servant-server/CHANGELOG.md · typeable/servant

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typeable/servant/servant-server/CHANGELOG.md

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1[The latest version of this document is on GitHub.](https://github.com/haskell-servant/servant/blob/master/servant-server/CHANGELOG.md)

2[Changelog for `servant` package contains significant entries for all core packages.](https://github.com/haskell-servant/servant/blob/master/servant/CHANGELOG.md)

4Package versions follow the [Package Versioning Policy](https://pvp.haskell.org/): in A.B.C, bumps to either A or B represent major versions.

60.19

7----

9### Significant changes

11- Drop support for GHC < 8.6.

12- Support GHC 9.0 (GHC 9.2 should work as well, but isn't fully tested yet).

13- Support Aeson 2 ([#1475](https://github.com/haskell-servant/servant/pull/1475)),

14 which fixes a [DOS vulnerability](https://github.com/haskell/aeson/issues/864)

15 related to hash collisions.

16- Add `NamedRoutes` combinator, making support for records first-class in Servant

17 ([#1388](https://github.com/haskell-servant/servant/pull/1388)).

18- Add custom type errors for partially applied combinators

19 ([#1289](https://github.com/haskell-servant/servant/pull/1289),

20 [#1486](https://github.com/haskell-servant/servant/pull/1486)).

220.18.3

23------

25### Significant changes

27- Add response header support to UVerb (#1420)

29### Other changes

31- Support GHC-9.0.1.

32- Bump `bytestring`, `hspec` and `base64-bytestring` dependencies.

340.18.2

35------

37### Significant changes

39- Support `Fragment` combinator.

410.18.1

42------

44### Significant changes

46- Union verbs

48### Other changes

50- Bump "tested-with" ghc versions

51- Allow newer dependencies

530.18

54----

56### Significant changes

58- Support for ghc8.8 (#1318, #1326, #1327)

60- Configurable error messages for automatic errors thrown by servant,

61 like "no route" or "could not parse json body" (#1312, #1326, #1327)

640.17

65----

67### Significant changes

69- Add NoContentVerb [#1028](https://github.com/haskell-servant/servant/issues/1028) [#1219](https://github.com/haskell-servant/servant/pull/1219) [#1228](https://github.com/haskell-servant/servant/pull/1228)

71 The `NoContent` API endpoints should now use `NoContentVerb` combinator.

72 The API type changes are usually of the kind

74 ```diff

75 - :<|> PostNoContent '[JSON] NoContent

76 + :<|> PostNoContent

77 ```

79 i.e. one doesn't need to specify the content-type anymore. There is no content.

81- `Capture` can be `Lenient` [#1155](https://github.com/haskell-servant/servant/issues/1155) [#1156](https://github.com/haskell-servant/servant/pull/1156)

83 You can specify a lenient capture as

85 ```haskell

86 :<|> "capture-lenient" :> Capture' '[Lenient] "foo" Int :> GET

87 ```

89 which will make the capture always succeed. Handlers will be of the

90 type `Either String CapturedType`, where `Left err` represents

91 the possible parse failure.

93- *servant-server* use queryString to parse QueryParam, QueryParams and QueryFlag [#1249](https://github.com/haskell-servant/servant/pull/1249) [#1262](https://github.com/haskell-servant/servant/pull/1262)

95 Some APIs need query parameters rewriting, e.g. in order to support

96 for multiple casing (camel, snake, etc) or something to that effect.

98 This could be easily achieved by using WAI Middleware and modifying

99 request's `Query`. But QueryParam, QueryParams and QueryFlag use

100 `rawQueryString`. By using `queryString` rather then `rawQueryString`

101 we can enable such rewritings.

102

103- *servant* *servant-server* Make packages `build-type: Simple` [#1263](https://github.com/haskell-servant/servant/pull/1263)

104

105 We used `build-type: Custom`, but it's problematic e.g.

106 for cross-compiling. The benefit is small, as the doctests

107 can be run other ways too (though not so conveniently).