diff --git a/docs/05-plugin-development.md b/docs/05-plugin-development.md
index f99222892c7..090231ab9af 100644
--- a/docs/05-plugin-development.md
+++ b/docs/05-plugin-development.md
@@ -64,6 +64,12 @@ export default ({
 
 The name of the plugin, for use in error messages and warnings.
 
+#### `version?`
+
+**Type:** `string | undefined`
+
+The version of the plugin, for use in inter-plugin communication scenarios.
+
 ### Build Hooks
 
 To interact with the build process, your plugin object includes "hooks". Hooks are functions which are called at various stages of the build. Hooks can affect how a build is run, provide information about a build, or modify a build once complete. There are different kinds of hooks:
diff --git a/src/rollup/types.d.ts b/src/rollup/types.d.ts
index 103e6b6e9e5..fa83d22b987 100644
--- a/src/rollup/types.d.ts
+++ b/src/rollup/types.d.ts
@@ -456,6 +456,7 @@ export interface OutputPlugin
 		Partial<{ [K in AddonHooks]: ObjectHook<AddonHook> }> {
 	cacheKey?: string;
 	name: string;
+	version?: string;
 }
 
 export interface Plugin extends OutputPlugin, Partial<PluginHooks> {