Notable Changes in IntelliJ Platform and Plugins API 2019.*

Notable Changes in IntelliJ Platform 2019.2

com.intellij.util.Query.forEach

Defaults to thread-safe to prevent problems with clients using unsynchronized collections.

Notable Changes in IntelliJ Platform 2019.1

@org.jetbrains.annotations.ApiStatus.AvailableSince

External annotations for IntelliJ Platform are generated and attached to plugin projects automatically (replacing @since Javadoc).

@org.jetbrains.annotations.ApiStatus.ScheduledForRemoval

External annotations for IntelliJ Platform are generated and attached to plugin projects automatically. This allows highlighting of API which has been removed in newer platform versions.

@org.jetbrains.annotations.ApiStatus.Internal

Indicates that the annotated element must not be considered as a public API. Do not use outside of IntelliJ Platform. Issue

PsiReferenceProvider assert underlying element

Assert references are created for the given underlying PsiElement. Issue

CachedValue more strict assertions

Enabled in tests and EAP/internal mode, see CachedValueStabilityChecker Javadoc.