# What changed in @envelop/testing

> 17 changes in @envelop/testing 11 from its official release notes, upgrade guides and advisories: 14 breaking. Each one cited. Sources checked 2026-11-12. HTML: https://unstale.sh/npm/@envelop/testing/

To see which of these apply to a repository, run `npx @unstale/cli init` in it.

## @envelop/testing 11

### Breaking changes

- createGraphQLError is removed; use GraphQLError from graphql instead. (11.0.0) — [release notes](https://github.com/graphql-hive/graphql-yoga/releases/tag/%40envelop/testing%4011.0.0)
- Yoga no longer re-exports DisposableSymbols; import it from @whatwg-node/server. (11.0.0) — [release notes](https://github.com/graphql-hive/graphql-yoga/releases/tag/%40envelop/testing%4011.0.0)
- Yoga no longer re-exports fakePromise; import it from @whatwg-node/promise-helpers. (11.0.0) — [release notes](https://github.com/graphql-hive/graphql-yoga/releases/tag/%40envelop/testing%4011.0.0)
- Yoga no longer re-exports getSchemaCoordinate; import it from @graphql-tools/utils. (11.0.0) — [release notes](https://github.com/graphql-hive/graphql-yoga/releases/tag/%40envelop/testing%4011.0.0)
- The minimum supported GraphQL version is now 16; GraphQL 14 and 15 are no longer supported. (11.0.0) — [release notes](https://github.com/graphql-hive/graphql-yoga/releases/tag/%40envelop/testing%4011.0.0)
- Yoga no longer re-exports handleMaybePromise; import it from @whatwg-node/promise-helpers. (11.0.0) — [release notes](https://github.com/graphql-hive/graphql-yoga/releases/tag/%40envelop/testing%4011.0.0)
- Yoga and @envelop/core utils no longer re-export isPromise; import it from @whatwg-node/promise-helpers. (11.0.0) — [release notes](https://github.com/graphql-hive/graphql-yoga/releases/tag/%40envelop/testing%4011.0.0)
- Yoga and @envelop/core utils no longer re-export mapAsyncIterator; import it from @whatwg-node/promise-helpers. (11.0.0) — [release notes](https://github.com/graphql-hive/graphql-yoga/releases/tag/%40envelop/testing%4011.0.0)
- mapMaybePromise is removed from Yoga and @envelop/core; use handleMaybePromise from @whatwg-node/promise-helpers. (11.0.0) — [release notes](https://github.com/graphql-hive/graphql-yoga/releases/tag/%40envelop/testing%4011.0.0)
- Request bodies are limited to 25,000,000 bytes by default; set maxRequestBodySize: false to disable the limit and preserve synchronous parsing for in-memory bodies. (11.0.0) — [release notes](https://github.com/graphql-hive/graphql-yoga/releases/tag/%40envelop/testing%4011.0.0)
- Yoga no longer re-exports MaybePromise; import it from @whatwg-node/promise-helpers. (11.0.0) — [release notes](https://github.com/graphql-hive/graphql-yoga/releases/tag/%40envelop/testing%4011.0.0)
- Yoga no longer re-exports mergeSchemas; import it from @graphql-tools/schema. (11.0.0) — [release notes](https://github.com/graphql-hive/graphql-yoga/releases/tag/%40envelop/testing%4011.0.0)
- The minimum supported Node version is now 22; Node 18 and 20 are no longer supported. (11.0.0) — [release notes](https://github.com/graphql-hive/graphql-yoga/releases/tag/%40envelop/testing%4011.0.0)
- Request body parsing is asynchronous due to the default size limit, so yoga.fetch() can return a Promise even when resolvers and plugins are synchronous. (11.0.0) — [release notes](https://github.com/graphql-hive/graphql-yoga/releases/tag/%40envelop/testing%4011.0.0)

### Behavior and default changes

- Yoga maps the GraphQL HTTP Accept header through INCREMENTAL_DELIVERY_SPECS to the executor incrementalSpec; unsupported incremental specs yield 406. (11.0.0) — [release notes](https://github.com/graphql-hive/graphql-yoga/releases/tag/%40envelop/testing%4011.0.0)

### Fixes and other changes

- Use asGetArgumentValuesVariables from @graphql-tools/utils for GraphQL 16/17 VariableValues compatibility. (11.0.0) — [release notes](https://github.com/graphql-hive/graphql-yoga/releases/tag/%40envelop/testing%4011.0.0)
- Use coerceGetVariableValuesResult from @graphql-tools/utils for GraphQL 16/17 VariableValues compatibility. (11.0.0) — [release notes](https://github.com/graphql-hive/graphql-yoga/releases/tag/%40envelop/testing%4011.0.0)