API Versioning
API Versioning Policy
How we version our API, handle breaking changes, and support migration between versions.
API Versions
v1Current 2025-06
v0 (Beta)Deprecated 2024-12
Versioning Policies
Breaking Changes
Breaking changes are only introduced in new major versions. We provide 12 months notice before deprecation.
Deprecation Timeline
Deprecated versions receive security patches for 12 months after a new version is released.
Migration Guides
Detailed migration guides are provided for every version upgrade with code examples.
Version Support
The current version is fully supported with new features. Previous versions receive security updates only.
Version Header
Specify the API version using the SignQuick-Version header. If omitted, the latest stable version is used.
SignQuick-Version: 2025-06-01View Full API Reference
Check the API docs for version-specific endpoint documentation.
API Documentation