Sourced from apollo-server's changelog.

v3.2.0

If you're using apollo-server-express or another framework integration, we highly recommend that you enable the new graceful shutdown feature after upgrading to 3.2.0. See the docs for ApolloServerPluginDrainHttpServer or the basic usage for your integration of choice.

• apollo-server-core: Previously, only the batteries-included apollo-server package supported a graceful shutdown. Now the integrations support it as well, if you tell your ApolloServer which HTTP server to drain with the new ApolloServerPluginDrainHttpServer plugin. This plugin implements a new drainServer plugin hook. For apollo-server-hapi you can use ApolloServerPluginStopHapiServer instead. [PR #5635](apollographql/apollo-server#5635)
• apollo-server-core: Fix experimental_approximateDocumentStoreMiB option, which seems to have never worked before. [PR #5629](apollographql/apollo-server#5629)
• apollo-server-core: Only register SIGINT and SIGTERM handlers once the server successfully starts up; trying to call stop on a server that hasn't successfully started had undefined behavior. By default, don't register the handlers in serverless integrations, which don't have the same lifecycle as non-serverless integrations (eg, there's no explicit start call); you can still explicitly set stopOnTerminationSignals to override this default. [PR #5639](apollographql/apollo-server#5639)

v3.1.2

• apollo-server-core: Update versions of @graphql-tools/schema and @graphql-tools/utils from v7 to v8. While there is no change in behavior in these versions, a recently-released version of @graphql-tools/mock depends on them, and so without this change, you tpyically end up with two copies of them installed.

v3.1.1

• apollo-server-env: Update Headers.values() type to match what node-fetch actually does and what the Fetch spec says it should be, and what @types/node-fetch finally gets correct. [PR #5537](apollographql/apollo-server#5537)

v3.1.0

• apollo-server-core: If a client does not provide a value or provides null for a variable declared to be non-null, this is now reported as an error with an extensions.code of BAD_USER_INPUT rather than INTERNAL_SERVER_ERROR. (This is similar to a change we made in v2.23.0 for variables that are sent as the wrong type.) [PR #5508](apollographql/apollo-server#5508) [Issue #5353](apollographql/apollo-server#5353)
• apollo-server-core/apollo-server-plugin-base: Add support for schemaDidLoadOrUpdate event hooks, to be specified by the serverWillStart event hook. Plugins listening for this event will receive the API schema (and core schema for gateways) when the server's schema is initially loaded and when the server's schema is updated. For more information about this plugin event, see the plugin event reference documentation. [PR #5187](apollographql/apollo-server#5187)
• apollo-server-core: Add support for schema reporting when using Apollo Gateway. At the time of this package's release, Apollo Studio does not yet support schema reporting from gateways, so you should not use this feature yet for gateways (unless instructed otherwise by Apollo staff or by the Studio docs). If you do enable schema reporting for a gateway, the version of @apollo/gateway must be at least 0.35.0 , or else start() will error. [PR #5187](apollographql/apollo-server#5187)
• apollo-server-core: Support gateways without executors, to help with mocking gateways. Note that if you have a custom GatewayInterface implementation, Apollo Server will now honor the executor returned from load and will ignore the executor method on the gateway itself. See the PR for details. [PR #5539](apollographql/apollo-server#5539)
• apollo-server-plugin-response-cache, apollo-server-plugin-operation-registry: Change how the default export from the package is set up to fix errors with some build tools. [PR #5542](apollographql/apollo-server#5542)

v3.0.2

• apollo-server-types: TypeScript typings for info.cacheControl are now added to GraphQLResolveInfo as part of apollo-server-types rather than a nested file in apollo-server-core, and the field now has a named type, ResolveInfoCacheControl. [PR #5512](apollographql/apollo-server#5512)
• apollo-server-micro: Like the other framework integrations, only serve landing pages from the GraphQL path (/graphql by default, configurable via the path option to createHandler). [PR #5516](apollographql/apollo-server#5516)
• apollo-server-env: Remove polyfills of Object.values, Object.entries, and util.promisify which were only required for Node 6 support. Remove ValueOrPromise and WithRequired TypeScript types that are also provided by apollo-server-types. [PR #5515](apollographql/apollo-server#5515)

v3.0.1

• apollo-server-core: The default maxAge (which defaults to 0) for a field should only be applied if no dynamic cache control hint is set. Specifically, if you call the (new in 3.0.0) function info.cacheControl.cacheHint.restrict({ maxAge: 60 }), it should set maxAge to 60 even if the default max age is lower. (This bug fix is the behavior that was intended for 3.0.0, and primarily affects the behavior of functions added in Apollo Server 3. This does mean that checking info.cacheControl.cacheHint now only shows explicitly-set maxAge and not the default, but this seems like it will be helpful since it lets you differentiate between the two similar circumstances.) [PR #5492](apollographql/apollo-server#5492)
• apollo-server-lambda: Fix TypeScript types for context function. (In 3.0.0, the TS types for the context function were accidentally inherited from apollo-server-express instead of using the correct Lambda-specific types). [PR #5481](apollographql/apollo-server#5481)
• apollo-server-lambda, apollo-server-cloud-functions: Make the default URL path for handling GraphQL be / (ie, handle all requests). This is similar to how these packages work in Apollo Server 2. After this change, apollo-server and the serverless integrations have a default URL path of / (or ignore the path entirely, in the case of apollo-server-azure-functions), and the framework integrations have a default URL path of /graphql. This is a backwards-incompatible change from 3.0.1 but minimizes the changes from Apollo Server 2 (and this AS3 change was not intended or documented). [PR #5497](apollographql/apollo-server#5497) [Issue #5462](apollographql/apollo-server#5462)

v3.0.0

BREAKING CHANGES

Apollo Server 3 contains quite a few breaking changes. Read our migration guide for more details on how to update your app.

Bumped dependencies

The minimum versions of these dependencies have been bumped to provide an improved foundation for the development of future features.

• Dropped support for Node.js v6, v8 and v10. Apollo Server 3.x is being compiled to ES2020, which maps to Node.js 12+.
  • Note also that we only test Apollo Server on even-numbered versions of Node.js, and we only aim to support Node.js versions that are under long-term support from the Node.js Foundation.
• Dropped support for versions of the graphql library prior to 15.3.0.
• The mocks option of the ApolloServer constructor now uses @graphql-tools/mock v7 instead of graphql-tools v4, which causes some breaking changes.

... (truncated)

• 4dc1913 Release
• 69df6bf Generalize apollo-server graceful shutdown to all integrations (#5635)
• 1a92f79 Use optional chaining across the entire repo (#5609)
• 65c88f1 Release
• eb06724 Release
• d22ffd3 Release
• a383a6d Release
• 26638b0 Refactor to repeat less
• 2f45dd3 Restore test that runs a separate process
• cb3fc84 Clean up http Agents after tests
• Additional commits viewable in compare view

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