Postcodes.io 19 is out, adding Senedd Cymru constituency fields, a far richer Scottish Postcode Directory, and faster bulk lookups.

<a href="https://postcodes.io">Postcodes.io</a> 19 is out, adding Senedd Cymru constituency fields, a far richer Scottish Postcode Directory, and faster bulk lookups.
<h2>Details</h2>
<ul>
<li>Welsh Parliament data: Postcode lookups now return official Senedd Cymru constituency fields, with schemas and documentation updated to match</li>
<li>Expanded Scottish coverage: The Scottish Postcode Directory endpoint grows from three fields to over 50 distinct data fields and 20+ administrative codes, including the Scottish Index of Multiple Deprivation, data zones (2001 and 2011), and historical Census Output Areas (1991, 2001, 2011)</li>
<li>Simpler data layer: The database is flattened and denormalised into three master tables: <code>onspd</code>, <code>spd</code>, and <code>osopennames</code></li>
<li>Faster bulk operations: Bulk postcode and reverse-geocoding requests are batched into single SQL queries, with Postgres tuned for read-only workloads using <code>pg_prewarm</code> and partial indexes</li>
</ul>

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Postcodes.io 19 Adds Welsh Parliament and Expanded Scottish Data

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