apollo-compiler@1.33.0

1.33.0 - 2026-09-03

Features

• Validate @defer directive usage - duckki, pull/1069

  Adds validation for the @defer rules from the GraphQL Defer & Stream draft
  (graphql-spec#1110). apollo-compiler previously had no @defer validation,
  so operations the spec forbids passed silently.

  Three rules are validated, matching graphql-js's specifiedRules:

  • Every @defer(label:) value must be a static string (not a variable) and
    unique across the document.
  • @defer is not allowed on root selections of mutation or subscription
    operations.
  • Inside a subscription, any @defer not statically removed by
    @skip/@include must be disable-able via an if argument set to false
    or a variable.

  @defer is not a built-in directive in apollo-compiler, so a schema using it
  must declare the directive. @stream is out of scope.

Fixes

• Validate that root operations use different types - tninesling, pull/1071

  The GraphQL spec requires the query, mutation, and subscription root
  operations of a schema to use distinct Object types. Schemas that reused a
  type across root operations previously validated successfully; they are now
  rejected.

Maintenance

• Update serial_test dev-dependency to v4 - pull/1073

  Dev-dependency only; no effect on library consumers. Note that building the
  apollo-rs test suite now requires rustc 1.93.1 or newer.