# Product Refresh Dates

{% hint style="info" %}
The information supplied here is replicated in full on the [Product Refresh Dates](https://docs.os.uk/os-downloads/resources/product-refresh-dates) page, alongside publication information for all of our other Premium and OpenData products.
{% endhint %}

The table below lists our future schedule of extraction and publication dates for OS MasterMap Topography Layer. We aim to keep this schedule up to date, but you should treat these dates as a guide only as they are subject to change. The extraction date will be confirmed on the publication date.​

Please note, these dates only apply to bespoke polygons, area of interest (AOI) orders and national sets.

| Publication Date  | Extraction Date  |
| ----------------- | ---------------- |
| 22 June 2026      | 04 June 2026     |
| 03 August 2026    | 16 July 2026     |
| 14 September 2026 | 27 August 2026   |
| 26 October 2026   | 08 October 2026  |
| 07 December 2026  | 19 November 2026 |
| 18 January 2027   | 24 December 2026 |
| 01 March 2027     | 11 February 2027 |
| 12 April 2027     | 25 March 2027    |

The table below lists past publication and extraction dates for OS MasterMap Topography Layer:

| Publication Date  | Extraction Date   |
| ----------------- | ----------------- |
| 11 May 2026       | 23 April 2026     |
| 30 March 2026     | 12 March 2026     |
| 16 February 2026  | 29 January 2026   |
| 06 January 2026   | 11 December 2025  |
| 24 November 2025  | 06 November 2025  |
| 13 October 2025   | 21 September 2025 |
| 03 September 2025 | 14 August 2025    |
| 30 July 2025      | 10 July 2025      |
| 09 June 2025      | 22 May 2025       |
| 28 April 2025     | 10 April 2025     |
| 17 March 2025     | 27 February 2025  |
| 03 February 2025  | 16 January 2025   |
| 16 December 2024  | 28 November 2024  |
| 04 November 2024  | 17 October 2024   |
| 23 September 2024 | 05 September 2024 |
| 12 August 2024    | 25 July 2024      |


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