# Notable Changes in IntelliJ Platform and Plugins API 2023.*

> For the complete documentation index, see [llms.txt](https://plugins.jetbrains.com/docs/intellij/llms.txt).

Early Access Program (EAP) releases of upcoming versions are available [here](https://eap.jetbrains.com).

> **Warning: Gradle Plugin**
> The Gradle plugin must be chosen depending on the target [platform version](build-number-ranges.html#platformVersions).
>
>
>
>
> 2024.2+
> : Requires [IntelliJ Platform Gradle Plugin (2.x)](tools-intellij-platform-gradle-plugin.html)
>
>
> 2022.3+
> : Recommended [IntelliJ Platform Gradle Plugin (2.x)](tools-intellij-platform-gradle-plugin.html)
> :
> :
> :
> : Requires [Gradle IntelliJ Plugin (1.x)](tools-gradle-intellij-plugin.html) (Obsolete) 1.10.1+

## 2023.3

### IntelliJ Platform 2023.3

Threading Model changes
: Please see updated [Threading Model](threading-model.html).

External Annotators in Dumb Mode
: [External Annotator](syntax-highlighting-and-error-highlighting.html#external-annotator) can now run in during indexing.

Local inspections performance
: Custom language plugins with many inspections should consider registering a default visitor to improve processing, see [Inspections Performance](code-inspections-and-intentions.html#inspections-performance).

### IntelliJ IDEA 2023.3

Unbundled plugins
: Several plugins (Android, Ant, GlassFish, Plugin DevKit) have been unbundled. The IDE will suggest installation if the project contains related framework dependency. If a plugin depends on them, users will need to install them from the [JetBrains Marketplace](https://plugins.jetbrains.com).

## 2023.2

### IntelliJ Platform 2023.2

Language Server Protocol (LSP) API
: Provide custom language support by using language servers, see [Language Server Protocol (LSP)](language-server-protocol.html).

Check presence of JVM library
: Use [dedicated API](psi-cookbook.html#how-do-i-check-the-presence-of-a-jvm-library) to check presence via class FQN or Maven coordinates.

Inspection description: code snippets highlighting
: Embedded code is shown with [syntax highlighting](code-inspections.html#code-snippets).

Intentions that cannot show meaningful before/after preview
: Intentions not modifying code can specify `<skipBeforeAfter>true</skipBeforeAfter>` in their registration.

JCEF-based SVG viewer
: SVG pictures are now shown using [JCEF](embedded-browser-jcef.html) instead of rendering via the Apache Batik library ([Details](https://youtrack.jetbrains.com/issue/IDEA-230850)).

### IntelliJ IDEA 2023.2

Unbundled plugins
: Several plugins (Play 1, Resin, Struts 2, tcServer) have been unbundled. The IDE will suggest installation if the project contains related framework dependency. If a plugin depends on them, users will need to install them from the [JetBrains Marketplace](https://plugins.jetbrains.com).

## 2023.1

API for quick documentation
: [Documentation](documentation.html) for custom languages is provided through the [DocumentationTarget](https://github.com/JetBrains/intellij-community/tree/idea/263.7307.200/platform/lang-impl/src/com/intellij/platform/backend/documentation/DocumentationTarget.kt) API for versions 2023.1 or later.

### IntelliJ Platform 2023.1

Declarative Inspection Options
: [Code inspections](code-inspections.html) can provide additional options in a [declarative](inspection-options.html#declarative-inspection-options) way which has several benefits over the [UI-based](inspection-options.html#ui-based-inspection-options) approach.

Nested Index Access
: Accessing index data in [nested calls](file-based-indexes.html#nested-index-access) is now possible. NOTE: Please do not use yet This is known to cause problems under certain conditions, please watch this [issue](https://youtrack.jetbrains.com/issue/IJPL-265/Nested-index-lookups-still-leads-to-deadlocks).

File Type Index Topic
: [FileTypeIndex.IndexChangeListener](https://github.com/JetBrains/intellij-community/tree/idea/263.7307.200/platform/indexing-api/src/com/intellij/psi/search/FileTypeIndex.java) allows monitoring the addition/removal of files by `FileType`.

Run Annotator During Indexing
: [Annotators](syntax-highlighting-and-error-highlighting.html#annotator) can implement `DumbAware` to run during indexing (e.g., providing additional syntax highlighting).

Obsolete API Status
: Newly introduced `@ApiStatus.Obsolete` marks API that should not be used for new code, see [Obsolete API](verifying-plugin-compatibility.html#obsolete-api).