# [4.0.0](https://github.com/zino-app/graphql-flutter/compare/v3.1.0...v4.0.0) (2021-01-31)
### Bug Fixes
* **examples:** starwars example cache ([22db4f7](https://github.com/zino-app/graphql-flutter/commit/22db4f7ffac1ca7abd00a75a060117ec5b9e4375))
* fix ObservableQuery.lifecycle for cache only results ([f44b479](https://github.com/zino-app/graphql-flutter/commit/f44b479adc32a676d71dfc6ea95be78f60dbd3b6))
* **client:** mutation not firing observer callbacks ([75393c2](https://github.com/zino-app/graphql-flutter/commit/75393c2763c8b232aea7a719fa54d53a5885f995))
* query test ([f54c6ae](https://github.com/zino-app/graphql-flutter/commit/f54c6aeba316a263dc42c3c53ea2a59a14a747aa))
* **ci:** loosen path version ([645d462](https://github.com/zino-app/graphql-flutter/commit/645d462a73047910ba3c45a1b28483016c082131))
* **client:** add CacheMissException for when write/read results in null ([a0a967f](https://github.com/zino-app/graphql-flutter/commit/a0a967f0d348a7ce368843b74567f04192b6bfb7))
* **client:** fetchMore partial handling ([10ec576](https://github.com/zino-app/graphql-flutter/commit/10ec57690c1d6a98be19de2076c4e167aa2cf4b0))
* **client:** gql_http_link==0.3.2 for custom toJsons closing [#734](https://github.com/zino-app/graphql-flutter/issues/734) ([98b8cf7](https://github.com/zino-app/graphql-flutter/commit/98b8cf771e9f982741d5041bd4a4f017ac46dc91))
* **client:** only queries are refetch safe ([1e93376](https://github.com/zino-app/graphql-flutter/commit/1e9337633d3c0b6ea61bc3d83fd7d9b1f2f20a7a))
* **client:** refetch overrides fetchPolicy ([891bc2b](https://github.com/zino-app/graphql-flutter/commit/891bc2b1d3e501cd7e494c81134dd8665115c40d))
* **client:** skip cache writes on null data, thus fixing [#405](https://github.com/zino-app/graphql-flutter/issues/405) ([7472bb9](https://github.com/zino-app/graphql-flutter/commit/7472bb9102b22b0652f6df53d6bcea66592f8aa0))
* **client:** wrap all subscription errors in QueryResults ([aae61ca](https://github.com/zino-app/graphql-flutter/commit/aae61cab543000916442420069b8e4019fa6ed0e))
* **docs:** typo in docstring, add todo to sanitizeVariables ([9c84cb1](https://github.com/zino-app/graphql-flutter/commit/9c84cb13b7796b6b15027a8a2c76b00a953332bc))
* **examples:** cleanup bloc example ([82724f0](https://github.com/zino-app/graphql-flutter/commit/82724f08b58db163864426e22b64ae159e6ef1e3))
* **examples:** flutter bloc pubspec ([61582b3](https://github.com/zino-app/graphql-flutter/commit/61582b3d7bc15f3b1630175e39672d89db537ccf))
* **examples:** ignore missing token ([ffd3294](https://github.com/zino-app/graphql-flutter/commit/ffd329446b078bae25b99294faf4403deed67c24))
* **examples:** starwars example works again ([7514b93](https://github.com/zino-app/graphql-flutter/commit/7514b93fa280cd398f73db95b1a86f358bf690d5))
* **examples:** update ios files for graphql_flutter/example ([5b6e3d0](https://github.com/zino-app/graphql-flutter/commit/5b6e3d06a7dc56888dcbfc4c395ea51985c10f1c))
* **graphql:** default-yet-overrideable variable ([6ba687e](https://github.com/zino-app/graphql-flutter/commit/6ba687ec90c336cc47394230f95abdce80aa1392))
* **graphql:** don't close mutations after callbacks ([2ba6c74](https://github.com/zino-app/graphql-flutter/commit/2ba6c743a7317c3df05c3f1c5e8e3e3cd44d6827))
* **graphql:** dumb ?? documentNode bug ([ba7b641](https://github.com/zino-app/graphql-flutter/commit/ba7b6410c61a7d2cf9e28e4be2f2886a60ec4e52))
* **graphql:** fix rebroadcasting by refactoring onData callbacks into a simpler async function ([9a5fff1](https://github.com/zino-app/graphql-flutter/commit/9a5fff1192bd8af069dd8d2ce8723a2598c13341))
* **graphql:** keep deprecated QueryResult api and mark it as such ([2b447a0](https://github.com/zino-app/graphql-flutter/commit/2b447a02b3d25ca6398ac02033aa1c7d156be73c))
* **graphql:** sanitize multipart files for cache ([4ceb800](https://github.com/zino-app/graphql-flutter/commit/4ceb8006baf4539ab423e3b3a229f194cc2eac45))
* **graphql:** simplified AuthLink ([0b3fbd9](https://github.com/zino-app/graphql-flutter/commit/0b3fbd9a4d3d0f9bded2bd9a9fdf26e3bfe983df))
* **tests:** update tests ([bba4a7a](https://github.com/zino-app/graphql-flutter/commit/bba4a7aba99bd3e4c5c49442f2e1e6e3cc71cb67))
### Features
* cache now flags itself for broadcasting ([84cba43](https://github.com/zino-app/graphql-flutter/commit/84cba43f9a7255b0125464014ee3c40e9b71d2ad))
* client.fetchMore utility for leveraging the fetch more logic results without using ObservableQuery ([814ccb3](https://github.com/zino-app/graphql-flutter/commit/814ccb33264a36e7898e5817d5be563366fcea2b))
* documentNode -> document, dependency issues, reexport links from client (for now), retrieve subscription changes from [#533](https://github.com/zino-app/graphql-flutter/issues/533) ([4fb205c](https://github.com/zino-app/graphql-flutter/commit/4fb205cfd4beab2745c361da18444eda7d7ab9b6))
* **graphql:** HiveStore.open ([6db4677](https://github.com/zino-app/graphql-flutter/commit/6db46779ab5da6c7719d2df6685eac332ebff5af))
* drop Link layer in favor of package:gql_link and package:gql_exec ([2e491a7](https://github.com/zino-app/graphql-flutter/commit/2e491a7c54ebb77a1552cde4cda7e638af866e82))
* **client:** add context to QueryResult ([fbc5a2d](https://github.com/zino-app/graphql-flutter/commit/fbc5a2d1fbd2257e4d94aabbc9369f888d3f992b))
* **client:** cache proxy methods on cache, resetStore with optional refetchQueries ([ba7134a](https://github.com/zino-app/graphql-flutter/commit/ba7134aad4f755c420ebf0f600898c090df52da7))
* **client:** cache writes are now strict, and throw PartialDataException (from normalize), ([616b5ed](https://github.com/zino-app/graphql-flutter/commit/616b5edb503ce68d0212c5da8a9df69a9df30782))
* **client:** CacheRereadPolicy, watchMutation workaround ([32e02da](https://github.com/zino-app/graphql-flutter/commit/32e02dac00b581bc594fa5e42bcdcca326369cce))
* **client:** carry forward data on exception ([ccf3b9c](https://github.com/zino-app/graphql-flutter/commit/ccf3b9ca8b961574407e68b69f082d8b1d20a352))
* **client:** expose store, cleanup ([6fc5e7e](https://github.com/zino-app/graphql-flutter/commit/6fc5e7e0878231ca2e3da465a16a8ef38906031e))
* **client:** only rebroadcast on deep equals ([ee64e99](https://github.com/zino-app/graphql-flutter/commit/ee64e99612025918d136a436796724a26c6adcfd))
* **client:** partialDataPolicy for configuring rejections ([0a7cd28](https://github.com/zino-app/graphql-flutter/commit/0a7cd280ef6c56726bcefbdfea6ac2d5e2bc16db))
* **client:** QueryResult.unexecuted ([13e3257](https://github.com/zino-app/graphql-flutter/commit/13e32572dd7401e24207c7bbf889d05847f1d86b))
* **client:** refetchSafeQueries, clarify rebroadcast calls in docs ([e45b240](https://github.com/zino-app/graphql-flutter/commit/e45b240ae5992edb63e02ddd01ddc5dc9d955795))
* **docs:** v4 changelog ([38cfd9b](https://github.com/zino-app/graphql-flutter/commit/38cfd9b869b92b27e4790a8b4097b74ce06ed647))
* **examples:** reorg graphql example so pub displays code ([bc32bdd](https://github.com/zino-app/graphql-flutter/commit/bc32bddfc37c212538999a9ff2b427b639e454f3))
* **examples:** starwars hivestore usage ([2f874ec](https://github.com/zino-app/graphql-flutter/commit/2f874ecde038e16332bb51243afb167ac0421e35))
* **graphql:** add isMutation etc helpers to Options types ([04e7888](https://github.com/zino-app/graphql-flutter/commit/04e7888e5c1d4f8a61e786a7e541bfaf0116accd))
* **graphql:** complete caching overhaul ([e9b5660](https://github.com/zino-app/graphql-flutter/commit/e9b56606c45f4616db75ec7cfc0918a6f0419a12))
* **graphql:** HiveStore api improvements, fetchmore fixes ([2d1a7f2](https://github.com/zino-app/graphql-flutter/commit/2d1a7f2e367f57f6ff2f968814045fb5edf15085))
* **graphql:** multipart file support ([c2733ca](https://github.com/zino-app/graphql-flutter/commit/c2733ca3d33b1b50afc5b2ef7809fd1f4aa41500))
* **graphql:** re-add documentNode asdeprecated ([20d0176](https://github.com/zino-app/graphql-flutter/commit/20d017612072db9563842a4ba2322c8b3101ab3a))
* more work on gql links ([0d7ef7a](https://github.com/zino-app/graphql-flutter/commit/0d7ef7a885d905592dee313a64e57505dc5d7973))
* **graphql:** Robust ObservableQuery docs ([1e893b5](https://github.com/zino-app/graphql-flutter/commit/1e893b5debf60e410816496bb795e0cc51132b20))
* **graphql:** update old websocket_link ([496d994](https://github.com/zino-app/graphql-flutter/commit/496d994e06148fbad1a394c7b3d68e43a8e8acaf))
* **graphql:** upgrade normalize to 0.4.2 ([4655e7d](https://github.com/zino-app/graphql-flutter/commit/4655e7d1da01432b3906890439c1850e2f1a2838))
* **graphql:** use new cache correctly everywhere else ([f64a6c8](https://github.com/zino-app/graphql-flutter/commit/f64a6c82aab878f3f828d86dcd71cf8422e038b1))
* starting on gql links ([d9452bc](https://github.com/zino-app/graphql-flutter/commit/d9452bc4529d261ca74b17a9be1baaaf231dcea2))
* **graphql:** work on making subscriptions more of a first-class citizen ([6d0b045](https://github.com/zino-app/graphql-flutter/commit/6d0b04564148623ecfe75f376818250683522a4c))
* **graphql_flutter:** add ResultAccumulator, fix Subscription ([7e1edee](https://github.com/zino-app/graphql-flutter/commit/7e1edeecf753c4d48335088ddb8597b50b1daf08))
* **graphql_flutter:** initHiveForFlutter ([1118cc7](https://github.com/zino-app/graphql-flutter/commit/1118cc72a2a38fc80c1df0855ac4154e0e426b1c))
* HiveStore ([2c3c66c](https://github.com/zino-app/graphql-flutter/commit/2c3c66cbb514a90e16a87ea4c722555824e18a06))
* move to DocumentNode-only documents ([7499323](https://github.com/zino-app/graphql-flutter/commit/7499323673af6ea6c9889c828fc8ff80042f1a74))
* **graphql_flutter:** work on making subscriptions more of a first-class citizen ([a0e0d5c](https://github.com/zino-app/graphql-flutter/commit/a0e0d5c4f3439a98d9e249f8362d4115d2440efa))
* **tests:** test subscriptions ([2a3e6a1](https://github.com/zino-app/graphql-flutter/commit/2a3e6a11edfe85d322c07514d238d89093e451a0))
### BREAKING CHANGES
* **client:** By fixing the defaults for mutations, the old behavior
is now lost
* the deprecated string documents are no longer supported
* Link layer is now implemented via package:gql_link and package:gql_exec
