Support for features in Kotlin 1.7.0 is now available and IntelliJ improved rendering for definitely non-nullable types and improved inspection for opt-in requirements.

Various JUnit inspections were converted to JVM inspections to support other languages such as Kotlin. Java inspections now recognize the name() and toString() methods of Charset and warn when variables hide fields and catch unnecessary Object.requireNonNullElse calls. This release also introduces various improvements for Java inspections and code completion. VoiceOver screen reader support increased accessibility on macOS and security was improved by using the latest OpenJDK LTS. This new release uses the JetBrains Runtime 17, a fork of OpenJDK 17, with performance improvements such as faster rendering thanks to the Metal API and improved vector computations from the Vector API. JetBrains has released IntelliJ IDEA 2022.2 featuring support for Java 17 and the latest languages and frameworks such as Scala, Kotlin, Spring 6 and Spring Boot 3.

Jetbrains intellij idea ultimate 2020.1