diff --git a/packages/core-plugin-api/api-report.md b/packages/core-plugin-api/api-report.md
index 0347b4b018..575d0b755f 100644
--- a/packages/core-plugin-api/api-report.md
+++ b/packages/core-plugin-api/api-report.md
@@ -683,13 +683,9 @@ export const oauthRequestApiRef: ApiRef<OAuthRequestApi>;
 // @public
 export type OAuthScope = string | string[];
 
-// Warning: (ae-missing-release-tag) "Observable" is exported by the package, but it is missing a release tag (@alpha, @beta, @public, or @internal)
-//
 // @public @deprecated
 export type Observable<T> = Observable_2<T>;
 
-// Warning: (ae-missing-release-tag) "Observer" is exported by the package, but it is missing a release tag (@alpha, @beta, @public, or @internal)
-//
 // @public @deprecated
 export type Observer<T> = Observer_2<T>;
 
@@ -897,8 +893,6 @@ export type SubRouteRef<Params extends AnyParams = any> = {
   params: ParamKeys<Params>;
 };
 
-// Warning: (ae-missing-release-tag) "Subscription" is exported by the package, but it is missing a release tag (@alpha, @beta, @public, or @internal)
-//
 // @public @deprecated
 export type Subscription = Subscription_2;
 
diff --git a/packages/core-plugin-api/src/deprecatedTypes.ts b/packages/core-plugin-api/src/deprecatedTypes.ts
index 605dc72ee3..4b24614e17 100644
--- a/packages/core-plugin-api/src/deprecatedTypes.ts
+++ b/packages/core-plugin-api/src/deprecatedTypes.ts
@@ -23,6 +23,7 @@ import {
 /**
  * Observer interface for consuming an Observer, see TC39.
  *
+ * @public
  * @deprecated Please use the same type from `@backstage/types` instead
  */
 export type Observer<T> = CoreObserver<T>;
@@ -30,6 +31,7 @@ export type Observer<T> = CoreObserver<T>;
 /**
  * Subscription returned when subscribing to an Observable, see TC39.
  *
+ * @public
  * @deprecated Please use the same type from `@backstage/types` instead
  */
 export type Subscription = CoreSubscription;
@@ -42,6 +44,7 @@ export type Subscription = CoreSubscription;
  * This is used as a common return type for observable values and can be created
  * using many different observable implementations, such as zen-observable or RxJS 5.
  *
+ * @public
  * @deprecated Please use the same type from `@backstage/types` instead
  */
 export type Observable<T> = CoreObservable<T>;