Releasing Servant 0.20.3.0

[tchoutri]

At the moment we have a nice collection of PRs that have landed which should not break the API. I suggest that we bump the minor version of the libraries to 0.20.3.0.

Let's open the window for merging bug fixes.

cc @fisx @ysangkok @maksbotan @gdeest Are there things you'd like to see merged?

[gdeest]

@tchoutri I don't, but let me add that I am quite looking forward to the inclusion of MultiVerb into an official release.

[tchoutri]

@gdeest Cheers! If you could take some time to try it out, I'd be very happy (replacing UVerb would be even better but even for new endpoints it'd already be very useful)!

You can see how it went for me in https://github.com/flora-pm/flora-server/pull/824/files

[gdeest]

Nice ! (At the risk of totally derailing this discussion, I would expect the derivation of AsUnion to be fully automated ; is there something that prevents you from using the deriving via GenericAsUnion machinery mentioned in the documentation ?)

[tchoutri]

@gdeest Missing instance:

src/web/FloraWeb/Pages/Routes/Settings.hs:58:13: error: [GHC-39999]
    • No instance for ‘AsConstructor
                         '[Text]
                         (WithHeaders
                            '[Header "Location" Text] ((), Text) (RespondEmpty 301 ""))’
        arising from the 'deriving' clause of a data type declaration

I'm thinking of adding it in Servant so that can be of use to others.

[tchoutri]

@gdeest Turns out I was making my own life more difficult, what Servant provides in bce6b4b is more than enough. See flora-pm/flora-server@f2aeadd#diff-6f785d339b724305d4914914a6604755232ecb2c97631f5be1b5427206fe531f