Topo50 release notes and update history

Check our release notes for the latest changes and updates for the Topo50 map series and datasets. You can also read the update history for Topo50 map sheets.

Latest release note

Since September 2012, Toitū Te Whenua has been providing documents detailing changes to data format such as Schema Changes.

Our latest release note for the Topo50 can be viewed at:

November 2023 Topo50 release notes

To view our previous release notes, contact the Topo team at

Topo50 map sheet updates

Topo50 map sheets are updated based on many criteria including the availability of new aerial imagery, significant change in the topography and when the sheet was last updated.

Updates since 2003

Since June 2003, map sheets have been updated according to the Topo50 map extents. To find out when a particular sheet was last updated, check the “available since” column of the “Topo50 Sheet History” spreadsheet (attached below).

Updates before 2003

Before June 2003, map sheets were updated according to the NZMS260 map extents. This document (attached below) compares the NZMS260 map sheets and when they were updated with the map sheets for Topo50, by overlaying the extents for the two series.