This patch was authored by @andtie and released by @0xTim.
Honor the configuration for Date Decoding & Encoding in URLEncodedFormDecoder / URLEncodedFormEncoder (fixes #2518).
// Configure a non-default date decoding strategy
let decoder = URLEncodedFormDecoder(configuration: .init(dateDecodingStrategy: .iso8601))
ContentConfiguration.global.use(urlDecoder: decoder)
// allow to use optional date-parameters in a request
let after = try req.query.get(Date?.self, at: "after") ?? .distantPast
// => dates with the expected format (e.g. "...?after=2020-10-28T10:31:14Z") are correctly parsed