Record changelog

Every change to the record that changes a page, a price, a date or a schema stamp. The change date is the date in the visible stamp, the schema and the sitemap.

Newest first.
Date	Change
2026-10-22	Record first built from the ISO record, the OBP free preview, the public sample of the DIS and the public sample of the 2021 edition.

What a change moves

A change to the record moves the visible Last updated line, the dateModified value and the sitemap lastmod. The watch email carries the field, the old value and the new one.