Rate Changelog
We track every carrier update and federal notice. Below is the historical audit trail of verified rate changes in our database.
Current
June 19, 2026 Version 2026-Q2
Initial DimMath launch rates. Dimensional weight divisors verified against 2026 service guides: UPS (139/166), FedEx (139/166), USPS (166), and DHL (139). Amazon FBA fees updated to October 2025 schedule.
Version 2026-Q1
January 15, 2026USPS annual rate update - Priority Mail Cubic tiers confirmed unchanged for 2026 commercial pricing.