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Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer.

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The U.S. healthcare graph AI can cite — every fact carries its source.

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Trust · Methodology changelog

Every methodology bump, on the public record.

Each row in this changelog is one methodology version bump for one source — the date it landed, the version it moved from, the version it moved to, and a plain-language summary. The log is built directly from the Fonteum snapshot store; entries are auto-generated on publication and refined post-hoc with hand-edited prose.

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No methodology changes recorded yet. This page tracks every version bump across every source family. The first row will land the next time a source publishes a snapshot under a new methodology version — typically within one cadence cycle of the source itself releasing.

How to use this page
  • Each entry is an immutable, citeable record of a methodology change — journalists and researchers can pin a citation to a specific version bump on a specific date.
  • For the full Fonteum methodology — sourcing, refresh cadence, claim ceiling, corrections policy — see /methodology. For per-source identity, licensing, and ToS posture see /sources.
  • Entries are also emitted as schema.org BlogPosting items (one per row) plus a DataFeed wrapper for the changelog overall, so AI agents and search engines can read the evolution without scraping the rendered HTML.