EmailgisticsAPI
Getting started

Versioning

API stability commitments and how breaking changes are handled.

The API is at v1. We make changes within v1 only when they are additive and non-breaking.

What we treat as non-breaking

You can rely on us doing any of the following without notice:

  • Adding new endpoints.
  • Adding new optional fields to request bodies and query strings.
  • Adding new fields to response bodies, including inside existing objects. Your parser must ignore unknown fields.
  • Adding new values to enum-style fields — for example, a new webhook action type. Your code must tolerate unknown values.

What we treat as breaking

We won’t do any of the following silently. A breaking change requires a new version (v2):

  • Removing or renaming an endpoint, field, parameter, or enum value.
  • Changing a field’s type or semantics.
  • Tightening validation in a way that previously valid requests start failing.

Deprecation policy

When we plan to remove or break something:

  1. We announce the deprecation in the changelog and, where practical, in the response itself (for example, a Deprecation HTTP header).
  2. The deprecated behavior keeps working for a documented minimum window.
  3. After the window ends, the deprecated behavior is removed in the next major version.

We don’t rewrite history within a major version. Once v1 is stable, the contract isn’t tightened retroactively.

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