Score changes
Every change to a published rating is journaled: the old and new score, what triggered the rescore, and the methodology version that produced it. A rating that can change without a record is an opinion; this page is what makes ours a measurement. The 60 most recent changes are shown — the full journal is available programmatically via the partner API.
Numeric ratings update freely. Displayed letter grades are damped — a letter only changes when a rescore clears its band boundary by more than 2 points, or the same letter persists across two consecutive rescores (methodology v1.3, Rating letters). Letter transitions shown here are derived from the raw scores.
No recorded changes yet.
How to read this
A first score row is a title entering the catalog, not a change. Methodology-version transitions can move many scores at once — the methodology changelog documents what changed and why in each revision. Rescores triggered by adversarial debate average two AI positions arguing the highest and lowest defensible scores; editorial review rows were changed by a human reviewer.