https://github.com/spring-projects/spring-boot/blob/main/spring-boot-project/spring-boot-docs/src/docs/asciidoc/features/kotlin.adoc claims that boot requires kotlin 1.3.x, but I'm sure start.spring.io gives me kotlin 1.4. What's up?
Kotlin 1.5 just came out. Is that compatible with spring boot?
Comment From: scottfrederick
The Kotlin version is correct in the Dependency Versions section of the documentation. Maybe it would be better to link to this section in 4.30.1 Requirements, or to inject the version as a variable in the asciidoc instead of hard-coding it so it doesn't get out of sync again.
Comment From: scottfrederick
Spring Boot 2.4 is compatible with Kotlin 1.4. Spring Boot 2.5 will support Kotlin 1.5. We'll pick up the upgrade from Kotlin 1.5.0-RC to 1.5.0 as part of our semi-automated dependency upgrade process before the Boot 2.5.0 release.
Comment From: wilkinsona
Strictly speaking, I think we require 1.3.x or later as our Kotlin code is compiled with a 1.3 API and language version. The default Kotlin version provided by dependency management then changes across Boot 2.3, 2.4, and 2.5.
Comment From: scottfrederick
@wilkinsona Are you suggesting that we could change the text in 4.30.1 Requirements to say something "Spring Boot supports Kotlin 1.3.x or later" and then leave the specific version for the managed dependency section?
Comment From: wilkinsona
Yes, I think so. It's a bit like our Java requirement in that respect, but with some additional dependency management for its standard library, etc.
Comment From: lower-case
Hi @wilkinsona @scottfrederick , I've raised the PR to fix this documentation. Please review.
Thanks 😊
Comment From: snicoll
@lower-case thanks for the PR. FTR there is no need to add a comment here, we've already received a notification when the PR was submitted.
Closing in favor of PR #26421