Auto/semi auto derivation: Validator and Schema derivations are now configurable. In order make your code compile as it was before, you need to add an explicit import:

import sttp.tapir.generic.auto._

or separately:

import sttp.tapir.generic.schema._
import sttp.tapir.generic.validator._

You can also use ValidatorDerivation and SchemaDerivation mixins. See https://tapir.softwaremill.com/en/latest/endpoint/customtypes.html#schema-derivation for more details.

There's also a ScalaFix migration available: https://github.com/xela85/TapirGenericAutoMigration.

There's a couple of breaking changes in this release. Some background information can be found here: https://blog.softwaremill.com/tapir-codecs-get-an-update-c9801889cbf3

A non-comprehensive summary of the breaking changes:

• Codec[H, CF, L] becomes Codec[L, H, CF]
• CodecForMany and CodecForOptional is removed. Instead, use Codec[List[...], ...] or Codec[Option[...], ...]
• List replaced some usages of Seq, in the types to which endpoint inputs/outputs mapped
• if you are using custom (implicit) json codecs, for json bodies you should use anyJsonBody

Breaking changes

• the SwaggerHttp4s.routes: HttpRoutes now returns routes that include the given contextPath. Hence, when before to expose the routes you had to do Router("/docs" -> new SwaggerHttp4s(yaml).routes[IO]), now it's:

Router("/" -> new SwaggerHttp4s(yaml).routes[IO])

See #319

Major changes

• renamed the group id from com.softwaremill.tapir to com.softwaremill.sttp.tapir (organization)
• renamed the main package from tapir to sttp.tapir (see sttp-client/#288)
• Codecs are parametrised with a CodecFormat, instead of a MediaType (however, codec format still includes a media type)
• using sttp model (which is shared with sttp client)
• changed SchemaFor[T] into Schema[T]. Previous Schema datatype now is SchemaType (#247)

And some minor changes :)