Compatibility and Deprecations

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This page exists so mailglass_admin HexDocs can surface the 1.x compatibility policy without duplicating the policy text inside the admin package.

The canonical guide lives in the repo-root Mailglass docs:

Use that guide for:

  • the stable lane versus compatibility lane model
  • patch, minor, and major release guarantees
  • warnings-as-errors guidance
  • the runtime and sibling-package support matrix
  • the current matched-release policy between mailglass and mailglass_admin

This admin-local page is intentionally a pointer page only. The admin package's separate surface inventory still lives in docs/api_stability.md.