diff --git a/descriptions/api.github.com/api.github.com.2022-11-28.json b/descriptions/api.github.com/api.github.com.2022-11-28.json
index 7f62dafd1..4d896dc6a 100644
--- a/descriptions/api.github.com/api.github.com.2022-11-28.json
+++ b/descriptions/api.github.com/api.github.com.2022-11-28.json
@@ -94801,7 +94801,8 @@
           "updated_at": {
             "type": "string",
             "format": "date-time",
-            "description": "Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
+            "deprecated": true,
+            "description": "**Closing down notice:** This field is no longer relevant and is closing down. Use the `created_at` field to determine when the assignee was last granted access to GitHub Copilot. Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
           },
           "plan_type": {
             "type": "string",
@@ -294341,11 +294342,11 @@
         "schema": {
           "type": "string",
           "enum": [
-            "installations",
-            "classic_pats",
-            "fine_grained_pats",
-            "oauth_apps",
-            "github_apps_user_to_server"
+            "installation",
+            "classic_pat",
+            "fine_grained_pat",
+            "oauth_app",
+            "github_app_user_to_server"
           ]
         }
       },
diff --git a/descriptions/api.github.com/api.github.com.2022-11-28.yaml b/descriptions/api.github.com/api.github.com.2022-11-28.yaml
index 5b8b19483..d4994a94c 100644
--- a/descriptions/api.github.com/api.github.com.2022-11-28.yaml
+++ b/descriptions/api.github.com/api.github.com.2022-11-28.yaml
@@ -68810,8 +68810,11 @@ components:
         updated_at:
           type: string
           format: date-time
-          description: Timestamp of when the assignee's GitHub Copilot access was
-            last updated, in ISO 8601 format.
+          deprecated: true
+          description: "**Closing down notice:** This field is no longer relevant
+            and is closing down. Use the `created_at` field to determine when the
+            assignee was last granted access to GitHub Copilot. Timestamp of when
+            the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
         plan_type:
           type: string
           description: The Copilot plan of the organization, or the parent enterprise,
@@ -223589,11 +223592,11 @@ components:
       schema:
         type: string
         enum:
-        - installations
-        - classic_pats
-        - fine_grained_pats
-        - oauth_apps
-        - github_apps_user_to_server
+        - installation
+        - classic_pat
+        - fine_grained_pat
+        - oauth_app
+        - github_app_user_to_server
     api-insights-actor-id:
       name: actor_id
       in: path
diff --git a/descriptions/api.github.com/api.github.com.json b/descriptions/api.github.com/api.github.com.json
index 7f62dafd1..4d896dc6a 100644
--- a/descriptions/api.github.com/api.github.com.json
+++ b/descriptions/api.github.com/api.github.com.json
@@ -94801,7 +94801,8 @@
           "updated_at": {
             "type": "string",
             "format": "date-time",
-            "description": "Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
+            "deprecated": true,
+            "description": "**Closing down notice:** This field is no longer relevant and is closing down. Use the `created_at` field to determine when the assignee was last granted access to GitHub Copilot. Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
           },
           "plan_type": {
             "type": "string",
@@ -294341,11 +294342,11 @@
         "schema": {
           "type": "string",
           "enum": [
-            "installations",
-            "classic_pats",
-            "fine_grained_pats",
-            "oauth_apps",
-            "github_apps_user_to_server"
+            "installation",
+            "classic_pat",
+            "fine_grained_pat",
+            "oauth_app",
+            "github_app_user_to_server"
           ]
         }
       },
diff --git a/descriptions/api.github.com/api.github.com.yaml b/descriptions/api.github.com/api.github.com.yaml
index 5b8b19483..d4994a94c 100644
--- a/descriptions/api.github.com/api.github.com.yaml
+++ b/descriptions/api.github.com/api.github.com.yaml
@@ -68810,8 +68810,11 @@ components:
         updated_at:
           type: string
           format: date-time
-          description: Timestamp of when the assignee's GitHub Copilot access was
-            last updated, in ISO 8601 format.
+          deprecated: true
+          description: "**Closing down notice:** This field is no longer relevant
+            and is closing down. Use the `created_at` field to determine when the
+            assignee was last granted access to GitHub Copilot. Timestamp of when
+            the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
         plan_type:
           type: string
           description: The Copilot plan of the organization, or the parent enterprise,
@@ -223589,11 +223592,11 @@ components:
       schema:
         type: string
         enum:
-        - installations
-        - classic_pats
-        - fine_grained_pats
-        - oauth_apps
-        - github_apps_user_to_server
+        - installation
+        - classic_pat
+        - fine_grained_pat
+        - oauth_app
+        - github_app_user_to_server
     api-insights-actor-id:
       name: actor_id
       in: path
diff --git a/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json b/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json
index 7df7d70bc..1bc6929d2 100644
--- a/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json
+++ b/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json
@@ -16444,7 +16444,8 @@
                           "updated_at": {
                             "type": "string",
                             "format": "date-time",
-                            "description": "Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
+                            "deprecated": true,
+                            "description": "**Closing down notice:** This field is no longer relevant and is closing down. Use the `created_at` field to determine when the assignee was last granted access to GitHub Copilot. Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
                           },
                           "plan_type": {
                             "type": "string",
@@ -71001,7 +71002,8 @@
                           "updated_at": {
                             "type": "string",
                             "format": "date-time",
-                            "description": "Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
+                            "deprecated": true,
+                            "description": "**Closing down notice:** This field is no longer relevant and is closing down. Use the `created_at` field to determine when the assignee was last granted access to GitHub Copilot. Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
                           },
                           "plan_type": {
                             "type": "string",
@@ -82756,11 +82758,11 @@
             "schema": {
               "type": "string",
               "enum": [
-                "installations",
-                "classic_pats",
-                "fine_grained_pats",
-                "oauth_apps",
-                "github_apps_user_to_server"
+                "installation",
+                "classic_pat",
+                "fine_grained_pat",
+                "oauth_app",
+                "github_app_user_to_server"
               ]
             }
           },
@@ -83307,11 +83309,11 @@
             "schema": {
               "type": "string",
               "enum": [
-                "installations",
-                "classic_pats",
-                "fine_grained_pats",
-                "oauth_apps",
-                "github_apps_user_to_server"
+                "installation",
+                "classic_pat",
+                "fine_grained_pat",
+                "oauth_app",
+                "github_app_user_to_server"
               ]
             }
           },
@@ -83651,11 +83653,11 @@
             "schema": {
               "type": "string",
               "enum": [
-                "installations",
-                "classic_pats",
-                "fine_grained_pats",
-                "oauth_apps",
-                "github_apps_user_to_server"
+                "installation",
+                "classic_pat",
+                "fine_grained_pat",
+                "oauth_app",
+                "github_app_user_to_server"
               ]
             }
           },
@@ -94283,7 +94285,8 @@
                     "updated_at": {
                       "type": "string",
                       "format": "date-time",
-                      "description": "Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
+                      "deprecated": true,
+                      "description": "**Closing down notice:** This field is no longer relevant and is closing down. Use the `created_at` field to determine when the assignee was last granted access to GitHub Copilot. Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
                     },
                     "plan_type": {
                       "type": "string",
diff --git a/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml b/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml
index 008103f5b..9a366ad7d 100644
--- a/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml
+++ b/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml
@@ -7241,8 +7241,12 @@ paths:
                         updated_at:
                           type: string
                           format: date-time
-                          description: Timestamp of when the assignee's GitHub Copilot
-                            access was last updated, in ISO 8601 format.
+                          deprecated: true
+                          description: "**Closing down notice:** This field is no
+                            longer relevant and is closing down. Use the `created_at`
+                            field to determine when the assignee was last granted
+                            access to GitHub Copilot. Timestamp of when the assignee's
+                            GitHub Copilot access was last updated, in ISO 8601 format."
                         plan_type:
                           type: string
                           description: The Copilot plan of the organization, or the
@@ -24910,11 +24914,11 @@ paths:
         schema:
           type: string
           enum:
-          - installations
-          - classic_pats
-          - fine_grained_pats
-          - oauth_apps
-          - github_apps_user_to_server
+          - installation
+          - classic_pat
+          - fine_grained_pat
+          - oauth_app
+          - github_app_user_to_server
       - &169
         name: actor_id
         in: path
diff --git a/descriptions/api.github.com/dereferenced/api.github.com.deref.json b/descriptions/api.github.com/dereferenced/api.github.com.deref.json
index 7df7d70bc..1bc6929d2 100644
--- a/descriptions/api.github.com/dereferenced/api.github.com.deref.json
+++ b/descriptions/api.github.com/dereferenced/api.github.com.deref.json
@@ -16444,7 +16444,8 @@
                           "updated_at": {
                             "type": "string",
                             "format": "date-time",
-                            "description": "Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
+                            "deprecated": true,
+                            "description": "**Closing down notice:** This field is no longer relevant and is closing down. Use the `created_at` field to determine when the assignee was last granted access to GitHub Copilot. Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
                           },
                           "plan_type": {
                             "type": "string",
@@ -71001,7 +71002,8 @@
                           "updated_at": {
                             "type": "string",
                             "format": "date-time",
-                            "description": "Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
+                            "deprecated": true,
+                            "description": "**Closing down notice:** This field is no longer relevant and is closing down. Use the `created_at` field to determine when the assignee was last granted access to GitHub Copilot. Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
                           },
                           "plan_type": {
                             "type": "string",
@@ -82756,11 +82758,11 @@
             "schema": {
               "type": "string",
               "enum": [
-                "installations",
-                "classic_pats",
-                "fine_grained_pats",
-                "oauth_apps",
-                "github_apps_user_to_server"
+                "installation",
+                "classic_pat",
+                "fine_grained_pat",
+                "oauth_app",
+                "github_app_user_to_server"
               ]
             }
           },
@@ -83307,11 +83309,11 @@
             "schema": {
               "type": "string",
               "enum": [
-                "installations",
-                "classic_pats",
-                "fine_grained_pats",
-                "oauth_apps",
-                "github_apps_user_to_server"
+                "installation",
+                "classic_pat",
+                "fine_grained_pat",
+                "oauth_app",
+                "github_app_user_to_server"
               ]
             }
           },
@@ -83651,11 +83653,11 @@
             "schema": {
               "type": "string",
               "enum": [
-                "installations",
-                "classic_pats",
-                "fine_grained_pats",
-                "oauth_apps",
-                "github_apps_user_to_server"
+                "installation",
+                "classic_pat",
+                "fine_grained_pat",
+                "oauth_app",
+                "github_app_user_to_server"
               ]
             }
           },
@@ -94283,7 +94285,8 @@
                     "updated_at": {
                       "type": "string",
                       "format": "date-time",
-                      "description": "Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
+                      "deprecated": true,
+                      "description": "**Closing down notice:** This field is no longer relevant and is closing down. Use the `created_at` field to determine when the assignee was last granted access to GitHub Copilot. Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
                     },
                     "plan_type": {
                       "type": "string",
diff --git a/descriptions/api.github.com/dereferenced/api.github.com.deref.yaml b/descriptions/api.github.com/dereferenced/api.github.com.deref.yaml
index 008103f5b..9a366ad7d 100644
--- a/descriptions/api.github.com/dereferenced/api.github.com.deref.yaml
+++ b/descriptions/api.github.com/dereferenced/api.github.com.deref.yaml
@@ -7241,8 +7241,12 @@ paths:
                         updated_at:
                           type: string
                           format: date-time
-                          description: Timestamp of when the assignee's GitHub Copilot
-                            access was last updated, in ISO 8601 format.
+                          deprecated: true
+                          description: "**Closing down notice:** This field is no
+                            longer relevant and is closing down. Use the `created_at`
+                            field to determine when the assignee was last granted
+                            access to GitHub Copilot. Timestamp of when the assignee's
+                            GitHub Copilot access was last updated, in ISO 8601 format."
                         plan_type:
                           type: string
                           description: The Copilot plan of the organization, or the
@@ -24910,11 +24914,11 @@ paths:
         schema:
           type: string
           enum:
-          - installations
-          - classic_pats
-          - fine_grained_pats
-          - oauth_apps
-          - github_apps_user_to_server
+          - installation
+          - classic_pat
+          - fine_grained_pat
+          - oauth_app
+          - github_app_user_to_server
       - &169
         name: actor_id
         in: path
diff --git a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json
index a384df338..650de0485 100644
--- a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json
+++ b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json
@@ -25976,7 +25976,8 @@
                           "updated_at": {
                             "type": "string",
                             "format": "date-time",
-                            "description": "Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
+                            "deprecated": true,
+                            "description": "**Closing down notice:** This field is no longer relevant and is closing down. Use the `created_at` field to determine when the assignee was last granted access to GitHub Copilot. Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
                           },
                           "plan_type": {
                             "type": "string",
@@ -84176,7 +84177,8 @@
                           "updated_at": {
                             "type": "string",
                             "format": "date-time",
-                            "description": "Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
+                            "deprecated": true,
+                            "description": "**Closing down notice:** This field is no longer relevant and is closing down. Use the `created_at` field to determine when the assignee was last granted access to GitHub Copilot. Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
                           },
                           "plan_type": {
                             "type": "string",
@@ -99203,11 +99205,11 @@
             "schema": {
               "type": "string",
               "enum": [
-                "installations",
-                "classic_pats",
-                "fine_grained_pats",
-                "oauth_apps",
-                "github_apps_user_to_server"
+                "installation",
+                "classic_pat",
+                "fine_grained_pat",
+                "oauth_app",
+                "github_app_user_to_server"
               ]
             }
           },
@@ -99754,11 +99756,11 @@
             "schema": {
               "type": "string",
               "enum": [
-                "installations",
-                "classic_pats",
-                "fine_grained_pats",
-                "oauth_apps",
-                "github_apps_user_to_server"
+                "installation",
+                "classic_pat",
+                "fine_grained_pat",
+                "oauth_app",
+                "github_app_user_to_server"
               ]
             }
           },
@@ -100098,11 +100100,11 @@
             "schema": {
               "type": "string",
               "enum": [
-                "installations",
-                "classic_pats",
-                "fine_grained_pats",
-                "oauth_apps",
-                "github_apps_user_to_server"
+                "installation",
+                "classic_pat",
+                "fine_grained_pat",
+                "oauth_app",
+                "github_app_user_to_server"
               ]
             }
           },
@@ -110754,7 +110756,8 @@
                     "updated_at": {
                       "type": "string",
                       "format": "date-time",
-                      "description": "Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
+                      "deprecated": true,
+                      "description": "**Closing down notice:** This field is no longer relevant and is closing down. Use the `created_at` field to determine when the assignee was last granted access to GitHub Copilot. Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
                     },
                     "plan_type": {
                       "type": "string",
diff --git a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml
index e425959a7..817b69c9a 100644
--- a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml
+++ b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml
@@ -11517,8 +11517,12 @@ paths:
                         updated_at:
                           type: string
                           format: date-time
-                          description: Timestamp of when the assignee's GitHub Copilot
-                            access was last updated, in ISO 8601 format.
+                          deprecated: true
+                          description: "**Closing down notice:** This field is no
+                            longer relevant and is closing down. Use the `created_at`
+                            field to determine when the assignee was last granted
+                            access to GitHub Copilot. Timestamp of when the assignee's
+                            GitHub Copilot access was last updated, in ISO 8601 format."
                         plan_type:
                           type: string
                           description: The Copilot plan of the organization, or the
@@ -30206,11 +30210,11 @@ paths:
         schema:
           type: string
           enum:
-          - installations
-          - classic_pats
-          - fine_grained_pats
-          - oauth_apps
-          - github_apps_user_to_server
+          - installation
+          - classic_pat
+          - fine_grained_pat
+          - oauth_app
+          - github_app_user_to_server
       - &231
         name: actor_id
         in: path
diff --git a/descriptions/ghec/dereferenced/ghec.deref.json b/descriptions/ghec/dereferenced/ghec.deref.json
index a384df338..650de0485 100644
--- a/descriptions/ghec/dereferenced/ghec.deref.json
+++ b/descriptions/ghec/dereferenced/ghec.deref.json
@@ -25976,7 +25976,8 @@
                           "updated_at": {
                             "type": "string",
                             "format": "date-time",
-                            "description": "Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
+                            "deprecated": true,
+                            "description": "**Closing down notice:** This field is no longer relevant and is closing down. Use the `created_at` field to determine when the assignee was last granted access to GitHub Copilot. Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
                           },
                           "plan_type": {
                             "type": "string",
@@ -84176,7 +84177,8 @@
                           "updated_at": {
                             "type": "string",
                             "format": "date-time",
-                            "description": "Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
+                            "deprecated": true,
+                            "description": "**Closing down notice:** This field is no longer relevant and is closing down. Use the `created_at` field to determine when the assignee was last granted access to GitHub Copilot. Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
                           },
                           "plan_type": {
                             "type": "string",
@@ -99203,11 +99205,11 @@
             "schema": {
               "type": "string",
               "enum": [
-                "installations",
-                "classic_pats",
-                "fine_grained_pats",
-                "oauth_apps",
-                "github_apps_user_to_server"
+                "installation",
+                "classic_pat",
+                "fine_grained_pat",
+                "oauth_app",
+                "github_app_user_to_server"
               ]
             }
           },
@@ -99754,11 +99756,11 @@
             "schema": {
               "type": "string",
               "enum": [
-                "installations",
-                "classic_pats",
-                "fine_grained_pats",
-                "oauth_apps",
-                "github_apps_user_to_server"
+                "installation",
+                "classic_pat",
+                "fine_grained_pat",
+                "oauth_app",
+                "github_app_user_to_server"
               ]
             }
           },
@@ -100098,11 +100100,11 @@
             "schema": {
               "type": "string",
               "enum": [
-                "installations",
-                "classic_pats",
-                "fine_grained_pats",
-                "oauth_apps",
-                "github_apps_user_to_server"
+                "installation",
+                "classic_pat",
+                "fine_grained_pat",
+                "oauth_app",
+                "github_app_user_to_server"
               ]
             }
           },
@@ -110754,7 +110756,8 @@
                     "updated_at": {
                       "type": "string",
                       "format": "date-time",
-                      "description": "Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
+                      "deprecated": true,
+                      "description": "**Closing down notice:** This field is no longer relevant and is closing down. Use the `created_at` field to determine when the assignee was last granted access to GitHub Copilot. Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
                     },
                     "plan_type": {
                       "type": "string",
diff --git a/descriptions/ghec/dereferenced/ghec.deref.yaml b/descriptions/ghec/dereferenced/ghec.deref.yaml
index e425959a7..817b69c9a 100644
--- a/descriptions/ghec/dereferenced/ghec.deref.yaml
+++ b/descriptions/ghec/dereferenced/ghec.deref.yaml
@@ -11517,8 +11517,12 @@ paths:
                         updated_at:
                           type: string
                           format: date-time
-                          description: Timestamp of when the assignee's GitHub Copilot
-                            access was last updated, in ISO 8601 format.
+                          deprecated: true
+                          description: "**Closing down notice:** This field is no
+                            longer relevant and is closing down. Use the `created_at`
+                            field to determine when the assignee was last granted
+                            access to GitHub Copilot. Timestamp of when the assignee's
+                            GitHub Copilot access was last updated, in ISO 8601 format."
                         plan_type:
                           type: string
                           description: The Copilot plan of the organization, or the
@@ -30206,11 +30210,11 @@ paths:
         schema:
           type: string
           enum:
-          - installations
-          - classic_pats
-          - fine_grained_pats
-          - oauth_apps
-          - github_apps_user_to_server
+          - installation
+          - classic_pat
+          - fine_grained_pat
+          - oauth_app
+          - github_app_user_to_server
       - &231
         name: actor_id
         in: path
diff --git a/descriptions/ghec/ghec.2022-11-28.json b/descriptions/ghec/ghec.2022-11-28.json
index 7c38c5a5f..97abbbf79 100644
--- a/descriptions/ghec/ghec.2022-11-28.json
+++ b/descriptions/ghec/ghec.2022-11-28.json
@@ -105177,7 +105177,8 @@
           "updated_at": {
             "type": "string",
             "format": "date-time",
-            "description": "Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
+            "deprecated": true,
+            "description": "**Closing down notice:** This field is no longer relevant and is closing down. Use the `created_at` field to determine when the assignee was last granted access to GitHub Copilot. Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
           },
           "plan_type": {
             "type": "string",
@@ -307019,11 +307020,11 @@
         "schema": {
           "type": "string",
           "enum": [
-            "installations",
-            "classic_pats",
-            "fine_grained_pats",
-            "oauth_apps",
-            "github_apps_user_to_server"
+            "installation",
+            "classic_pat",
+            "fine_grained_pat",
+            "oauth_app",
+            "github_app_user_to_server"
           ]
         }
       },
diff --git a/descriptions/ghec/ghec.2022-11-28.yaml b/descriptions/ghec/ghec.2022-11-28.yaml
index d5473717c..591a09428 100644
--- a/descriptions/ghec/ghec.2022-11-28.yaml
+++ b/descriptions/ghec/ghec.2022-11-28.yaml
@@ -76499,8 +76499,11 @@ components:
         updated_at:
           type: string
           format: date-time
-          description: Timestamp of when the assignee's GitHub Copilot access was
-            last updated, in ISO 8601 format.
+          deprecated: true
+          description: "**Closing down notice:** This field is no longer relevant
+            and is closing down. Use the `created_at` field to determine when the
+            assignee was last granted access to GitHub Copilot. Timestamp of when
+            the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
         plan_type:
           type: string
           description: The Copilot plan of the organization, or the parent enterprise,
@@ -232890,11 +232893,11 @@ components:
       schema:
         type: string
         enum:
-        - installations
-        - classic_pats
-        - fine_grained_pats
-        - oauth_apps
-        - github_apps_user_to_server
+        - installation
+        - classic_pat
+        - fine_grained_pat
+        - oauth_app
+        - github_app_user_to_server
     api-insights-actor-id:
       name: actor_id
       in: path
diff --git a/descriptions/ghec/ghec.json b/descriptions/ghec/ghec.json
index 7c38c5a5f..97abbbf79 100644
--- a/descriptions/ghec/ghec.json
+++ b/descriptions/ghec/ghec.json
@@ -105177,7 +105177,8 @@
           "updated_at": {
             "type": "string",
             "format": "date-time",
-            "description": "Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
+            "deprecated": true,
+            "description": "**Closing down notice:** This field is no longer relevant and is closing down. Use the `created_at` field to determine when the assignee was last granted access to GitHub Copilot. Timestamp of when the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
           },
           "plan_type": {
             "type": "string",
@@ -307019,11 +307020,11 @@
         "schema": {
           "type": "string",
           "enum": [
-            "installations",
-            "classic_pats",
-            "fine_grained_pats",
-            "oauth_apps",
-            "github_apps_user_to_server"
+            "installation",
+            "classic_pat",
+            "fine_grained_pat",
+            "oauth_app",
+            "github_app_user_to_server"
           ]
         }
       },
diff --git a/descriptions/ghec/ghec.yaml b/descriptions/ghec/ghec.yaml
index d5473717c..591a09428 100644
--- a/descriptions/ghec/ghec.yaml
+++ b/descriptions/ghec/ghec.yaml
@@ -76499,8 +76499,11 @@ components:
         updated_at:
           type: string
           format: date-time
-          description: Timestamp of when the assignee's GitHub Copilot access was
-            last updated, in ISO 8601 format.
+          deprecated: true
+          description: "**Closing down notice:** This field is no longer relevant
+            and is closing down. Use the `created_at` field to determine when the
+            assignee was last granted access to GitHub Copilot. Timestamp of when
+            the assignee's GitHub Copilot access was last updated, in ISO 8601 format."
         plan_type:
           type: string
           description: The Copilot plan of the organization, or the parent enterprise,
@@ -232890,11 +232893,11 @@ components:
       schema:
         type: string
         enum:
-        - installations
-        - classic_pats
-        - fine_grained_pats
-        - oauth_apps
-        - github_apps_user_to_server
+        - installation
+        - classic_pat
+        - fine_grained_pat
+        - oauth_app
+        - github_app_user_to_server
     api-insights-actor-id:
       name: actor_id
       in: path