Reference / Substantive change log

Substantive updates to this site.

Reverse-chronological log of substantive updates. Each entry states the date, the page touched, what changed, and why. No cosmetic freshness updates. The site is not republished because a calendar quarter ended.

2026-04-25

Site launch

Initial publication of the cost reference

First publication. 16 pages live: 13 content pages, methodology, FAQ, this changelog. Cost ranges sourced as of April 2026 from auditor disclosures, GRC platform pricing pages, and buyer-reported figures.

The full sourcing methodology, including update triggers and source list, is on the methodology page.