3.0.4 release of swagger-codegen with OpenAPI 3 support.

Supported V3 generators

• akka-scala (experimental)
• dynamic-html
• html
• html2
• java
• jaxrs-cxf-client
• jaxrs-cxf
• inflector
• jaxrs-cxf-cdi
• jaxrs-spec
• jaxrs-jersey
• jaxrs-di
• jaxrs-resteasy-eap
• jaxrs-resteasy
• spring
• openapi
• openapi-yaml
• kotlin-client
• kotlin-server
• nodejs (new)
• php
• swift3
• swift4
• typescript-angular
• scala
• aspnetcore (experimental)
• csharp (experimental)
• csharp-dotnet2 (experimental)

Notable changes:

• new nodejs generator! - (swagger-codegen-generators PR 253)
• added nodejs sample. (#8970)
• refs #8976 - spring server syntax error (regression) (#8978)
• refactor api template for spring. (swagger-codegen-generators PR 258)
• fixed spring templates. (swagger-codegen-generators PR 257)
• updated generator endpoints to support all codegen types (#8975)
• update online generator UI to latest (#9003)
• Refs #255, #254 - required post body with path parameters produces uncompilable code (swagger-codegen-generators PR 267)
• add validation extension to fix #8772 (swagger-codegen-generators PR 265)
• refs #7960 - support for relative server url. (#9047)
• Swagger Codegen Rebranding in 3.0.0 (#8991)
• Swagger Codegen Generators Rebranding in 3.0.0 (swagger-codegen-generators PR 262)
• use template dir if custom one is not used in order to fix #8964. (swagger-codegen-generators PR 261)
• added capability to use URL related to input definition. (swagger-codegen-generators PR 256)
• fixed inputURL parameter (swagger-codegen-generators PR 271)