# What changed, and when

> A dated record of changes to Seatcheck pages, figures and rules: what moved, where, and why. The first entry is the opening edition of 13 November 2026.

Source: https://seatcheck.uk/changelog/
Updated: 2026-11-13

One change is recorded so far: the opening edition, dated 13 November 2026. No published figure has changed yet, because no data table has been filled. Source: this site's own written change record. Gap: the 30-day and 90-day summaries stay empty until a figure is first published and later revised.

## Summary for 30 and 90 days

**Changes by period · source: this site's change record · checked 13 November 2026**

| Period | Entries | Figures changed |
|---|---|---|
| Last 30 days | 1 | 0 |
| Last 90 days | 1 | 0 |

**Takeaway:** nothing has been revised yet, because nothing has been published as a figure.

## Entries, newest first

  13 November 2026 · Opening edition The first set of pages was written: the method, the sources and dates page, this changelog, the licence register snapshot, the table, rule and studio snapshots, the regulatory actions summary, and three helper tools. Where: [method](https://seatcheck.uk/how-we-check-operators/) and [data sources](https://seatcheck.uk/data-sources-and-dates/). Reason: first publication. Data tables show Not checked yet until a source has been read and dated.

**Takeaway:** every later entry will name the page, the change and the reason.

## How an entry is written

Each entry has a date, a place, a change and a reason. Where a figure moves, the old and the new values are both shown, with the source reading that caused the move.

Entries are listed newest first and never deleted; a later entry corrects an earlier one.

Errors that readers report are logged too, as set out on the [Corrections](https://seatcheck.uk/corrections/) page. The first table to be filled will be the [licence register snapshot](https://seatcheck.uk/licence-register-snapshot/).

**Takeaway:** a figure never changes without a visible trace.

## FAQ

**What counts as a change worth recording?**

A change to a published figure, a status, a rule in our method, or the meaning of a page. Typing fixes and layout changes are not listed.

**Why does the 30-day summary show nothing changed?**

This is the first edition, and no figure has been published yet. The summary fills in as soon as a figure is published and later revised.

**Where can I see why a figure changed?**

Each entry names the page, the old and the new value where there is one, and the reason, such as a new reading of the source.

**Can I be told when something changes?**

An Atom feed is built from this page. Use it in a feed reader to see new entries as they appear.