Change log
Updates & Corrections
Updated: Mar 2026. This page records meaningful content updates, methodology notes, and corrections made across the site.
Last updated: Mar 2026
How we use this page
- Major page updates are summarized here.
- Material methodology changes are logged here.
- Verified corrections are reflected here after publication.
- Minor copy edits may not receive a separate entry.
When to contact us
- If you see a stale or broken official source.
- If a page misstates a program, policy, or quote-validation step.
- If the estimator behaves unexpectedly.
- If a page needs accessibility improvements.
Recent updates
Mar 2026
Expanded trust and methodology documentation across the site and added a dedicated methodology page.
Feb 2026
Expanded state planning guides and improved quote-validation workflows.
Jan 2026
Refreshed annual planning guidance and estimator language for 2026 conditions.
Methodology notes
- Mar 2026: clarified how production indexing and transparency pages are handled.
- Feb 2026: no material formula changes logged.
- Jan 2026: updated annual planning-language assumptions.
Corrections log
- No material corrections logged for Mar 2026 at this time.
- Future verified corrections will be summarized here with affected page references.