 253      |
| BLPU\_UPRN\_TOPOGRAPHICAREA\_TOID\_5     | 41 593 454      |
| ORROADLINK\_GUID\_ROADLINK\_TOID\_12     | 6 777 738       |
| ORROADNODE\_GUID\_ROADLINK\_TOID\_13     | 40 901          |
| ROAD\_TOID\_STREET\_USRN\_10             | 1 314 884       |
| ROAD\_TOID\_TOPOGRAPHICAREA\_TOID\_3     | 6 280 523       |
| ROADLINK\_TOID\_ROAD\_TOID\_7            | 6 049 721       |
| ROADLINK\_TOID\_STREET\_USRN\_8          | 9 014 889       |
| ROADLINK\_TOID\_TOPOGRAPHICAREA\_TOID\_2 | 14 687 099      |
| STREET\_USRN\_TOPOGRAPHICAREA\_TOID\_4   | 9 535 812       |
| **Grand total**                          | **179 223 349** |

## Next release

The next release of OS Open Linked Identifiers, Epoch 55, is scheduled for **17 September 2026**.


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