[ANN] Servant 0.19 release

gdeest · February 2, 2022, 3:33pm

Servant warmly welcomes 3 new maintainers, namely Caroline (@ akhesaCaro), Gaël (@ gael_deest) and Hécate (@ TechnoEmpress), who’ve already been all over the place to shape up this release, improve the CI and documentation infrastructure and start working on what’s going to come next.

We are pleased to announce a major upgrade of the core servant packages: servant, servant-server, servant-client-core and servant-client 0.19 (along with minor compability updates to other packages). This release ships with numerous bug fixes, new features and usability improvements.

The changelog can be found here:

github.com

haskell-servant/servant/blob/e14f445e2aa5618a15d6e4d6bdf6df97e5797992/servant/CHANGELOG.md#019

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

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

0.19
----

### Significant changes

- Drop support for GHC < 8.6.
- Support GHC 9.0 (GHC 9.2 should work as well, but isn't fully tested yet).
- Support Aeson 2 ([#1475](https://github.com/haskell-servant/servant/pull/1475)),
  which fixes a [DOS vulnerability](https://github.com/haskell/aeson/issues/864)
  related to hash collisions.
- Add `NamedRoutes` combinator, making support for records first-class in Servant
  ([#1388](https://github.com/haskell-servant/servant/pull/1388)).
 
  Users can now directly mark part as an API as defined by a record, instead of
  using `(:<|>)` to combine routes. Concretely, the anonymous:

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You are highly encouraged to test this release out and let us know what you think ! For bug reports, features requests or any kind of feedback, just open a ticket on our issue tracker.

Happy hacking !

The Servant Maintainers team