# Snippets {is-library="true"} > If a topic you are interested in is not covered in the above sections, let us know via the **Was this page helpful?** feedback form below or [other channels](getting_help.topic#problems-with-the-guide). > > Please be specific about the topics and reasons for adding them, and leave your email in case we need more details. Thanks for your feedback! > {title="Something missing?" style="note"} > [Subscribe to Marketplace Developer News](https://jb.gg/mp-updates) to receive news and announcements. > Also follow [JBPlatform](https://twitter.com/JBPlatform/) on Twitter and visit [JetBrains Platform Blog](https://blog.jetbrains.com/platform/). > {title="Staying up to date"} > Qualifying Open Source projects can [apply for free licenses](https://www.jetbrains.com/community/opensource/) of JetBrains products. **IDE**: [Homepage](https://www.jetbrains.com/%productID%), [Versions](https://www.jetbrains.com/%productID%/download/other.html) **Plugins**: [JetBrains Marketplace](https://plugins.jetbrains.com/%marketplaceProductID%) Please see [](verifying_plugin_compatibility.md) on how to use Plugin Verifier and IDE inspections to check such problems. _Early Access Program_ (EAP) releases of upcoming versions are available [here](https://eap.jetbrains.com). > Changes from API marked with `@Deprecated(forRemoval=true)` or any of [`org.jetbrains.annotations.ApiStatus`](https://github.com/JetBrains/java-annotations/blob/master/common/src/main/java/org/jetbrains/annotations/ApiStatus.java) `@Experimental`, `@ScheduledForRemoval`, or `@Internal` are not listed here, as incompatible changes are to be expected. > > For API annotated with `ApiStatus.@Internal`/`@IntellijInternalApi`, see [](api_internal.md) for more details and replacements. > {title="Non-listed changes" style="note"} > Java 17 is required ([blog post](https://blog.jetbrains.com/platform/2022/08/intellij-project-migrates-to-java-17/)) when targeting 2022.2 or later only. > > Java 11 is required ([blog post](https://blog.jetbrains.com/platform/2020/09/intellij-project-migrates-to-java-11/)) when targeting 2020.3 and later only. > > Please make sure to always upgrade `gradle-intellij-plugin` to the latest version [%gradle-intellij-plugin-version%](https://github.com/jetbrains/gradle-intellij-plugin/releases) > {style="note"} > See [](plugin_extensions.md) on how to declare extensions in your plugin. > > See [](plugin_listeners.md) on how to register listeners. > ## Legend ### Listeners **Topic** searches for usages inside existing implementations of open-source IntelliJ Platform plugins via [IntelliJ Platform Explorer](https://jb.gg/ipe). **Listener** links corresponding listener to implement. ### Extension Points **Extension Point** searches for usages inside existing implementations of open-source IntelliJ Platform plugins via [IntelliJ Platform Explorer](https://jb.gg/ipe). **Implementation** is related Extension Point class. ### Tags See [](verifying_plugin_compatibility.md) for overview of API status. | Icon | Description | Details | |-----------------------------------|-------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ![Deprecated][deprecated] | Deprecated API | Please see code documentation for replacement | | ![Removal][removal] | Scheduled for Removal API | Please see code documentation for replacement | | ![Obsolete][obsolete] | Obsolete API | Do not use in new code, please see code documentation for replacement ([](verifying_plugin_compatibility.md#obsolete-api)) | | ![Experimental API][experimental] | Experimental API | Annotated with [`@ApiStatus.Experimental`](https://github.com/JetBrains/java-annotations/blob/master/common/src/main/java/org/jetbrains/annotations/ApiStatus.java), API might be altered or removed without prior notice | | ![Internal API][internal] | Internal API | Annotated with [`@ApiStatus.Internal`](https://github.com/JetBrains/java-annotations/blob/master/common/src/main/java/org/jetbrains/annotations/ApiStatus.java), must not be used by 3rd party, see [](api_internal.md) | | ![Project-Level][project-level] | Project-Level Extension Point/Topic |

Can have [`Project`](%gh-ic%/platform/core-api/src/com/intellij/openapi/project/Project.java) as constructor parameter

Extension Point: Declared with `area="IDEA_PROJECT"`

Listener: registered in [``](plugin_configuration_file.md#idea-plugin__projectListeners)

| | ![Non-Dynamic][non-dynamic] | Non-Dynamic Extension Point | Installation/update of plugin requires IDE restart ([Dynamic Plugins](dynamic_plugins.md)) | [deprecated]: https://img.shields.io/badge/-Deprecated-lightgrey?style=flat-square [removal]: https://img.shields.io/badge/-Removal-red?style=flat-square [obsolete]: https://img.shields.io/badge/-Obsolete-grey?style=flat-square [experimental]: https://img.shields.io/badge/-Experimental-violet?style=flat-square [internal]: https://img.shields.io/badge/-Internal-darkred?style=flat-square [project-level]: https://img.shields.io/badge/-Project--Level-blue?style=flat-square [non-dynamic]: https://img.shields.io/badge/-Non--Dynamic-orange?style=flat-square