Please see Verifying Plugin Compatibility on how to use Plugin Verifier and IDE inspections to check such problems.
Early Access Program (EAP) releases of upcoming versions are available here.
Changes from API marked with @Deprecated(forRemoval=true) or any of ApiStatus @Experimental, @ScheduledForRemoval, or @Internal are not listed here, as incompatible changes are to be expected.
For API annotated with @ApiStatus.Internal/@IntellijInternalApi, see Internal API Migration for more details and replacements.
Java version must be set depending on the target platform version.
Java 21
Java 17
The Gradle plugin must be chosen depending on the target platform version.
Recommended IntelliJ Platform Gradle Plugin (2.x)
Requires Gradle IntelliJ Plugin (1.x) (Obsolete) 1.10.1+
Several modules were extracted from the core plugin to separate modules with their own classloaders. This shouldn't affect binary compatibility, but an explicit dependency should be added in build.gradle.kts using bundledModule(<moduleName>) if a plugin uses API from these modules:
intellij.platform.tasks
intellij.spellchecker
intellij.relaxng
icons.JavaUltimateIcons class moved to package com.intellij.java.ultimate.icons
Update code usages and make sure your plugin depends on the Java plugin.
com.intellij.psi.xml.HtmlFileElementType.getHtmlStubVersion() method removed
Use com.intellij.xml.HtmlLanguageStubVersionUtil.getHtmlStubVersion() instead.
com.intellij.openapi.actionSystem.ActionGroup.getChildren(AnActionEvent, ActionManager) method removed
Avoid expanding an action group manually
com.intellij.openapi.actionSystem.DefaultActionGroup.getChildren(AnActionEvent, ActionManager) method removed
Avoid expanding an action group manually or use DefaultActionGroup.getChildren(ActionManager)
com.intellij.diff.util.ThreeSide.map(Function) method parameter type changed from com.intellij.util.Function to kotlin.jvm.functions.Function1
Use kotlin.jvm.functions.Function1 as a parameter.
com.intellij.webSymbols package together with all the classes and extension points has been renamed to com.intellij.polySymbols.
The classes were renamed using pattern WebSymbol[s]?(.*)-> PolySymbol$1. Some classes have also been moved to more specific packages.
From other notable changes:
PolySymbol interface no longer extends PolySymbolScope
PolySymbol interface no longer contains documentation-specific properties (description, docUrl, sections and defaultValue), instead getDocumentationTarget method should be overridden and the new PolySymbolDocumentationTarget.create method used to lazily build documentation for the symbol
PolySymbol no longer has abstract, required and virtual properties. They've been replaced by a more generic modifiers property
PolySymbol no longer has properties property, which returned a map of properties. It's been replaced by get method, which should return value for the requested property.
PolySymbol no longer has attributeValue property, instead get method should be overridden to return the value for com.intellij.polySymbols.html.PROP_HTML_ATTRIBUTE_VALUE property
The WebSymbolsQueryConfigurator$getScope has been removed and replaced with a pattern-based PolySymbolQueryScopeContributor API
The PolySymbolDelegate and PsiSourcePolySymbolDelegate are interfaces now
All APIs have been refactored to use PolySymbolQualifiedKind instead of separate parameters namespace and kind
Builder patterns have been introduced in various classes, like PolySymbolQueryExecutor, PolySymbolQueryParams, or PolySymbolDocumentation instead of now removed Kotlin methods with default parameters.
Please note that the module is under active development and further major API changes are to be expected in the upcoming releases.
com.intellij.packageChecker.api.PackageDeclaration(Package) method parameter type changed from org.jetbrains.security.package.Package to com.intellij.packageChecker.model.Package
Use com.intellij.packageChecker.model.Package as a parameter.
com.intellij.packageChecker.api.PackageDeclaration(Package, PsiElement, TextRange) method parameter type changed from org.jetbrains.security.package.Package to com.intellij.packageChecker.model.Package
Use com.intellij.packageChecker.model.Package as a parameter.
com.intellij.packageChecker.api.PackageDeclaration.getPkg() method return type changed from org.jetbrains.security.package.Package to com.intellij.packageChecker.model.Package
Update code usages.
com.intellij.packageChecker.PackagesInterner.intern(Package) method parameter type changed from org.jetbrains.security.package.Package to com.intellij.packageChecker.model.Package
Use com.intellij.packageChecker.model.Package as a parameter.
com.intellij.packageChecker.PackagesInterner.intern(Package) method return type changed from org.jetbrains.security.package.Package to com.intellij.packageChecker.model.Package
Update code usages.
com.intellij.lang.javascript.JSStubElementTypes.DEFINITION_EXPRESSION field type changed from com.intellij.lang.javascript.psi.JSStubElementType to com.intellij.lang.javascript.psi.JSElementType
Recompile code usages.
com.intellij.lang.javascript.JSStubElementTypes.XML_ATTRIBUTE field type changed from com.intellij.psi.stubs.IStubElementType to com.intellij.psi.tree.IElementType
Recompile code usages.
com.intellij.lang.javascript.JSStubElementTypes.XML_JS_SCRIPT field type changed from com.intellij.psi.tree.IElementType to com.intellij.lang.javascript.psi.JSElementType
Recompile code usages.
com.intellij.lang.javascript.JSStubElementTypes.ES6_EMBEDDED_CONTENT field type changed from com.intellij.psi.tree.IElementType to com.intellij.lang.javascript.psi.JSElementType
Recompile code usages.
com.intellij.lang.javascript.JSStubElementTypes.VARIABLE field type changed from com.intellij.lang.javascript.psi.JSStubElementType to com.intellij.lang.javascript.psi.JSElementType
Recompile code usages.
com.intellij.lang.javascript.JSStubElementTypes.LITERAL_EXPRESSION field type changed from com.intellij.lang.javascript.psi.JSStubElementType to com.intellij.lang.javascript.psi.JSElementType
Recompile code usages.
com.intellij.lang.javascript.JSStubElementTypes.EMBEDDED_EXPRESSION field type changed from com.intellij.psi.tree.IElementType to com.intellij.lang.javascript.psi.JSElementType
Recompile code usages.
com.intellij.lang.typescript.TypeScriptStubElementTypes.TYPESCRIPT_VARIABLE field type changed from com.intellij.lang.javascript.psi.JSStubElementType to com.intellij.lang.javascript.psi.JSElementType
Recompile code usages.
com.intellij.lang.javascript.JSStubElementTypes.ARRAY_LITERAL_EXPRESSION field type changed from com.intellij.lang.javascript.psi.JSStubElementType to com.intellij.lang.javascript.psi.JSElementType
Recompile code usages.
com.intellij.lang.javascript.JSStubElementTypes.CALL_EXPRESSION field type changed from com.intellij.lang.javascript.psi.JSStubElementType to com.intellij.lang.javascript.psi.JSElementType
Recompile code usages.
com.intellij.lang.ecmascript6.ES6StubElementTypes.FIELD_STATEMENT field type changed from com.intellij.lang.javascript.psi.JSStubElementType to com.intellij.lang.javascript.psi.JSElementType
Recompile code usages.
com.intellij.lang.javascript.JSStubElementTypes.EMBEDDED_CONTENT field type changed from com.intellij.psi.tree.IElementType to com.intellij.lang.javascript.psi.JSElementType
Recompile code usages.
org.jetbrains.vuejs.lang.expr.VueJSLanguage.Companion class removed
Use org.jetbrains.vuejs.lang.expr.VueJSLanguage instead.
com.intellij.kubernetes.api.KubernetesApiProvider.getInstance(Project) method return type changed from com.intellij.kubernetes.api.KubernetesApiProvider to com.intellij.kubernetes.api.KubernetesApiProviderInterface
Update code usages.
com.intellij.kubernetes.api.KubernetesApiProvider.Stateclass renamed to com.intellij.kubernetes.api.KubernetesApiProviderInterface.KubeconfigState
Update code usages.
SwingUtilities.invokeLater and SwingUtilities.invokeAndWait does not hold the write-intent lock
Consider using an explicit wrapping with ReadAction.compute() or WriteAction.run(ThrowableRunnable<E>). See Threading Model.
Dispatchers.Main do not hold the write-intent lock
To restore the old behavior, consider using Dispatchers.EDT. See Threading Model.
com.intellij.psi.xml.XmlTokenType class now interface
Use XmlTokenType constants directly.
com.intellij.psi.xml.XmlElementType no longer extends com.intellij.psi.xml.XmlTokenType
Update code usages.
filetype.xml.description property removed from resource bundle messages.XmlPsiBundle
Use property from resource bundle messages.XmlParserBundle
xml.parsing.closing.tag.matches.nothing property removed from resource bundle messages.XmlPsiBundle
Use property from resource bundle messages.XmlParserBundle
xml.parsing.unclosed.attribute.value property removed from resource bundle messages.XmlPsiBundle
Use property from resource bundle messages.XmlParserBundle
xml.parsing.unescaped.ampersand.or.nonterminated.character.entity.reference property removed from resource bundle messages.XmlPsiBundle
Use property from resource bundle messages.XmlParserBundle
com.intellij.database.view.models package removed
Old table modification dialog was finally removed. Use com.intellij.database.actions.ddl.ModifyObjectAction.showDialog() for new dialog invocation.
com.intellij.database.schemaEditor.model.DeObject class removed
Old table modification dialog was finally removed. Use com.intellij.database.actions.ddl.ModifyObjectAction.showDialog() for new dialog invocation.
com.intellij.database.view.editors.DatabaseEditorContext class removed
Old table modification dialog was finally removed. Use com.intellij.database.actions.ddl.ModifyObjectAction.showDialog() for new dialog invocation.
com.intellij.database.view.editors.DatabaseTableEditor class removed
Old table modification dialog was finally removed. Use com.intellij.database.actions.ddl.ModifyObjectAction.showDialog() for new dialog invocation.
com.intellij.database.view.ui.DbRefactoringDialogHelper class removed
Old table modification dialog was finally removed. Use com.intellij.database.actions.ddl.ModifyObjectAction.showDialog() for new dialog invocation.
com.intellij.database.view.ui.DbTableDialog class removed
Old table modification dialog was finally removed. Use com.intellij.database.actions.ddl.ModifyObjectAction.showDialog() for new dialog invocation.
com.intellij.openapi.externalSystem.service.internal.ExternalSystemProcessingManager class now interface
Recompile code usages.
com.intellij.lang.javascript.service.JSAsyncLanguageServiceBase.JSLanguageServiceInfoReporter class moved to package com.intellij.lang.javascript.service
Update all usages
com.intellij.lang.javascript.JSElementTypes.toModuleContentType(IElementType type) method removed
Use com.intellij.lang.javascript.JSModuleContentType.toModuleContentType(IElementType type) method instead
com.intellij.lang.javascript.BaseJSTokenTypes class removed
Use com.intellij.lang.javascript.JSTokenTypes class instead
com.intellij.lang.javascript.highlighting.TypeScriptHighlighter(DialectOptionHolder dialectOptionsHolder, boolean skipKeywordHighlights) constructor removed
Use constructor without skipKeywordHighlights parameter
com.intellij.lang.javascript.dialects.ECMA6SyntaxHighlighterFactory.ECMA6SyntaxHighlighter(DialectOptionHolder dialectOptionsHolder, boolean skipKeywordHighlights) constructor removed
Use constructor without skipKeywordHighlights parameter
com.intellij.lang.javascript.highlighting.JSHighlighter(DialectOptionHolder dialectOptionsHolder, boolean skipKeywordHighlights) constructor removed
Use constructor without skipKeywordHighlights parameter
org.jetbrains.kotlin.KtFakeSourceElement class renamed to org.jetbrains.kotlin.KtFakePsiSourceElement
Update code usages.
org.jetbrains.kotlin.ir.linkage.IrDeserializer.IrLinkerExtension class removed
This class was removed from the Kotlin compiler and is no longer available.
org.jetbrains.kotlin.ir.builders.TranslationPluginContext class removed
This class was removed from the Kotlin compiler and is no longer available.
org.jetbrains.kotlin.analysis.decompiler.stub.file.ClsClassFinder.isKotlinInternalCompiledFile$default(ClsClassFinder, VirtualFile, byte[], int, Object) method removed
Recompile code usages.
com.jetbrains.rd.ide.model.AddToGroupRuleModel class removed
Remove all usages.
com.jetbrains.rd.ide.model.ActionConstraintModel class removed
Remove all usages.
com.jediterm.terminal.model.TextBufferChangesListener.historyCleared() abstract method added
Must be implemented.
com.intellij.terminal.ui.TerminalWidget.connectToSession(TerminalSession session) abstract method added
Must be implemented.
com.intellij.terminal.ui.TerminalWidget.getSession() abstract method added
Must be implemented.
com.intellij.terminal.ui.TerminalWidget.getTerminalSizeInitializedFuture() abstract method added
Must be implemented.
07 August 2025
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