# Changelog of UK Postcode & Address Lookup — Batch to 100 + Geolocation (`sian.agency/uk-postcode-address-lookup`) Actor

- **URL**: https://apify.com/sian.agency/uk-postcode-address-lookup/changelog.md
- **Full Actor documentation**: https://apify.com/sian.agency/uk-postcode-address-lookup.md

## Changelog

All notable changes to UK Postcode & Address Lookup will be documented in this file.

### 2026-10-14

#### 🛠️ Fixes and a new deprivation field

- **New `imdRank` column.** Every resolved postcode now carries its Index of Multiple Deprivation rank: where its small area sits in its own nation, 1 being the most deprived. The old `imdecile` column was always empty because the data has no decile; it stays in the dataset for existing integrations but is deprecated.
- **Wide search moved to reverse geocoding, where it works.** Reverse geocoding now looks within 2 km of your point by default, and up to 20 km with `wideSearch` on. Rural and coastal points that used to come back empty now resolve.
- **Postcode search is described honestly.** It matches the start of a postcode (SW1A, SW1A 1), not street or town names. A search that matches nothing now says so and suggests what to type.
- **Constituencies use the 2024 boundaries** whenever the record has them.
- **Outcode rows** now list every country, ward and constituency the outcode covers, not just the district.
- **Batch runs drop duplicates** (including the same postcode typed two ways, such as sw1a1aa and SW1A 1AA) before anything is charged.
- **Free-plan cap is enforced before delivery.** Rows past the 25-row free cap are no longer delivered uncharged.
- **A run that fails now shows as failed** and still writes its processing report, with the reason and a fix.
- **New run report**: resolved postcodes you can copy in one click, a table per run, a charges statement and a ready-to-paste retry input for anything that did not resolve.
- **Data attribution** for Ordnance Survey, Royal Mail, National Statistics and NRS data is now in the README and every run report.

#### 💎 User Benefits

- Join deprivation rank, LSOA and MSOA onto your own postcode lists without downloading the national files
- Get an answer for countryside coordinates instead of an empty row
- Pay only for postcodes that resolve; typos, terminated postcodes and empty searches cost nothing

#### 🎯 Use Cases

- Public-sector and charity analysts ranking service users by deprivation
- Field-service and delivery apps turning rural GPS points into postcodes
- Data teams cleaning CRM exports where the same postcode was typed several ways

### 2026-08-16

#### 🎉 UK Postcode & Address Lookup - Launch!

- **Postcode Lookup**: resolve any UK postcode to its full record with lat/lng, district, ward, constituency and ONS areas (UK postcode lookup, postcode finder)
- **Batch to 100**: paste up to 100 postcodes per run and get one clean row each (batch postcode lookup, postcode database export)
- **Autocomplete Search**: partial-postcode search for checkout forms (postcode autocomplete)
- **Reverse Geocoding**: any UK latitude/longitude to its nearest postcode with distance in metres (reverse geocoding UK, postcode to coordinates)
- **Outcode Districts**: district-level geolocation for the first half of a postcode (outcode lookup, UK geolocation API)

#### 💎 User Benefits

- Validate and normalise customer postcodes against the national register, so typos stop causing failed deliveries
- Geocode every customer without hosting Ordnance Survey files yourself
- Join ONS statistics (LSOA, MSOA) onto your own data for demographic analysis
- Pay only for resolved postcodes; invalid and terminated postcodes explain themselves and cost nothing

#### 🎯 Use Cases

- Ecommerce teams validating postcodes at checkout and suggesting postcodes as shoppers type
- Data teams enriching CRM exports with district, ward and constituency fields
- Operations teams geocoding delivery zones and catchments from postcode lists
- Public-sector analysts attaching ONS areas and NHS areas to service data