Platform SDK Support Policy

The iOS, Android, and JavaScript SDKs use Semantic Versioning. A breaking API change will result in an increment in the major version number of the SDK. Twilio will support SDK version N-1 for 12 months after the first GA release of version N. For example, version 3.x is supported for 12 months after the GA release of version 4.0. The previous major version will only receive fixes for critical issues until the end of the 12 months, at which point the SDK version is no longer supported.