Added

• Cache a serialized IDE layout index and reuse it for bundled plugin/module dependency resolution, test runtime classpath collection, and printBundledPlugins/printBundledModules.

Fixed

• Avoid resolving the JetBrains Runtime for buildSearchableOptions when searchable options are skipped, while keeping JBR resolution for tests and IDE run tasks.
• Refactor Kotlin JVM toolchain configuration into a dedicated utility and add an isolation test for Kotlin Gradle API links.
• Dependency verification fails because of a "corrupted" asc because of ivy misconfiguration #2140
• Include $legacy_jps_module namespace in module descriptor handling and update related tests

Added

• Apply Gradle Changelog Plugin conventions automatically when org.jetbrains.changelog is present, including default changelog extension values, changeNotes, and publishPlugin wiring.
• Supported upcoming changes in module-descriptors.jar format in 262.* IDEs.
• Skip buildSearchableOptions when the main plugin descriptor and included module descriptors do not declare Configurable extension points.
• Add org.jetbrains.intellij.platform.forceBuildSearchableOptions Gradle property to force buildSearchableOptions to run even when automatic detection would skip it.
• Added support for testing Jupyter and Notebooks by introducing new test frameworks: TestFrameworkType.Plugin.Jupyter and TestFrameworkType.Plugin.Notebook
• Add pluginComposedModule dependency support and extend regression test for multi-module projects

Changed

• Expand default failureLevel list in PluginVerification to include internal and override-only API usages.
• Reduce CollectorTransformer and module descriptor processing overhead by replacing generic module-descriptors.jar XML deserialization with a lightweight shared parser.
• Introduce ProductReleasesService, add caching for release resolution, and refactor release filtering logic.
• Cache Android Studio download-link and JetBrains Client build-number value source lookups across repeated resolution in the same build.
• Add shared plugin.xml parsing cache and reuse it across plugin verification, searchable options, and IDE run argument preparation.
• Avoid wiring initializeIntellijPlatformPlugin into module project tasks and trim unused task preconfiguration from the self-update path.
• Avoid rewriting unchanged sandbox and generated XML/manifest files when their content stays the same.
• Refactor GenerateManifestTask to replace ProductInfo with explicit platform properties (platformType, platformVersion, platformBuild)

Fixed

• Fixed incorrectly calculated module descriptor coordinates used for excluding transitive dependencies. #2127
• Refactor ComposedJarTask module naming logic and remove redundant test method from IntelliJPlatformTestingExtensionTest. #2124
• Replace hardcoded "com.intellij" with centralized IDEA_CORE constant in dependency resolution and filtering logic. #2137
• Refactor IntelliJ Gradle plugin to improve Java and Kotlin toolchain configuration handling, ensuring proper defaults and streamlined overrides. #2120

Breaking Changes

• Default intellijPlatform.pluginConfiguration.ideaVersion.sinceBuild to the target IntelliJ Platform major build instead of major.minor; explicitly setting it to the major value is now redundant and can be removed.
• Apply intellijPlatform.pluginVerification.ides.recommended() by default when no IntelliJ Plugin Verifier IDEs are configured explicitly.
• Default intellijPlatform.signing.certificateChain, intellijPlatform.signing.privateKey, intellijPlatform.signing.password, and intellijPlatform.publishing.token to the Plugin Template environment variables: CERTIFICATE_CHAIN, PRIVATE_KEY, PRIVATE_KEY_PASSWORD, and PUBLISH_TOKEN.

Added

• Add org.jetbrains.intellij.platform.verifyPluginDefaultRecommendedIdes Gradle property to control automatic default IDE selection for the verifyPlugin task.
• Add intellijPlatform.pluginVerification.ides.current() helper to refer to the currently targeted IntelliJ Platform.
• Add intellijPlatform.pluginVerification.ides.latest() helper to resolve the latest IDE release for each selected type.
• Add default value for targetRootOutputDir of GenerateParserTask.
• Add properties targetRootOutputDir and packageName (with defaults) for GenerateLexerTask. These properties replace targetOutputDir and automatically use a proper subdirectory matching the package.
• Default the Java toolchain language version to the Java version required by the targeted IntelliJ Platform, so common Kotlin JVM projects no longer need to repeat kotlin { jvmToolchain(...) }.

Changed

• Automatically inherit the root project's targeted IntelliJ Platform in org.jetbrains.intellij.platform.module subprojects when they do not declare their own platform dependency explicitly.
• Automatically package project dependencies on org.jetbrains.intellij.platform.module subprojects to lib/modules; explicit pluginModule(implementation(project(...))) is no longer required in the common case.
• Deprecate property targetOutputDir of GenerateLexerTask.
• Deprecate properties pathToParser and pathToPsiRoot of GenerateParserTask.
• Purge stale files GenerateLexerTask and GenerateParserTask by default (as soon as you stop using the deprecated properties).
• Deprecate targetFile(String) and targetFile(Provider) of GenerateLexerTask.
• Deprecate parserFile() and psiDir() of GenerateParserTask.
• Update minimal IntelliJ platform version to 2023.3 and build number to 233

Fixed

• Fix NoClassDefFoundError: org.jetbrains.kotlin.gradle.tasks.KotlinCompile when org.jetbrains.kotlin.plugin.compose is applied together with module plugin.
• Update module descriptor parsing to support additional dependency attributes, adjust tests accordingly, and configure XML decoding to ignore unknown child elements.

Fixed

• Hotfix for Grammar-Kit support on Windows

Added

• Mark the intellijPlatformDistribution outgoing artifact as builtBy with jarSearchableOptionsTaskProvider and prepareSandboxTaskProvider
• Set rider.tests.plugin.home.path system property to root project directory
• Add cleanSandbox task to remove sandbox data generated for the current project

Fixed

• Include project.name in sandbox path configuration.
• Refactor code to optimize resource handling, improve regex reusability, and enhance readability across multiple modules.
• Replace createJFlex with createGrammarKit in addGrammarKitDependency dependency helper
• Update recommended helper to use addIntelliJPluginVerifierIdes to always resolve IDE installers.

Added

• Add org.jetbrains.intellij.platform.grammarkit plugin with generateLexer/generateParser tasks.
• Add intellijPlatform.grammarKit(...)/intellijPlatform.jflex(...) dependency helpers for Grammar Kit and JFlex tooling.
• Add printBundledModules task to print bundled modules available within the currently targeted IntelliJ Platform.
• Expand TestFrameworkType with CLion test framework.

Changed

• Move sandbox directory from build/idea-sandbox to .intellijPlatform/sandbox; it's path is accessible for reading and adjusting with intellijPlatform.sandboxContainer
• Update minimal supported Gradle version to 9.0.0
• Update PlatformKotlinVersions with Kotlin 2.3.10 for version 261

Fixed

• Refactor the Android Studio dependency resolution to handle the new archive name convention. #2087
• Avoid full Ivy module deserialization in LocalIvyArtifactPathComponentMetadataRule and parse only publication artifacts to prevent recursive lookup failures on bundled plugin descriptors.
• Accept namespace and visibility attributes when parsing module-descriptor.xml files in ModuleDescriptorsValueSource.
• Fixed credentials handling for custom plugin repositories.
• Request io.smallrye.common:smallrye-common-cpu undertow's transitive dependency in at least 2.10.0 version as it causes configuration cache issue by calling /usr/sbin/sysctl -n hw.cachelinesize when defining custom plugin repositories.
• Android Studio dependency resolution: improve version handling, prioritize local dependencies, and enhance test coverage

Removed

• Remove org.jetbrains.intellij.platform.migration plugin and migration-only compatibility helpers: IntelliJExtension, DownloadRobotServerPluginTask, RunIdeForUiTestsTask
• Remove deprecated dependency helper overloads that accepted useInstaller/productMode; use create(..., configure) with a configuration lambda instead.
• Remove deprecated compatibility aliases and helpers: pluginVerification.ides.ide(...)/ides(...), intellijPlatform.cachePath, verifyPlugin/VerifyPlugin, useCustomCache, instrumentationTools(), and discontinued product helpers aqua(...)/writerside(...).

Added

• Add --compose-hot-reload argument for RunIdeTask task that enables Compose Hot Reload agent.
• Add new provider-based API create methods for Plugin Verifier used IDEs configuration, a fallback .orRecommended() helper, and update integration tests. #2077

Fixed

• Fix the execution of JavaExec based tasks when the class path gets shortened.
• Include IU and PY releases when resolving Plugin Verifier compatible IDEs while requesting IC or PC for versions 2025.3 (253) and later.
• Fix ProductReleasesValueSource to correctly handle and preserve 4-component version numbers (e.g., 2025.3.1.1) when resolving IDE releases.

Added

• Add org.jetbrains.intellij.deps.kotlinx as a kotlinx.coroutines shadowed dependency group eligible for exclusion.
• Expand TestFrameworkType with additional frameworks including Debugger, ExternalSystem, PolySymbols, Qodana, UAST, VCS, and WebSymbols.
• Introduce org.jetbrains.intellij.platform.intellijPlatformIdesCacheEnabled Gradle property to control IntelliJ Platform IDEs caching globally via intellijPlatform.caching.ides.enabled convention.

Changed

• Replace exception with a warning for unknown input paths in CollectorTransformer.

Fixed

• Fix Path.deepResolve to correctly resolve singleOrNull entries.
• Fix JetBrains Runtime architecture detection for Linux ARM64 systems #2054

Added

• Add bundledPlugin(id: String) helper to IntelliJPlatformPluginsExtension

Fixed

• Use withRandomSuffix for intellijPlatformConfigurationName in local dependency configurations defined for Plugin Verifier

Added

• Add --list-ides CLI option to verifyPlugin task to list IDEs that will be used for verification without performing actual verification.

Fixed

• Security update