What changed, and when

Every change to the figures behind this site and every study published, newest first — 53 entries, of which 33 moved data rather than adding writing. The current figures were last reviewed .

This page exists because a number is worth more when you can see whether it has moved. If you are citing a figure from here, this is where to check whether the version you quoted is the version now on the site. The list is generated from the repository history rather than kept by hand, so it cannot quietly omit anything.

What is due next

The edition of each upstream source this site currently carries, and when the publisher usually issues the next one. Those dates are estimates of someone else’s schedule — “due” means it is worth going to look, not that a newer edition certainly exists.

SourceCarryingCadenceNext expected
Census ACS 5-yearUS Census / MAPC2019–2023Annual2025-12-31 Due
IPEDS college directoryUS Dept. of Education2023Annual2026-01-31 Due
HUD Small Area Fair Market RentsHUDFY2026Annual2026-09-30
DESE school resultsMassachusetts DESE2025–26 reportsAnnual2026-10-31
Property tax ratesMunicipal assessors / DORFY2026Annual2027-01-31
Zillow ZHVI calibrationZillow Researchmid-2026Monthly2027-01-31
Licensed child care providersMA EEC via the Education-to-Career hubAugust 2026 pullMonthly2027-02-28
Municipal budgets (Schedule A)MA DLSFY2025Annual2027-03-31

What has changed

August 2026

July 2026

Generated from the project’s own commit history with npm run changelog. Entries covering refactors, styling and copy edits are left out — this records what happened to the data and the analysis, not to the code. Sources for every figure are in the methodology.

Download the data →