# Release notes for D2K Companies House Lookup

What is new, changed and fixed in each version of D2K Companies House Lookup
for Microsoft Dynamics 365 Business Central, newest first. Business Central
online installs updates from Microsoft AppSource for you; the version you have
is shown on the **Extension Management** page.

## Version 1.0.43.0

Released: 19 October 2026.

The first release on Microsoft AppSource. It needs Business Central online,
version 28 or later.

### What it does

- **Look up a company** by registration number or by name, straight from the
  UK Companies House register. See [Look up a company](https://docs.d2k.uk/companies-house-lookup/look-up-a-company).
- **Create a customer, vendor or contact from a company number**, with the
  registered name and registered office filled in and your own template
  applied. See [Create a customer, vendor or contact from a company number](https://docs.d2k.uk/companies-house-lookup/create-from-companies-house).
- **Link the customers, vendors and contacts you already have** to the
  register, one at a time or many at once, and see each company's status on
  its card. See [Customers, vendors and contacts](https://docs.d2k.uk/companies-house-lookup/customers-vendors-and-contacts).
- **Company snapshots** keep what was fetched, so opening the same company
  twice does not cost two calls. See [Company snapshots](https://docs.d2k.uk/companies-house-lookup/company-snapshots).
- **Officers and filings** for any company, with filed documents to download
  as PDF. See [Company officers](https://docs.d2k.uk/companies-house-lookup/company-officers) and [Company filings](https://docs.d2k.uk/companies-house-lookup/company-filings).
- **Filing watches** check chosen companies every hour and record new filings
  and changes of status. See [Filing watches](https://docs.d2k.uk/companies-house-lookup/filing-watches).
- **The Companies House Role Centre** shows what needs attention. See [The Companies House Role Centre](https://docs.d2k.uk/companies-house-lookup/companies-house-role-centre).
- **An assisted setup guide** takes you from a free Companies House API key to
  a working connection. See [Set up Companies House Lookup](https://docs.d2k.uk/companies-house-lookup/companies-house-setup).

### For developers

- A supported API for extensions that depend on the app: an interface for
  lookups, three integration events, filing watches, filed documents and
  read access to the data. From this version the app follows semantic
  versioning. See [Building on D2K Companies House Lookup](https://docs.d2k.uk/companies-house-lookup/developers).

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Source: https://docs.d2k.uk/companies-house-lookup/release-notes
Last updated: 2026-10-19