December 2025 Changelog

Basis Theory’s December platform updates introduce customer-managed merchant certificates for Apple Pay and Google Pay, allowing businesses to retain existing certificate setups, avoid migration disruption, and support more than Apple’s 99-domain shared-certificate limit through new APIs, SDK capabilities, and documentation. Elements now performs progressively refined client-side BIN lookups as cardholders enter additional digits, improving real-time identification of card brands, types, and issuers, supporting payment-routing decisions, and helping merchants meet EU co-branding requirements. The company is also moving Test Tenants to an isolated environment by March 30, 2026, requiring customers to switch test API calls to api.test.basistheory.com, allowlist new IP addresses, and support a revised webhook signature header, while noting that Test Tenants remain behaviorally aligned with production but are not PCI compliant and must not contain live consumer data. Finally, fixes in specified Web Elements, React, and React Native SDK versions correct card-editing validation so pre-populated token data triggers validation properly and returns accurate field states.

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