Kotlin v1.5.21 released!

[NewsBot]

Kotlin v1.5.21 has been released.

Changelog

Compiler

• KT-47320 “StringConcatException: Mismatched number of concat arguments” String concatenation fails when template contains special character
• KT-47445 “definitely not null type parameters is only available since language version 1.6” error in cast expression
• KT-47446 Improve warning message INTEGER_OPERAT…

Link: Release Kotlin 1.5.21 · JetBrains/kotlin · GitHub