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plugin_extensions: cleanup old "since..." note

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Yann Cébron 2025-04-29 16:56:37 +02:00
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topics/basics/plugin_structure/plugin_extensions.md
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@ -16,7 +16,7 @@ The following are some of the most common tasks achieved using extensions:
* The <include from="snippets.topic" element-id="ep"><var name="ep" value="com.intellij.applicationConfigurable"/></include> and <include from="snippets.topic" element-id="ep"><var name="ep" value="com.intellij.projectConfigurable"/></include> allow plugins to add pages to the [Settings dialog](settings.md);
* [Custom language plugins](custom_language_support.md) use many extension points to extend various language support features in the IDE.
There are more than 1600 extension points available in the platform and the bundled plugins, allowing customizing different parts of the IDE behavior.
There are more than 1700 extension points available in the platform and the bundled plugins, allowing customizing different parts of the IDE behavior.
## Exploring Available Extensions
@ -111,11 +111,10 @@ When using [Kotlin](using_kotlin.md):
Several tooling features are available to help configure bean class extension points in <path>plugin.xml</path>.
#### Required Properties
<primary-label ref="2019.3"/>
Properties annotated with [`RequiredElement`](%gh-ic%/platform/core-api/src/com/intellij/openapi/extensions/RequiredElement.java) are inserted automatically and validated.
If the given property is allowed to have an explicit empty value, set `allowEmpty` to `true` (2020.3+).
If the given property is allowed to have an explicit empty value, set `allowEmpty` to `true`.
#### Class names
@ -138,7 +137,7 @@ A required parent type can be specified in the [extension point declaration](plu
#### Custom resolve
Property name `language` (or ending in `*Language`, 2020.2+) resolves to all present [`Language`](%gh-ic%/platform/core-api/src/com/intellij/lang/Language.java) IDs.
Property name `language` (or ending in `*Language`) resolves to all present [`Language`](%gh-ic%/platform/core-api/src/com/intellij/lang/Language.java) IDs.
Similarly, `action` and `actionId` (2024.3+) resolve to all registered [`<action>`](plugin_configuration_file.md#idea-plugin__actions__action) IDs.
@ -147,11 +146,9 @@ Similarly, `action` and `actionId` (2024.3+) resolve to all registered [`<action
Properties marked as `@Deprecated` or annotated with any of [`ApiStatus`](%gh-java-annotations%/common/src/main/java/org/jetbrains/annotations/ApiStatus.java) `@Internal`, `@Experimental`, `@ScheduledForRemoval`, or `@Obsolete` will be highlighted accordingly.
#### Enum properties
<primary-label ref="2020.1"/>
Attributes with `Enum` type support code insight with _lowerCamelCased_ notation. Note: Enum implementation must not override `toString()`.
`Enum` attributes support code insight with _lowerCamelCased_ notation. Note: The `Enum` implementation must not override `toString()`.
#### I18n
<primary-label ref="2019.2"/>
Annotating with [`@Nls`](%gh-java-annotations%/common/src/main/java/org/jetbrains/annotations/Nls.java) validates a UI `String` capitalization according to the text property `Capitalization` enum value.