API version pinning with Speechify-Version
API version pinning with Speechify-Version
The API now supports date-based version pinning with the Speechify-Version request header.
- Current version:
2026-06-25 - Header format:
YYYY-MM-DD - Resolution order: request header, workspace default, oldest supported version
- Migration path: official SDKs pin their build-date version automatically; raw HTTP callers should send
Speechify-Versionexplicitly.
No existing TTS response shape changed in this release. Future breaking wire-format changes will publish a dated changelog entry with the legacy shape, the new shape, and the sunset date.