diff --git a/data/deprecations/17-8-deprecation-workspaces-editor-graphql-field.yml b/data/deprecations/17-8-deprecation-workspaces-editor-graphql-field.yml
new file mode 100644
index 0000000000000000000000000000000000000000..e15466c7397609a871996857249bf706dbef8364
--- /dev/null
+++ b/data/deprecations/17-8-deprecation-workspaces-editor-graphql-field.yml
@@ -0,0 +1,45 @@
+- title: "Workspaces `editor` GraphQL field is deprecated"
+  # The milestones for the deprecation announcement, and the removal.
+  removal_milestone: "18.0"
+  announcement_milestone: "17.8"
+  # Change breaking_change to false if needed.
+  breaking_change: true
+  reporter: saahmed
+  stage: create
+  issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/508155
+  # Use the impact calculator https://gitlab-com.gitlab.io/gl-infra/breaking-change-impact-calculator/?
+  impact: low
+  scope: project
+  window: 1
+  resolution_role:  # Can be one of: [Admin, Owner, Maintainer, Developer]
+  manual_task: true
+  body: |  # (required) Don't change this line.
+    The `editor` field is not used internally. It will be deprecated in the following GraphQL elements:
+
+    - `Workspace` type.
+    - Input to `workspaceCreate` mutation.
+
+    To prepare for this change:
+
+    - Review and update your GraphQL queries that interact with the `Workspace` type.
+    - Remove any references to the `editor` field.
+    - Adjust your application logic accordingly.
+
+  # ==============================
+  # OPTIONAL END-OF-SUPPORT FIELDS
+  # ==============================
+  #
+  # If an End of Support period applies:
+  # 1) Share this announcement in the `#spt_managers` Support channel in Slack
+  # 2) Mention `@gitlab-com/support` in this merge request.
+  #
+  # When support for this feature ends, in XX.YY milestone format.
+  end_of_support_milestone:
+  # Array of tiers the feature is currently available to,
+  # like [Free, Silver, Gold, Core, Premium, Ultimate]
+  tiers:
+  # Links to documentation and thumbnail image
+  documentation_url:
+  image_url:
+  # Use the youtube thumbnail URL with the structure of https://img.youtube.com/vi/UNIQUEID/hqdefault.jpg
+  video_url:
diff --git a/doc/update/breaking_windows.md b/doc/update/breaking_windows.md
index 8d271073ffb0cc4e9db74dd2a44227b2edfc4190..d06a0c645e9738dbb5acdc77cd5b5566ea0ebecf 100644
--- a/doc/update/breaking_windows.md
+++ b/doc/update/breaking_windows.md
@@ -42,6 +42,7 @@ This window takes place on April 21 - 23, 2025 from 09:00 UTC to 22:00 UTC.
 | [Deprecation of `name` field in `ProjectMonthlyUsageType` GraphQL API](https://gitlab.com/gitlab-org/gitlab/-/issues/381894) | Low | Fulfillment | Project |
 | [Rename 'setPreReceiveSecretDetection' GraphQL mutation to 'setSecretPushProtection'](https://gitlab.com/gitlab-org/gitlab/-/issues/462504) | Low | Application_security_testing | Project |
 | [Deprecation of `STORAGE` enum in `NamespaceProjectSortEnum` GraphQL API](https://gitlab.com/gitlab-org/gitlab/-/issues/396284) | Low | Fulfillment | Group |
+| [Workspaces `editor` GraphQL field is deprecated](https://gitlab.com/gitlab-org/gitlab/-/issues/508155) | Low | Create | Project |
 
 ## Window 2
 
diff --git a/doc/update/deprecations.md b/doc/update/deprecations.md
index 2de0c864ddaa7b21dba0b3cb51e5eda24d73b615..ed64caf3f821e80c52c14847c92890962ca35115 100644
--- a/doc/update/deprecations.md
+++ b/doc/update/deprecations.md
@@ -1197,6 +1197,31 @@ Toggling notes confidentiality with REST and GraphQL APIs is being deprecated. U
 
 <div class="deprecation breaking-change" data-milestone="18.0">
 
+### Workspaces `editor` GraphQL field is deprecated
+
+<div class="deprecation-notes">
+
+- Announced in GitLab <span class="milestone">17.8</span>
+- Removal in GitLab <span class="milestone">18.0</span> ([breaking change](https://docs.gitlab.com/ee/update/terminology.html#breaking-change))
+- To discuss this change or learn more, see the [deprecation issue](https://gitlab.com/gitlab-org/gitlab/-/issues/508155).
+
+</div>
+
+The `editor` field is not used internally. It will be deprecated in the following GraphQL elements:
+
+- `Workspace` type.
+- Input to `workspaceCreate` mutation.
+
+To prepare for this change:
+
+- Review and update your GraphQL queries that interact with the `Workspace` type.
+- Remove any references to the `editor` field.
+- Adjust your application logic accordingly.
+
+</div>
+
+<div class="deprecation breaking-change" data-milestone="18.0">
+
 ### ZenTao integration
 
 <div class="deprecation-notes">