> 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/june-2025-epoch-44.md).

# June 2025 – Epoch 44

No issues were identified in this release.

## Feature count

The feature count for Epoch 44 is as follows:

| Feature                                  | Feature count |
| ---------------------------------------- | ------------- |
| BLPU\_UPRN\_ROADLINK\_TOID\_9            | 41 208 598    |
| BLPU\_UPRN\_STREET\_USRN\_11             | 41 919 107    |
| BLPU\_UPRN\_TOPOGRAPHICAREA\_TOID\_5     | 41 197 222    |
| ORROADLINK\_GUID\_ROADLINK\_TOID\_12     | 6 751 353     |
| ORROADNODE\_GUID\_ROADLINK\_TOID\_13     | 40 821        |
| ROAD\_TOID\_STREET\_USRN\_10             | 1 304 906     |
| ROAD\_TOID\_TOPOGRAPHICAREA\_TOID\_3     | 6 234 906     |
| ROADLINK\_TOID\_ROAD\_TOID\_7            | 6 005 010     |
| ROADLINK\_TOID\_STREET\_USRN\_8          | 8 933 469     |
| ROADLINK\_TOID\_TOPOGRAPHICAREA\_TOID\_2 | 14 560 902    |
| STREET\_USRN\_TOPOGRAPHICAREA\_TOID\_4   | 9 467 302     |
| **Grand Total**                          | 177 623 596   |

## Next release

The next release of OS Open Linked Identifiers, Epoch 45, is scheduled for **31 July 2025**.


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