Review the BizCalcAtlas changelog for material updates to calculators, formulas, source data, policies, accessibility, site features, and infrastructure.
September 22, 2026 — trust, privacy, and site-quality update
- Added a working contact form with spam protection and delivery-status feedback.
- Added Cookie Policy, Privacy Choices, and Security & Vulnerability Disclosure.
- Expanded Privacy Policy, Terms of Use, Calculator Disclaimer, Accessibility, Editorial Standards, Sources & References, and Corrections Policy.
- Added complete Open Graph and Twitter sharing metadata, a new site logo, favicon set, and social sharing image.
- Added alt text to site logos and improved heading semantics, including FAQ questions marked as H3 headings.
- Changed calculators so example inputs show a calculated result immediately on page load.
- Tightened SEO metadata limits so titles stay at or below 60 characters and descriptions at or below 160 characters.
- Explicitly allowed OAI-SearchBot and Google-Extended, added a post-deploy AI crawler audit, and published machine-readable BizCalcAtlas fee, formula, and append-only fee-history reference datasets.
September 17, 2026 — audited launch content package
The current calculator and guide architecture was generated from the audited September 17, 2026 implementation package, including formulas, test vectors, source records, internal links, SEO briefs, and launch-route decisions.
What appears here
This page records material public changes to formulas, dynamic data, legal or editorial policies, accessibility, privacy, security, and major site functionality. Routine dependency updates, formatting adjustments, and minor copy edits may be omitted.
Related pages
For source-review rules see Sources & References. For confirmed errors see the Corrections Policy. For calculation design see the Methodology.