Update Epic badge info in API pages

doc/api/epic_issues.md

@@ -4,13 +4,15 @@ group: Portfolio Management
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
 ---
 
-# Epic Issues API **(ULTIMATE)**
+# Epic Issues API **(PREMIUM)**
 
 Every API call to epic_issues must be authenticated.
 
-If a user is not a member of a group and the group is private, a `GET` request on that group will result to a `404` status code.
+If a user is not a member of a group and the group is private, a `GET` request on that group will
+result in a `404` status code.
 
-Epics are available only in Ultimate. If epics feature is not available a `403` status code will be returned.
+Epics are available only in GitLab [Premium and higher](https://about.gitlab.com/pricing/).
+If the Epics feature is not available, a `403` status code will be returned.
 
 ## List issues for an epic
 

doc/api/epic_links.md

@@ -9,7 +9,8 @@ Every API call to `epic_links` must be authenticated.
 
 If a user is not a member of a group and the group is private, a `GET` request on that group will result to a `404` status code.
 
-Epics are available only in the [Ultimate/Gold tier](https://about.gitlab.com/pricing/). If the epics feature is not available, a `403` status code will be returned.
+Multi-level Epics are available only in GitLab [Ultimate/Gold](https://about.gitlab.com/pricing/).
+If the Multi-level Epics feature is not available, a `403` status code will be returned.
 
 ## List epics related to a given epic
 

doc/api/issues.md

@@ -620,7 +620,7 @@ the `weight` parameter:
 }
 ```
 
-Users on GitLab [Ultimate](https://about.gitlab.com/pricing/) will additionally see
+Users on GitLab [Premium](https://about.gitlab.com/pricing/) will additionally see
 the `epic` property:
 
 ```javascript
@@ -669,8 +669,8 @@ POST /projects/:id/issues
 | `merge_request_to_resolve_discussions_of` | integer        | no       | The IID of a merge request in which to resolve all issues. This will fill the issue with a default description and mark all discussions as resolved. When passing a description or title, these values will take precedence over the default values.|
 | `discussion_to_resolve`                   | string         | no       | The ID of a discussion to resolve. This will fill in the issue with a default description and mark the discussion as resolved. Use in combination with `merge_request_to_resolve_discussions_of`. |
 | `weight` **(STARTER)**                    | integer        | no       | The weight of the issue. Valid values are greater than or equal to 0. |
-| `epic_id` **(ULTIMATE)** | integer | no | ID of the epic to add the issue to. Valid values are greater than or equal to 0. |
-| `epic_iid` **(ULTIMATE)** | integer | no | IID of the epic to add the issue to. Valid values are greater than or equal to 0. (deprecated, [will be removed in version 5](https://gitlab.com/gitlab-org/gitlab/-/issues/35157)) |
+| `epic_id` **(PREMIUM)** | integer | no | ID of the epic to add the issue to. Valid values are greater than or equal to 0. |
+| `epic_iid` **(PREMIUM)** | integer | no | IID of the epic to add the issue to. Valid values are greater than or equal to 0. (deprecated, [will be removed in version 5](https://gitlab.com/gitlab-org/gitlab/-/issues/35157)) |
 
 ```shell
 curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" "https://gitlab.example.com/api/v4/projects/4/issues?title=Issues%20with%20auth&labels=bug"
@@ -787,8 +787,8 @@ PUT /projects/:id/issues/:issue_iid
 | `due_date`     | string  | no       | Date time string in the format YEAR-MONTH-DAY, for example `2016-03-11`                                           |
 | `weight` **(STARTER)** | integer | no | The weight of the issue. Valid values are greater than or equal to 0. 0                                                                    |
 | `discussion_locked` | boolean | no  | Flag indicating if the issue's discussion is locked. If the discussion is locked only project members can add or edit comments. |
-| `epic_id` **(ULTIMATE)** | integer | no | ID of the epic to add the issue to. Valid values are greater than or equal to 0. |
-| `epic_iid` **(ULTIMATE)** | integer | no | IID of the epic to add the issue to. Valid values are greater than or equal to 0. (deprecated, [will be removed in version 5](https://gitlab.com/gitlab-org/gitlab/-/issues/35157)) |
+| `epic_id` **(PREMIUM)** | integer | no | ID of the epic to add the issue to. Valid values are greater than or equal to 0. |
+| `epic_iid` **(PREMIUM)** | integer | no | IID of the epic to add the issue to. Valid values are greater than or equal to 0. (deprecated, [will be removed in version 5](https://gitlab.com/gitlab-org/gitlab/-/issues/35157)) |
 
 ```shell
 curl --request PUT --header "PRIVATE-TOKEN: <your_access_token>" "https://gitlab.example.com/api/v4/projects/4/issues/85?state_event=close"