Update outdated elements in Kotlin reference documentation

Closes gh-31943

framework-docs/modules/ROOT/pages/languages/kotlin/bean-definition-dsl.adoc

@@ -107,7 +107,7 @@ NOTE: Spring Boot is based on JavaConfig and
 {spring-boot-issues}/8115[does not yet provide specific support for functional bean definition],
 but you can experimentally use functional bean definitions through Spring Boot's `ApplicationContextInitializer` support.
 See {stackoverflow-questions}/45935931/how-to-use-functional-bean-definition-kotlin-dsl-with-spring-boot-and-spring-w/46033685#46033685[this Stack Overflow answer]
-for more details and up-to-date information. See also the experimental Kofu DSL developed in {spring-github-org}/spring-fu[Spring Fu incubator].
+for more details and up-to-date information. See also the experimental Kofu DSL developed in {spring-github-org}-experimental/spring-fu[Spring Fu incubator].
 
 
 

framework-docs/modules/ROOT/pages/languages/kotlin/coroutines.adoc

@@ -17,6 +17,7 @@ Spring Framework provides support for Coroutines on the following scope:
 * WebFlux {spring-framework-api-kdoc}/spring-web/org.springframework.web.server/-co-web-filter/index.html[`CoWebFilter`]
 * Suspending function and `Flow` support in RSocket `@MessageMapping` annotated methods
 * Extensions for {spring-framework-api-kdoc}/spring-messaging/org.springframework.messaging.rsocket/index.html[`RSocketRequester`]
+* Spring AOP
 
 
 

framework-docs/modules/ROOT/pages/languages/kotlin/getting-started.adoc

@@ -10,22 +10,21 @@ The easiest way to learn how to build a Spring application with Kotlin is to fol
 == `start.spring.io`
 
 The easiest way to start a new Spring Framework project in Kotlin is to create a new Spring
-Boot 2 project on https://start.spring.io/#!language=kotlin&type=gradle-project[start.spring.io].
+Boot project on https://start.spring.io/#!language=kotlin&type=gradle-project-kotlin[start.spring.io].
 
 
 
 [[choosing-the-web-flavor]]
 == Choosing the Web Flavor
 
-Spring Framework now comes with two different web stacks: xref:web/webmvc.adoc#mvc[Spring MVC] and
+Spring Framework comes with two different web stacks: xref:web/webmvc.adoc#mvc[Spring MVC] and
 xref:testing/unit.adoc#mock-objects-web-reactive[Spring WebFlux].
 
 Spring WebFlux is recommended if you want to create applications that will deal with latency,
-long-lived connections, streaming scenarios or if you want to use the web functional
-Kotlin DSL.
+long-lived connections or streaming scenarios.
 
 For other use cases, especially if you are using blocking technologies such as JPA, Spring
-MVC and its annotation-based programming model is the recommended choice.
+MVC is the recommended choice.
 
 
 

framework-docs/modules/ROOT/pages/languages/kotlin/requirements.adoc

@@ -2,15 +2,12 @@
 = Requirements
 :page-section-summary-toc: 1
 
-Spring Framework supports Kotlin 1.3+ and requires
+Spring Framework supports Kotlin 1.7+ and requires
 https://search.maven.org/artifact/org.jetbrains.kotlin/kotlin-stdlib[`kotlin-stdlib`]
-(or one of its variants, such as https://search.maven.org/artifact/org.jetbrains.kotlin/kotlin-stdlib-jdk8[`kotlin-stdlib-jdk8`])
 and https://search.maven.org/artifact/org.jetbrains.kotlin/kotlin-reflect[`kotlin-reflect`]
 to be present on the classpath. They are provided by default if you bootstrap a Kotlin project on
 https://start.spring.io/#!language=kotlin&type=gradle-project[start.spring.io].
 
-WARNING: Kotlin {kotlin-docs}/inline-classes.html[inline classes] are not yet supported.
-
 NOTE: The {jackson-github-org}/jackson-module-kotlin[Jackson Kotlin module] is required
 for serializing or deserializing JSON data for Kotlin classes with Jackson, so make sure to add the
 `com.fasterxml.jackson.module:jackson-module-kotlin` dependency to your project if you have such need.

framework-docs/modules/ROOT/pages/languages/kotlin/resources.adoc

@@ -18,28 +18,9 @@ Kotlin and the Spring Framework:
 
 The following Github projects offer examples that you can learn from and possibly even extend:
 
+* https://github.com/spring-guides/tut-spring-boot-kotlin[tut-spring-boot-kotlin]: Sources of {spring-site}/guides/tutorials/spring-boot-kotlin/[the official Spring + Kotlin tutorial]
 * https://github.com/sdeleuze/spring-boot-kotlin-demo[spring-boot-kotlin-demo]: Regular Spring Boot and Spring Data JPA project
-* https://github.com/mixitconf/mixit[mixit]: Spring Boot 2, WebFlux, and Reactive Spring Data MongoDB
+* https://github.com/mixitconf/mixit[mixit]: Spring Boot, WebFlux, and Reactive Spring Data MongoDB
 * https://github.com/sdeleuze/spring-kotlin-functional[spring-kotlin-functional]: Standalone WebFlux and functional bean definition DSL
 * https://github.com/sdeleuze/spring-kotlin-fullstack[spring-kotlin-fullstack]: WebFlux Kotlin fullstack example with Kotlin2js for frontend instead of JavaScript or TypeScript
 * https://github.com/spring-petclinic/spring-petclinic-kotlin[spring-petclinic-kotlin]: Kotlin version of the Spring PetClinic Sample Application
-* https://github.com/sdeleuze/spring-kotlin-deepdive[spring-kotlin-deepdive]: A step-by-step migration guide for Boot 1.0 and Java to Boot 2.0 and Kotlin
-* https://github.com/spring-cloud/spring-cloud-gcp/tree/master/spring-cloud-gcp-kotlin-samples/spring-cloud-gcp-kotlin-app-sample[spring-cloud-gcp-kotlin-app-sample]: Spring Boot with Google Cloud Platform Integrations
-
-
-
-[[issues]]
-== Issues
-
-The following list categorizes the pending issues related to Spring and Kotlin support:
-
-* Spring Framework
-** {spring-framework-issues}/20606[Unable to use WebTestClient with mock server in Kotlin]
-** {spring-framework-issues}/20496[Support null-safety at generics, varargs and array elements level]
-* Kotlin
-** {kotlin-issues}/KT-6380[Parent issue for Spring Framework support]
-** {kotlin-issues}/KT-5464[Kotlin requires type inference where Java doesn't]
-** {kotlin-issues}/KT-20283[Smart cast regression with open classes]
-** {kotlin-issues}/KT-14984[Impossible to pass not all SAM argument as function]
-** {kotlin-issues}/KT-15125[Support JSR 223 bindings directly via script variables]
-** {kotlin-issues}/KT-6653[Kotlin properties do not override Java-style getters and setters]

framework-docs/modules/ROOT/pages/languages/kotlin/web.adoc

@@ -8,9 +8,9 @@
 
 Spring Framework comes with a Kotlin router DSL available in 3 flavors:
 
-* WebMvc.fn DSL with {spring-framework-api-kdoc}/spring-webmvc/org.springframework.web.servlet.function/router.html[router { }]
-* WebFlux.fn <<web-reactive#webflux-fn, Reactive>> DSL with {spring-framework-api-kdoc}/spring-webflux/org.springframework.web.reactive.function.server/router.html[router { }]
-* WebFlux.fn <<Coroutines>> DSL with {spring-framework-api-kdoc}/spring-webflux/org.springframework.web.reactive.function.server/co-router.html[coRouter { }]
+* xref:web/webmvc-functional.adoc[WebMvc.fn DSL] with {spring-framework-api-kdoc}/spring-webmvc/org.springframework.web.servlet.function/router.html[router { }]
+* xref:web/webflux-functional.adoc[WebFlux.fn Reactive DSL] with {spring-framework-api-kdoc}/spring-webflux/org.springframework.web.reactive.function.server/router.html[router { }]
+* xref:languages/kotlin/coroutines.adoc[WebFlux.fn Coroutines DSL] with {spring-framework-api-kdoc}/spring-webflux/org.springframework.web.reactive.function.server/co-router.html[coRouter { }]
 
 These DSL let you write clean and idiomatic Kotlin code to build a `RouterFunction` instance as the following example shows:
 
@@ -126,7 +126,7 @@ project for more details.
 [[kotlin-multiplatform-serialization]]
 == Kotlin multiplatform serialization
 
-As of Spring Framework 5.3, {kotlin-github-org}/kotlinx.serialization[Kotlin multiplatform serialization] is
+{kotlin-github-org}/kotlinx.serialization[Kotlin multiplatform serialization] is
 supported in Spring MVC, Spring WebFlux and Spring Messaging (RSocket). The builtin support currently targets CBOR, JSON, and ProtoBuf formats.
 
 To enable it, follow {kotlin-github-org}/kotlinx.serialization#setup[those instructions] to add the related dependency and plugin.