This zip file contains the Code History Database for the United Kingdom as at 31st December 2025. (File size: 52.5 MB)To download the zip file click the Download button.Updated GeographiesUpdates in England to: Civil Parishes (E04), Electoral Wards/Divisions (E05), Sub Integrated Care Board Locations (E38), Non-Civil Parished Areas (E43), Development Corporations (E51), Integrated Care Boards (E54), Cancer Alliances (E56), County Electoral Divisions (E58), Local Planning Authorities (E60), Built Up Areas (E63), Built Up Areas (K08).Updates in Scotland to: Scottish Parliamentary Constituencies (S16), Scottish Parliamentary Regions (S17), Built Up Areas (S45).Updates in Wales to: Communities (W04), Senedd Constituencies (W09), Senedd Regions abolished (W10), Built Up Areas (W45).Information table updatedSI Details table updated