Each entry is a contract revision of the Truvo API. Versions and changes explains how a request names its revision in Truvo-Version and what counts as a breaking change.
Pre-release revision
2026-09-26 is the pre-release ID of the Truvo API contract. Every request to an API operation sends it in the Truvo-Version header, and each answer names it there too. Webhook events have no revision.
The first public revision gets its own ID when the REST API opens to outside developers, and the ID format may change before then. From then on, Truvo stops serving the pre-release ID 2026-09-26.