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 793ff13e3..e5d809b6a 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
@@ -108575,6 +108575,12 @@
             "nullable": true,
             "description": "Last editor that was used by the user for a GitHub Copilot completion."
           },
+          "last_authenticated_at": {
+            "type": "string",
+            "format": "date-time",
+            "nullable": true,
+            "description": "Timestamp of the last time the user authenticated with GitHub Copilot, in ISO 8601 format."
+          },
           "created_at": {
             "type": "string",
             "format": "date-time",
@@ -279555,6 +279561,7 @@
               "pending_cancellation_date": null,
               "last_activity_at": "2021-10-14T00:53:32-06:00",
               "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+              "last_authenticated_at": "2021-10-14T00:53:32-06:00",
               "plan_type": "business",
               "assignee": {
                 "login": "octocat",
@@ -279598,6 +279605,7 @@
               "pending_cancellation_date": "2021-11-01",
               "last_activity_at": "2021-10-13T00:53:32-06:00",
               "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+              "last_authenticated_at": "2021-10-14T00:53:32-06:00",
               "assignee": {
                 "login": "octokitten",
                 "id": 1,
@@ -280486,6 +280494,7 @@
           "pending_cancellation_date": null,
           "last_activity_at": "2021-10-14T00:53:32-06:00",
           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
           "plan_type": "business",
           "assignee": {
             "login": "octocat",
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 ad8ecbc60..fd73ad272 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
@@ -79422,6 +79422,12 @@ components:
           nullable: true
           description: Last editor that was used by the user for a GitHub Copilot
             completion.
+        last_authenticated_at:
+          type: string
+          format: date-time
+          nullable: true
+          description: Timestamp of the last time the user authenticated with GitHub
+            Copilot, in ISO 8601 format.
         created_at:
           type: string
           format: date-time
@@ -209861,6 +209867,7 @@ components:
           pending_cancellation_date: 
           last_activity_at: '2021-10-14T00:53:32-06:00'
           last_activity_editor: vscode/1.77.3/copilot/1.86.82
+          last_authenticated_at: '2021-10-14T00:53:32-06:00'
           plan_type: business
           assignee:
             login: octocat
@@ -209900,6 +209907,7 @@ components:
           pending_cancellation_date: '2021-11-01'
           last_activity_at: '2021-10-13T00:53:32-06:00'
           last_activity_editor: vscode/1.77.3/copilot/1.86.82
+          last_authenticated_at: '2021-10-14T00:53:32-06:00'
           assignee:
             login: octokitten
             id: 1
@@ -210603,6 +210611,7 @@ components:
         pending_cancellation_date: 
         last_activity_at: '2021-10-14T00:53:32-06:00'
         last_activity_editor: vscode/1.77.3/copilot/1.86.82
+        last_authenticated_at: '2021-10-14T00:53:32-06:00'
         plan_type: business
         assignee:
           login: octocat
diff --git a/descriptions/api.github.com/api.github.com.json b/descriptions/api.github.com/api.github.com.json
index 793ff13e3..e5d809b6a 100644
--- a/descriptions/api.github.com/api.github.com.json
+++ b/descriptions/api.github.com/api.github.com.json
@@ -108575,6 +108575,12 @@
             "nullable": true,
             "description": "Last editor that was used by the user for a GitHub Copilot completion."
           },
+          "last_authenticated_at": {
+            "type": "string",
+            "format": "date-time",
+            "nullable": true,
+            "description": "Timestamp of the last time the user authenticated with GitHub Copilot, in ISO 8601 format."
+          },
           "created_at": {
             "type": "string",
             "format": "date-time",
@@ -279555,6 +279561,7 @@
               "pending_cancellation_date": null,
               "last_activity_at": "2021-10-14T00:53:32-06:00",
               "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+              "last_authenticated_at": "2021-10-14T00:53:32-06:00",
               "plan_type": "business",
               "assignee": {
                 "login": "octocat",
@@ -279598,6 +279605,7 @@
               "pending_cancellation_date": "2021-11-01",
               "last_activity_at": "2021-10-13T00:53:32-06:00",
               "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+              "last_authenticated_at": "2021-10-14T00:53:32-06:00",
               "assignee": {
                 "login": "octokitten",
                 "id": 1,
@@ -280486,6 +280494,7 @@
           "pending_cancellation_date": null,
           "last_activity_at": "2021-10-14T00:53:32-06:00",
           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
           "plan_type": "business",
           "assignee": {
             "login": "octocat",
diff --git a/descriptions/api.github.com/api.github.com.yaml b/descriptions/api.github.com/api.github.com.yaml
index ad8ecbc60..fd73ad272 100644
--- a/descriptions/api.github.com/api.github.com.yaml
+++ b/descriptions/api.github.com/api.github.com.yaml
@@ -79422,6 +79422,12 @@ components:
           nullable: true
           description: Last editor that was used by the user for a GitHub Copilot
             completion.
+        last_authenticated_at:
+          type: string
+          format: date-time
+          nullable: true
+          description: Timestamp of the last time the user authenticated with GitHub
+            Copilot, in ISO 8601 format.
         created_at:
           type: string
           format: date-time
@@ -209861,6 +209867,7 @@ components:
           pending_cancellation_date: 
           last_activity_at: '2021-10-14T00:53:32-06:00'
           last_activity_editor: vscode/1.77.3/copilot/1.86.82
+          last_authenticated_at: '2021-10-14T00:53:32-06:00'
           plan_type: business
           assignee:
             login: octocat
@@ -209900,6 +209907,7 @@ components:
           pending_cancellation_date: '2021-11-01'
           last_activity_at: '2021-10-13T00:53:32-06:00'
           last_activity_editor: vscode/1.77.3/copilot/1.86.82
+          last_authenticated_at: '2021-10-14T00:53:32-06:00'
           assignee:
             login: octokitten
             id: 1
@@ -210603,6 +210611,7 @@ components:
         pending_cancellation_date: 
         last_activity_at: '2021-10-14T00:53:32-06:00'
         last_activity_editor: vscode/1.77.3/copilot/1.86.82
+        last_authenticated_at: '2021-10-14T00:53:32-06:00'
         plan_type: business
         assignee:
           login: octocat
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 d82485b91..4dbf09815 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
@@ -83591,6 +83591,12 @@
                             "nullable": true,
                             "description": "Last editor that was used by the user for a GitHub Copilot completion."
                           },
+                          "last_authenticated_at": {
+                            "type": "string",
+                            "format": "date-time",
+                            "nullable": true,
+                            "description": "Timestamp of the last time the user authenticated with GitHub Copilot, in ISO 8601 format."
+                          },
                           "created_at": {
                             "type": "string",
                             "format": "date-time",
@@ -83631,6 +83637,7 @@
                           "pending_cancellation_date": null,
                           "last_activity_at": "2021-10-14T00:53:32-06:00",
                           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                           "plan_type": "business",
                           "assignee": {
                             "login": "octocat",
@@ -83674,6 +83681,7 @@
                           "pending_cancellation_date": "2021-11-01",
                           "last_activity_at": "2021-10-13T00:53:32-06:00",
                           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                           "assignee": {
                             "login": "octokitten",
                             "id": 1,
@@ -107744,6 +107752,12 @@
                       "nullable": true,
                       "description": "Last editor that was used by the user for a GitHub Copilot completion."
                     },
+                    "last_authenticated_at": {
+                      "type": "string",
+                      "format": "date-time",
+                      "nullable": true,
+                      "description": "Timestamp of the last time the user authenticated with GitHub Copilot, in ISO 8601 format."
+                    },
                     "created_at": {
                       "type": "string",
                       "format": "date-time",
@@ -107778,6 +107792,7 @@
                       "pending_cancellation_date": null,
                       "last_activity_at": "2021-10-14T00:53:32-06:00",
                       "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                      "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                       "plan_type": "business",
                       "assignee": {
                         "login": "octocat",
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 7797a6786..6fca3185d 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
@@ -25906,6 +25906,12 @@ paths:
                           nullable: true
                           description: Last editor that was used by the user for a
                             GitHub Copilot completion.
+                        last_authenticated_at:
+                          type: string
+                          format: date-time
+                          nullable: true
+                          description: Timestamp of the last time the user authenticated
+                            with GitHub Copilot, in ISO 8601 format.
                         created_at:
                           type: string
                           format: date-time
@@ -25941,6 +25947,7 @@ paths:
                       pending_cancellation_date: 
                       last_activity_at: '2021-10-14T00:53:32-06:00'
                       last_activity_editor: vscode/1.77.3/copilot/1.86.82
+                      last_authenticated_at: '2021-10-14T00:53:32-06:00'
                       plan_type: business
                       assignee:
                         login: octocat
@@ -25980,6 +25987,7 @@ paths:
                       pending_cancellation_date: '2021-11-01'
                       last_activity_at: '2021-10-13T00:53:32-06:00'
                       last_activity_editor: vscode/1.77.3/copilot/1.86.82
+                      last_authenticated_at: '2021-10-14T00:53:32-06:00'
                       assignee:
                         login: octokitten
                         id: 1
@@ -30040,6 +30048,7 @@ paths:
                     pending_cancellation_date: 
                     last_activity_at: '2021-10-14T00:53:32-06:00'
                     last_activity_editor: vscode/1.77.3/copilot/1.86.82
+                    last_authenticated_at: '2021-10-14T00:53:32-06:00'
                     plan_type: business
                     assignee:
                       login: octocat
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 d82485b91..4dbf09815 100644
--- a/descriptions/api.github.com/dereferenced/api.github.com.deref.json
+++ b/descriptions/api.github.com/dereferenced/api.github.com.deref.json
@@ -83591,6 +83591,12 @@
                             "nullable": true,
                             "description": "Last editor that was used by the user for a GitHub Copilot completion."
                           },
+                          "last_authenticated_at": {
+                            "type": "string",
+                            "format": "date-time",
+                            "nullable": true,
+                            "description": "Timestamp of the last time the user authenticated with GitHub Copilot, in ISO 8601 format."
+                          },
                           "created_at": {
                             "type": "string",
                             "format": "date-time",
@@ -83631,6 +83637,7 @@
                           "pending_cancellation_date": null,
                           "last_activity_at": "2021-10-14T00:53:32-06:00",
                           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                           "plan_type": "business",
                           "assignee": {
                             "login": "octocat",
@@ -83674,6 +83681,7 @@
                           "pending_cancellation_date": "2021-11-01",
                           "last_activity_at": "2021-10-13T00:53:32-06:00",
                           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                           "assignee": {
                             "login": "octokitten",
                             "id": 1,
@@ -107744,6 +107752,12 @@
                       "nullable": true,
                       "description": "Last editor that was used by the user for a GitHub Copilot completion."
                     },
+                    "last_authenticated_at": {
+                      "type": "string",
+                      "format": "date-time",
+                      "nullable": true,
+                      "description": "Timestamp of the last time the user authenticated with GitHub Copilot, in ISO 8601 format."
+                    },
                     "created_at": {
                       "type": "string",
                       "format": "date-time",
@@ -107778,6 +107792,7 @@
                       "pending_cancellation_date": null,
                       "last_activity_at": "2021-10-14T00:53:32-06:00",
                       "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                      "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                       "plan_type": "business",
                       "assignee": {
                         "login": "octocat",
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 7797a6786..6fca3185d 100644
--- a/descriptions/api.github.com/dereferenced/api.github.com.deref.yaml
+++ b/descriptions/api.github.com/dereferenced/api.github.com.deref.yaml
@@ -25906,6 +25906,12 @@ paths:
                           nullable: true
                           description: Last editor that was used by the user for a
                             GitHub Copilot completion.
+                        last_authenticated_at:
+                          type: string
+                          format: date-time
+                          nullable: true
+                          description: Timestamp of the last time the user authenticated
+                            with GitHub Copilot, in ISO 8601 format.
                         created_at:
                           type: string
                           format: date-time
@@ -25941,6 +25947,7 @@ paths:
                       pending_cancellation_date: 
                       last_activity_at: '2021-10-14T00:53:32-06:00'
                       last_activity_editor: vscode/1.77.3/copilot/1.86.82
+                      last_authenticated_at: '2021-10-14T00:53:32-06:00'
                       plan_type: business
                       assignee:
                         login: octocat
@@ -25980,6 +25987,7 @@ paths:
                       pending_cancellation_date: '2021-11-01'
                       last_activity_at: '2021-10-13T00:53:32-06:00'
                       last_activity_editor: vscode/1.77.3/copilot/1.86.82
+                      last_authenticated_at: '2021-10-14T00:53:32-06:00'
                       assignee:
                         login: octokitten
                         id: 1
@@ -30040,6 +30048,7 @@ paths:
                     pending_cancellation_date: 
                     last_activity_at: '2021-10-14T00:53:32-06:00'
                     last_activity_editor: vscode/1.77.3/copilot/1.86.82
+                    last_authenticated_at: '2021-10-14T00:53:32-06:00'
                     plan_type: business
                     assignee:
                       login: octocat
diff --git a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json
index ef7b78401..05004f88d 100644
--- a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json
+++ b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json
@@ -38215,6 +38215,12 @@
                             "nullable": true,
                             "description": "Last editor that was used by the user for a GitHub Copilot completion."
                           },
+                          "last_authenticated_at": {
+                            "type": "string",
+                            "format": "date-time",
+                            "nullable": true,
+                            "description": "Timestamp of the last time the user authenticated with GitHub Copilot, in ISO 8601 format."
+                          },
                           "created_at": {
                             "type": "string",
                             "format": "date-time",
@@ -38255,6 +38261,7 @@
                           "pending_cancellation_date": null,
                           "last_activity_at": "2021-10-14T00:53:32-06:00",
                           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                           "plan_type": "business",
                           "assignee": {
                             "login": "octocat",
@@ -38298,6 +38305,7 @@
                           "pending_cancellation_date": "2021-11-01",
                           "last_activity_at": "2021-10-13T00:53:32-06:00",
                           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                           "assignee": {
                             "login": "octokitten",
                             "id": 1,
@@ -41472,6 +41480,12 @@
                             "nullable": true,
                             "description": "Last editor that was used by the user for a GitHub Copilot completion."
                           },
+                          "last_authenticated_at": {
+                            "type": "string",
+                            "format": "date-time",
+                            "nullable": true,
+                            "description": "Timestamp of the last time the user authenticated with GitHub Copilot, in ISO 8601 format."
+                          },
                           "created_at": {
                             "type": "string",
                             "format": "date-time",
@@ -41512,6 +41526,7 @@
                           "pending_cancellation_date": null,
                           "last_activity_at": "2021-10-14T00:53:32-06:00",
                           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                           "plan_type": "business",
                           "assignee": {
                             "login": "octocat",
@@ -41555,6 +41570,7 @@
                           "pending_cancellation_date": "2021-11-01",
                           "last_activity_at": "2021-10-13T00:53:32-06:00",
                           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                           "assignee": {
                             "login": "octokitten",
                             "id": 1,
@@ -53763,6 +53779,11 @@
                               "deleted"
                             ]
                           },
+                          "azure_subscription": {
+                            "type": "string",
+                            "nullable": true,
+                            "description": "Azure subscription ID associated with the cost center. Only present for cost centers linked to Azure subscriptions."
+                          },
                           "resources": {
                             "type": "array",
                             "items": {
@@ -53801,6 +53822,7 @@
                           "id": "2eeb8ffe-6903-11ee-8c99-0242ac120002",
                           "name": "Cost Center Name",
                           "state": "active",
+                          "azure_subscription": "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee",
                           "resources": [
                             {
                               "type": "User",
@@ -53811,6 +53833,17 @@
                               "name": "octocat/hello-world"
                             }
                           ]
+                        },
+                        {
+                          "id": "3ffb9ffe-6903-11ee-8c99-0242ac120003",
+                          "name": "Another Cost Center",
+                          "state": "active",
+                          "resources": [
+                            {
+                              "type": "User",
+                              "name": "Octocat"
+                            }
+                          ]
                         }
                       ]
                     }
@@ -54025,6 +54058,19 @@
                       "type": "string",
                       "description": "Name of the cost center"
                     },
+                    "azure_subscription": {
+                      "type": "string",
+                      "nullable": true,
+                      "description": "Azure subscription ID associated with the cost center. Only present for cost centers linked to Azure subscriptions."
+                    },
+                    "state": {
+                      "type": "string",
+                      "description": "State of the cost center.",
+                      "enum": [
+                        "active",
+                        "deleted"
+                      ]
+                    },
                     "resources": {
                       "type": "array",
                       "description": "List of resources assigned to this cost center",
@@ -54165,6 +54211,19 @@
                       "type": "string",
                       "description": "Name of the cost center."
                     },
+                    "azure_subscription": {
+                      "type": "string",
+                      "nullable": true,
+                      "description": "Azure subscription ID associated with the cost center. Only present for cost centers linked to Azure subscriptions."
+                    },
+                    "state": {
+                      "type": "string",
+                      "description": "State of the cost center.",
+                      "enum": [
+                        "active",
+                        "deleted"
+                      ]
+                    },
                     "resources": {
                       "type": "array",
                       "items": {
@@ -54194,22 +54253,22 @@
                 },
                 "examples": {
                   "default": {
-                    "value": [
-                      {
-                        "id": "2eeb8ffe-6903-11ee-8c99-0242ac120002",
-                        "name": "Cost Center Name",
-                        "resources": [
-                          {
-                            "type": "User",
-                            "name": "Monalisa"
-                          },
-                          {
-                            "type": "Repo",
-                            "name": "octocat/hello-world"
-                          }
-                        ]
-                      }
-                    ]
+                    "value": {
+                      "id": "2eeb8ffe-6903-11ee-8c99-0242ac120002",
+                      "name": "Cost Center Name",
+                      "state": "active",
+                      "azure_subscription": "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee",
+                      "resources": [
+                        {
+                          "type": "User",
+                          "name": "Monalisa"
+                        },
+                        {
+                          "type": "Repo",
+                          "name": "octocat/hello-world"
+                        }
+                      ]
+                    }
                   }
                 }
               }
@@ -54430,6 +54489,19 @@
                       "type": "string",
                       "description": "Name of the cost center."
                     },
+                    "azure_subscription": {
+                      "type": "string",
+                      "nullable": true,
+                      "description": "Azure subscription ID associated with the cost center. Only present for cost centers linked to Azure subscriptions."
+                    },
+                    "state": {
+                      "type": "string",
+                      "description": "State of the cost center.",
+                      "enum": [
+                        "active",
+                        "deleted"
+                      ]
+                    },
                     "resources": {
                       "type": "array",
                       "items": {
@@ -54459,22 +54531,22 @@
                 },
                 "examples": {
                   "default": {
-                    "value": [
-                      {
-                        "id": "2eeb8ffe-6903-11ee-8c99-0242ac120002",
-                        "name": "Cost Center Name",
-                        "resources": [
-                          {
-                            "type": "User",
-                            "name": "Monalisa"
-                          },
-                          {
-                            "type": "Repo",
-                            "name": "octocat/hello-world"
-                          }
-                        ]
-                      }
-                    ]
+                    "value": {
+                      "id": "2eeb8ffe-6903-11ee-8c99-0242ac120002",
+                      "name": "Cost Center Name",
+                      "state": "active",
+                      "azure_subscription": "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee",
+                      "resources": [
+                        {
+                          "type": "User",
+                          "name": "Monalisa"
+                        },
+                        {
+                          "type": "Repo",
+                          "name": "octocat/hello-world"
+                        }
+                      ]
+                    }
                   }
                 }
               }
@@ -118228,6 +118300,12 @@
                             "nullable": true,
                             "description": "Last editor that was used by the user for a GitHub Copilot completion."
                           },
+                          "last_authenticated_at": {
+                            "type": "string",
+                            "format": "date-time",
+                            "nullable": true,
+                            "description": "Timestamp of the last time the user authenticated with GitHub Copilot, in ISO 8601 format."
+                          },
                           "created_at": {
                             "type": "string",
                             "format": "date-time",
@@ -118268,6 +118346,7 @@
                           "pending_cancellation_date": null,
                           "last_activity_at": "2021-10-14T00:53:32-06:00",
                           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                           "plan_type": "business",
                           "assignee": {
                             "login": "octocat",
@@ -118311,6 +118390,7 @@
                           "pending_cancellation_date": "2021-11-01",
                           "last_activity_at": "2021-10-13T00:53:32-06:00",
                           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                           "assignee": {
                             "login": "octokitten",
                             "id": 1,
@@ -146688,6 +146768,12 @@
                       "nullable": true,
                       "description": "Last editor that was used by the user for a GitHub Copilot completion."
                     },
+                    "last_authenticated_at": {
+                      "type": "string",
+                      "format": "date-time",
+                      "nullable": true,
+                      "description": "Timestamp of the last time the user authenticated with GitHub Copilot, in ISO 8601 format."
+                    },
                     "created_at": {
                       "type": "string",
                       "format": "date-time",
@@ -146722,6 +146808,7 @@
                       "pending_cancellation_date": null,
                       "last_activity_at": "2021-10-14T00:53:32-06:00",
                       "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                      "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                       "plan_type": "business",
                       "assignee": {
                         "login": "octocat",
diff --git a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml
index 831bd9057..536c9688f 100644
--- a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml
+++ b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml
@@ -14835,6 +14835,12 @@ paths:
                           nullable: true
                           description: Last editor that was used by the user for a
                             GitHub Copilot completion.
+                        last_authenticated_at:
+                          type: string
+                          format: date-time
+                          nullable: true
+                          description: Timestamp of the last time the user authenticated
+                            with GitHub Copilot, in ISO 8601 format.
                         created_at:
                           type: string
                           format: date-time
@@ -14870,6 +14876,7 @@ paths:
                       pending_cancellation_date: 
                       last_activity_at: '2021-10-14T00:53:32-06:00'
                       last_activity_editor: vscode/1.77.3/copilot/1.86.82
+                      last_authenticated_at: '2021-10-14T00:53:32-06:00'
                       plan_type: business
                       assignee:
                         login: octocat
@@ -14909,6 +14916,7 @@ paths:
                       pending_cancellation_date: '2021-11-01'
                       last_activity_at: '2021-10-13T00:53:32-06:00'
                       last_activity_editor: vscode/1.77.3/copilot/1.86.82
+                      last_authenticated_at: '2021-10-14T00:53:32-06:00'
                       assignee:
                         login: octokitten
                         id: 1
@@ -19751,6 +19759,12 @@ paths:
                           enum:
                           - active
                           - deleted
+                        azure_subscription:
+                          type: string
+                          nullable: true
+                          description: Azure subscription ID associated with the cost
+                            center. Only present for cost centers linked to Azure
+                            subscriptions.
                         resources:
                           type: array
                           items:
@@ -19776,11 +19790,18 @@ paths:
                     - id: 2eeb8ffe-6903-11ee-8c99-0242ac120002
                       name: Cost Center Name
                       state: active
+                      azure_subscription: aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee
                       resources:
                       - type: User
                         name: Monalisa
                       - type: Repo
                         name: octocat/hello-world
+                    - id: 3ffb9ffe-6903-11ee-8c99-0242ac120003
+                      name: Another Cost Center
+                      state: active
+                      resources:
+                      - type: User
+                        name: Octocat
         '400': *14
         '403': *29
         '500': *90
@@ -19833,6 +19854,17 @@ paths:
                   name:
                     type: string
                     description: Name of the cost center
+                  azure_subscription:
+                    type: string
+                    nullable: true
+                    description: Azure subscription ID associated with the cost center.
+                      Only present for cost centers linked to Azure subscriptions.
+                  state:
+                    type: string
+                    description: State of the cost center.
+                    enum:
+                    - active
+                    - deleted
                   resources:
                     type: array
                     description: List of resources assigned to this cost center
@@ -19923,6 +19955,17 @@ paths:
                   name:
                     type: string
                     description: Name of the cost center.
+                  azure_subscription:
+                    type: string
+                    nullable: true
+                    description: Azure subscription ID associated with the cost center.
+                      Only present for cost centers linked to Azure subscriptions.
+                  state:
+                    type: string
+                    description: State of the cost center.
+                    enum:
+                    - active
+                    - deleted
                   resources:
                     type: array
                     items:
@@ -19944,8 +19987,10 @@ paths:
               examples:
                 default: &163
                   value:
-                  - id: 2eeb8ffe-6903-11ee-8c99-0242ac120002
+                    id: 2eeb8ffe-6903-11ee-8c99-0242ac120002
                     name: Cost Center Name
+                    state: active
+                    azure_subscription: aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee
                     resources:
                     - type: User
                       name: Monalisa
@@ -40436,6 +40481,7 @@ paths:
                     pending_cancellation_date: 
                     last_activity_at: '2021-10-14T00:53:32-06:00'
                     last_activity_editor: vscode/1.77.3/copilot/1.86.82
+                    last_authenticated_at: '2021-10-14T00:53:32-06:00'
                     plan_type: business
                     assignee:
                       login: octocat
diff --git a/descriptions/ghec/dereferenced/ghec.deref.json b/descriptions/ghec/dereferenced/ghec.deref.json
index ef7b78401..05004f88d 100644
--- a/descriptions/ghec/dereferenced/ghec.deref.json
+++ b/descriptions/ghec/dereferenced/ghec.deref.json
@@ -38215,6 +38215,12 @@
                             "nullable": true,
                             "description": "Last editor that was used by the user for a GitHub Copilot completion."
                           },
+                          "last_authenticated_at": {
+                            "type": "string",
+                            "format": "date-time",
+                            "nullable": true,
+                            "description": "Timestamp of the last time the user authenticated with GitHub Copilot, in ISO 8601 format."
+                          },
                           "created_at": {
                             "type": "string",
                             "format": "date-time",
@@ -38255,6 +38261,7 @@
                           "pending_cancellation_date": null,
                           "last_activity_at": "2021-10-14T00:53:32-06:00",
                           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                           "plan_type": "business",
                           "assignee": {
                             "login": "octocat",
@@ -38298,6 +38305,7 @@
                           "pending_cancellation_date": "2021-11-01",
                           "last_activity_at": "2021-10-13T00:53:32-06:00",
                           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                           "assignee": {
                             "login": "octokitten",
                             "id": 1,
@@ -41472,6 +41480,12 @@
                             "nullable": true,
                             "description": "Last editor that was used by the user for a GitHub Copilot completion."
                           },
+                          "last_authenticated_at": {
+                            "type": "string",
+                            "format": "date-time",
+                            "nullable": true,
+                            "description": "Timestamp of the last time the user authenticated with GitHub Copilot, in ISO 8601 format."
+                          },
                           "created_at": {
                             "type": "string",
                             "format": "date-time",
@@ -41512,6 +41526,7 @@
                           "pending_cancellation_date": null,
                           "last_activity_at": "2021-10-14T00:53:32-06:00",
                           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                           "plan_type": "business",
                           "assignee": {
                             "login": "octocat",
@@ -41555,6 +41570,7 @@
                           "pending_cancellation_date": "2021-11-01",
                           "last_activity_at": "2021-10-13T00:53:32-06:00",
                           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                           "assignee": {
                             "login": "octokitten",
                             "id": 1,
@@ -53763,6 +53779,11 @@
                               "deleted"
                             ]
                           },
+                          "azure_subscription": {
+                            "type": "string",
+                            "nullable": true,
+                            "description": "Azure subscription ID associated with the cost center. Only present for cost centers linked to Azure subscriptions."
+                          },
                           "resources": {
                             "type": "array",
                             "items": {
@@ -53801,6 +53822,7 @@
                           "id": "2eeb8ffe-6903-11ee-8c99-0242ac120002",
                           "name": "Cost Center Name",
                           "state": "active",
+                          "azure_subscription": "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee",
                           "resources": [
                             {
                               "type": "User",
@@ -53811,6 +53833,17 @@
                               "name": "octocat/hello-world"
                             }
                           ]
+                        },
+                        {
+                          "id": "3ffb9ffe-6903-11ee-8c99-0242ac120003",
+                          "name": "Another Cost Center",
+                          "state": "active",
+                          "resources": [
+                            {
+                              "type": "User",
+                              "name": "Octocat"
+                            }
+                          ]
                         }
                       ]
                     }
@@ -54025,6 +54058,19 @@
                       "type": "string",
                       "description": "Name of the cost center"
                     },
+                    "azure_subscription": {
+                      "type": "string",
+                      "nullable": true,
+                      "description": "Azure subscription ID associated with the cost center. Only present for cost centers linked to Azure subscriptions."
+                    },
+                    "state": {
+                      "type": "string",
+                      "description": "State of the cost center.",
+                      "enum": [
+                        "active",
+                        "deleted"
+                      ]
+                    },
                     "resources": {
                       "type": "array",
                       "description": "List of resources assigned to this cost center",
@@ -54165,6 +54211,19 @@
                       "type": "string",
                       "description": "Name of the cost center."
                     },
+                    "azure_subscription": {
+                      "type": "string",
+                      "nullable": true,
+                      "description": "Azure subscription ID associated with the cost center. Only present for cost centers linked to Azure subscriptions."
+                    },
+                    "state": {
+                      "type": "string",
+                      "description": "State of the cost center.",
+                      "enum": [
+                        "active",
+                        "deleted"
+                      ]
+                    },
                     "resources": {
                       "type": "array",
                       "items": {
@@ -54194,22 +54253,22 @@
                 },
                 "examples": {
                   "default": {
-                    "value": [
-                      {
-                        "id": "2eeb8ffe-6903-11ee-8c99-0242ac120002",
-                        "name": "Cost Center Name",
-                        "resources": [
-                          {
-                            "type": "User",
-                            "name": "Monalisa"
-                          },
-                          {
-                            "type": "Repo",
-                            "name": "octocat/hello-world"
-                          }
-                        ]
-                      }
-                    ]
+                    "value": {
+                      "id": "2eeb8ffe-6903-11ee-8c99-0242ac120002",
+                      "name": "Cost Center Name",
+                      "state": "active",
+                      "azure_subscription": "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee",
+                      "resources": [
+                        {
+                          "type": "User",
+                          "name": "Monalisa"
+                        },
+                        {
+                          "type": "Repo",
+                          "name": "octocat/hello-world"
+                        }
+                      ]
+                    }
                   }
                 }
               }
@@ -54430,6 +54489,19 @@
                       "type": "string",
                       "description": "Name of the cost center."
                     },
+                    "azure_subscription": {
+                      "type": "string",
+                      "nullable": true,
+                      "description": "Azure subscription ID associated with the cost center. Only present for cost centers linked to Azure subscriptions."
+                    },
+                    "state": {
+                      "type": "string",
+                      "description": "State of the cost center.",
+                      "enum": [
+                        "active",
+                        "deleted"
+                      ]
+                    },
                     "resources": {
                       "type": "array",
                       "items": {
@@ -54459,22 +54531,22 @@
                 },
                 "examples": {
                   "default": {
-                    "value": [
-                      {
-                        "id": "2eeb8ffe-6903-11ee-8c99-0242ac120002",
-                        "name": "Cost Center Name",
-                        "resources": [
-                          {
-                            "type": "User",
-                            "name": "Monalisa"
-                          },
-                          {
-                            "type": "Repo",
-                            "name": "octocat/hello-world"
-                          }
-                        ]
-                      }
-                    ]
+                    "value": {
+                      "id": "2eeb8ffe-6903-11ee-8c99-0242ac120002",
+                      "name": "Cost Center Name",
+                      "state": "active",
+                      "azure_subscription": "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee",
+                      "resources": [
+                        {
+                          "type": "User",
+                          "name": "Monalisa"
+                        },
+                        {
+                          "type": "Repo",
+                          "name": "octocat/hello-world"
+                        }
+                      ]
+                    }
                   }
                 }
               }
@@ -118228,6 +118300,12 @@
                             "nullable": true,
                             "description": "Last editor that was used by the user for a GitHub Copilot completion."
                           },
+                          "last_authenticated_at": {
+                            "type": "string",
+                            "format": "date-time",
+                            "nullable": true,
+                            "description": "Timestamp of the last time the user authenticated with GitHub Copilot, in ISO 8601 format."
+                          },
                           "created_at": {
                             "type": "string",
                             "format": "date-time",
@@ -118268,6 +118346,7 @@
                           "pending_cancellation_date": null,
                           "last_activity_at": "2021-10-14T00:53:32-06:00",
                           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                           "plan_type": "business",
                           "assignee": {
                             "login": "octocat",
@@ -118311,6 +118390,7 @@
                           "pending_cancellation_date": "2021-11-01",
                           "last_activity_at": "2021-10-13T00:53:32-06:00",
                           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                           "assignee": {
                             "login": "octokitten",
                             "id": 1,
@@ -146688,6 +146768,12 @@
                       "nullable": true,
                       "description": "Last editor that was used by the user for a GitHub Copilot completion."
                     },
+                    "last_authenticated_at": {
+                      "type": "string",
+                      "format": "date-time",
+                      "nullable": true,
+                      "description": "Timestamp of the last time the user authenticated with GitHub Copilot, in ISO 8601 format."
+                    },
                     "created_at": {
                       "type": "string",
                       "format": "date-time",
@@ -146722,6 +146808,7 @@
                       "pending_cancellation_date": null,
                       "last_activity_at": "2021-10-14T00:53:32-06:00",
                       "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+                      "last_authenticated_at": "2021-10-14T00:53:32-06:00",
                       "plan_type": "business",
                       "assignee": {
                         "login": "octocat",
diff --git a/descriptions/ghec/dereferenced/ghec.deref.yaml b/descriptions/ghec/dereferenced/ghec.deref.yaml
index 831bd9057..536c9688f 100644
--- a/descriptions/ghec/dereferenced/ghec.deref.yaml
+++ b/descriptions/ghec/dereferenced/ghec.deref.yaml
@@ -14835,6 +14835,12 @@ paths:
                           nullable: true
                           description: Last editor that was used by the user for a
                             GitHub Copilot completion.
+                        last_authenticated_at:
+                          type: string
+                          format: date-time
+                          nullable: true
+                          description: Timestamp of the last time the user authenticated
+                            with GitHub Copilot, in ISO 8601 format.
                         created_at:
                           type: string
                           format: date-time
@@ -14870,6 +14876,7 @@ paths:
                       pending_cancellation_date: 
                       last_activity_at: '2021-10-14T00:53:32-06:00'
                       last_activity_editor: vscode/1.77.3/copilot/1.86.82
+                      last_authenticated_at: '2021-10-14T00:53:32-06:00'
                       plan_type: business
                       assignee:
                         login: octocat
@@ -14909,6 +14916,7 @@ paths:
                       pending_cancellation_date: '2021-11-01'
                       last_activity_at: '2021-10-13T00:53:32-06:00'
                       last_activity_editor: vscode/1.77.3/copilot/1.86.82
+                      last_authenticated_at: '2021-10-14T00:53:32-06:00'
                       assignee:
                         login: octokitten
                         id: 1
@@ -19751,6 +19759,12 @@ paths:
                           enum:
                           - active
                           - deleted
+                        azure_subscription:
+                          type: string
+                          nullable: true
+                          description: Azure subscription ID associated with the cost
+                            center. Only present for cost centers linked to Azure
+                            subscriptions.
                         resources:
                           type: array
                           items:
@@ -19776,11 +19790,18 @@ paths:
                     - id: 2eeb8ffe-6903-11ee-8c99-0242ac120002
                       name: Cost Center Name
                       state: active
+                      azure_subscription: aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee
                       resources:
                       - type: User
                         name: Monalisa
                       - type: Repo
                         name: octocat/hello-world
+                    - id: 3ffb9ffe-6903-11ee-8c99-0242ac120003
+                      name: Another Cost Center
+                      state: active
+                      resources:
+                      - type: User
+                        name: Octocat
         '400': *14
         '403': *29
         '500': *90
@@ -19833,6 +19854,17 @@ paths:
                   name:
                     type: string
                     description: Name of the cost center
+                  azure_subscription:
+                    type: string
+                    nullable: true
+                    description: Azure subscription ID associated with the cost center.
+                      Only present for cost centers linked to Azure subscriptions.
+                  state:
+                    type: string
+                    description: State of the cost center.
+                    enum:
+                    - active
+                    - deleted
                   resources:
                     type: array
                     description: List of resources assigned to this cost center
@@ -19923,6 +19955,17 @@ paths:
                   name:
                     type: string
                     description: Name of the cost center.
+                  azure_subscription:
+                    type: string
+                    nullable: true
+                    description: Azure subscription ID associated with the cost center.
+                      Only present for cost centers linked to Azure subscriptions.
+                  state:
+                    type: string
+                    description: State of the cost center.
+                    enum:
+                    - active
+                    - deleted
                   resources:
                     type: array
                     items:
@@ -19944,8 +19987,10 @@ paths:
               examples:
                 default: &163
                   value:
-                  - id: 2eeb8ffe-6903-11ee-8c99-0242ac120002
+                    id: 2eeb8ffe-6903-11ee-8c99-0242ac120002
                     name: Cost Center Name
+                    state: active
+                    azure_subscription: aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee
                     resources:
                     - type: User
                       name: Monalisa
@@ -40436,6 +40481,7 @@ paths:
                     pending_cancellation_date: 
                     last_activity_at: '2021-10-14T00:53:32-06:00'
                     last_activity_editor: vscode/1.77.3/copilot/1.86.82
+                    last_authenticated_at: '2021-10-14T00:53:32-06:00'
                     plan_type: business
                     assignee:
                       login: octocat
diff --git a/descriptions/ghec/ghec.2022-11-28.json b/descriptions/ghec/ghec.2022-11-28.json
index 9b6b76ca5..ad27e891c 100644
--- a/descriptions/ghec/ghec.2022-11-28.json
+++ b/descriptions/ghec/ghec.2022-11-28.json
@@ -9987,6 +9987,19 @@
                       "type": "string",
                       "description": "Name of the cost center"
                     },
+                    "azure_subscription": {
+                      "type": "string",
+                      "nullable": true,
+                      "description": "Azure subscription ID associated with the cost center. Only present for cost centers linked to Azure subscriptions."
+                    },
+                    "state": {
+                      "type": "string",
+                      "description": "State of the cost center.",
+                      "enum": [
+                        "active",
+                        "deleted"
+                      ]
+                    },
                     "resources": {
                       "type": "array",
                       "description": "List of resources assigned to this cost center",
@@ -118433,6 +118446,12 @@
             "nullable": true,
             "description": "Last editor that was used by the user for a GitHub Copilot completion."
           },
+          "last_authenticated_at": {
+            "type": "string",
+            "format": "date-time",
+            "nullable": true,
+            "description": "Timestamp of the last time the user authenticated with GitHub Copilot, in ISO 8601 format."
+          },
           "created_at": {
             "type": "string",
             "format": "date-time",
@@ -121746,6 +121765,11 @@
                     "deleted"
                   ]
                 },
+                "azure_subscription": {
+                  "type": "string",
+                  "nullable": true,
+                  "description": "Azure subscription ID associated with the cost center. Only present for cost centers linked to Azure subscriptions."
+                },
                 "resources": {
                   "type": "array",
                   "items": {
@@ -121787,6 +121811,19 @@
             "type": "string",
             "description": "Name of the cost center."
           },
+          "azure_subscription": {
+            "type": "string",
+            "nullable": true,
+            "description": "Azure subscription ID associated with the cost center. Only present for cost centers linked to Azure subscriptions."
+          },
+          "state": {
+            "type": "string",
+            "description": "State of the cost center.",
+            "enum": [
+              "active",
+              "deleted"
+            ]
+          },
           "resources": {
             "type": "array",
             "items": {
@@ -294184,6 +294221,7 @@
               "pending_cancellation_date": null,
               "last_activity_at": "2021-10-14T00:53:32-06:00",
               "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+              "last_authenticated_at": "2021-10-14T00:53:32-06:00",
               "plan_type": "business",
               "assignee": {
                 "login": "octocat",
@@ -294227,6 +294265,7 @@
               "pending_cancellation_date": "2021-11-01",
               "last_activity_at": "2021-10-13T00:53:32-06:00",
               "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+              "last_authenticated_at": "2021-10-14T00:53:32-06:00",
               "assignee": {
                 "login": "octokitten",
                 "id": 1,
@@ -295375,6 +295414,7 @@
               "id": "2eeb8ffe-6903-11ee-8c99-0242ac120002",
               "name": "Cost Center Name",
               "state": "active",
+              "azure_subscription": "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee",
               "resources": [
                 {
                   "type": "User",
@@ -295385,27 +295425,38 @@
                   "name": "octocat/hello-world"
                 }
               ]
+            },
+            {
+              "id": "3ffb9ffe-6903-11ee-8c99-0242ac120003",
+              "name": "Another Cost Center",
+              "state": "active",
+              "resources": [
+                {
+                  "type": "User",
+                  "name": "Octocat"
+                }
+              ]
             }
           ]
         }
       },
       "get-cost-center": {
-        "value": [
-          {
-            "id": "2eeb8ffe-6903-11ee-8c99-0242ac120002",
-            "name": "Cost Center Name",
-            "resources": [
-              {
-                "type": "User",
-                "name": "Monalisa"
-              },
-              {
-                "type": "Repo",
-                "name": "octocat/hello-world"
-              }
-            ]
-          }
-        ]
+        "value": {
+          "id": "2eeb8ffe-6903-11ee-8c99-0242ac120002",
+          "name": "Cost Center Name",
+          "state": "active",
+          "azure_subscription": "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee",
+          "resources": [
+            {
+              "type": "User",
+              "name": "Monalisa"
+            },
+            {
+              "type": "Repo",
+              "name": "octocat/hello-world"
+            }
+          ]
+        }
       },
       "delete-cost-center": {
         "value": {
@@ -299994,6 +300045,7 @@
           "pending_cancellation_date": null,
           "last_activity_at": "2021-10-14T00:53:32-06:00",
           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
           "plan_type": "business",
           "assignee": {
             "login": "octocat",
diff --git a/descriptions/ghec/ghec.2022-11-28.yaml b/descriptions/ghec/ghec.2022-11-28.yaml
index 00fb16cf2..a56b75f69 100644
--- a/descriptions/ghec/ghec.2022-11-28.yaml
+++ b/descriptions/ghec/ghec.2022-11-28.yaml
@@ -7037,6 +7037,17 @@ paths:
                   name:
                     type: string
                     description: Name of the cost center
+                  azure_subscription:
+                    type: string
+                    nullable: true
+                    description: Azure subscription ID associated with the cost center.
+                      Only present for cost centers linked to Azure subscriptions.
+                  state:
+                    type: string
+                    description: State of the cost center.
+                    enum:
+                    - active
+                    - deleted
                   resources:
                     type: array
                     description: List of resources assigned to this cost center
@@ -86012,6 +86023,12 @@ components:
           nullable: true
           description: Last editor that was used by the user for a GitHub Copilot
             completion.
+        last_authenticated_at:
+          type: string
+          format: date-time
+          nullable: true
+          description: Timestamp of the last time the user authenticated with GitHub
+            Copilot, in ISO 8601 format.
         created_at:
           type: string
           format: date-time
@@ -88568,6 +88585,11 @@ components:
                 enum:
                 - active
                 - deleted
+              azure_subscription:
+                type: string
+                nullable: true
+                description: Azure subscription ID associated with the cost center.
+                  Only present for cost centers linked to Azure subscriptions.
               resources:
                 type: array
                 items:
@@ -88595,6 +88617,17 @@ components:
         name:
           type: string
           description: Name of the cost center.
+        azure_subscription:
+          type: string
+          nullable: true
+          description: Azure subscription ID associated with the cost center. Only
+            present for cost centers linked to Azure subscriptions.
+        state:
+          type: string
+          description: State of the cost center.
+          enum:
+          - active
+          - deleted
         resources:
           type: array
           items:
@@ -219763,6 +219796,7 @@ components:
           pending_cancellation_date: 
           last_activity_at: '2021-10-14T00:53:32-06:00'
           last_activity_editor: vscode/1.77.3/copilot/1.86.82
+          last_authenticated_at: '2021-10-14T00:53:32-06:00'
           plan_type: business
           assignee:
             login: octocat
@@ -219802,6 +219836,7 @@ components:
           pending_cancellation_date: '2021-11-01'
           last_activity_at: '2021-10-13T00:53:32-06:00'
           last_activity_editor: vscode/1.77.3/copilot/1.86.82
+          last_authenticated_at: '2021-10-14T00:53:32-06:00'
           assignee:
             login: octokitten
             id: 1
@@ -220694,15 +220729,24 @@ components:
         - id: 2eeb8ffe-6903-11ee-8c99-0242ac120002
           name: Cost Center Name
           state: active
+          azure_subscription: aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee
           resources:
           - type: User
             name: Monalisa
           - type: Repo
             name: octocat/hello-world
+        - id: 3ffb9ffe-6903-11ee-8c99-0242ac120003
+          name: Another Cost Center
+          state: active
+          resources:
+          - type: User
+            name: Octocat
     get-cost-center:
       value:
-      - id: 2eeb8ffe-6903-11ee-8c99-0242ac120002
+        id: 2eeb8ffe-6903-11ee-8c99-0242ac120002
         name: Cost Center Name
+        state: active
+        azure_subscription: aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee
         resources:
         - type: User
           name: Monalisa
@@ -224631,6 +224675,7 @@ components:
         pending_cancellation_date: 
         last_activity_at: '2021-10-14T00:53:32-06:00'
         last_activity_editor: vscode/1.77.3/copilot/1.86.82
+        last_authenticated_at: '2021-10-14T00:53:32-06:00'
         plan_type: business
         assignee:
           login: octocat
diff --git a/descriptions/ghec/ghec.json b/descriptions/ghec/ghec.json
index 9b6b76ca5..ad27e891c 100644
--- a/descriptions/ghec/ghec.json
+++ b/descriptions/ghec/ghec.json
@@ -9987,6 +9987,19 @@
                       "type": "string",
                       "description": "Name of the cost center"
                     },
+                    "azure_subscription": {
+                      "type": "string",
+                      "nullable": true,
+                      "description": "Azure subscription ID associated with the cost center. Only present for cost centers linked to Azure subscriptions."
+                    },
+                    "state": {
+                      "type": "string",
+                      "description": "State of the cost center.",
+                      "enum": [
+                        "active",
+                        "deleted"
+                      ]
+                    },
                     "resources": {
                       "type": "array",
                       "description": "List of resources assigned to this cost center",
@@ -118433,6 +118446,12 @@
             "nullable": true,
             "description": "Last editor that was used by the user for a GitHub Copilot completion."
           },
+          "last_authenticated_at": {
+            "type": "string",
+            "format": "date-time",
+            "nullable": true,
+            "description": "Timestamp of the last time the user authenticated with GitHub Copilot, in ISO 8601 format."
+          },
           "created_at": {
             "type": "string",
             "format": "date-time",
@@ -121746,6 +121765,11 @@
                     "deleted"
                   ]
                 },
+                "azure_subscription": {
+                  "type": "string",
+                  "nullable": true,
+                  "description": "Azure subscription ID associated with the cost center. Only present for cost centers linked to Azure subscriptions."
+                },
                 "resources": {
                   "type": "array",
                   "items": {
@@ -121787,6 +121811,19 @@
             "type": "string",
             "description": "Name of the cost center."
           },
+          "azure_subscription": {
+            "type": "string",
+            "nullable": true,
+            "description": "Azure subscription ID associated with the cost center. Only present for cost centers linked to Azure subscriptions."
+          },
+          "state": {
+            "type": "string",
+            "description": "State of the cost center.",
+            "enum": [
+              "active",
+              "deleted"
+            ]
+          },
           "resources": {
             "type": "array",
             "items": {
@@ -294184,6 +294221,7 @@
               "pending_cancellation_date": null,
               "last_activity_at": "2021-10-14T00:53:32-06:00",
               "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+              "last_authenticated_at": "2021-10-14T00:53:32-06:00",
               "plan_type": "business",
               "assignee": {
                 "login": "octocat",
@@ -294227,6 +294265,7 @@
               "pending_cancellation_date": "2021-11-01",
               "last_activity_at": "2021-10-13T00:53:32-06:00",
               "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+              "last_authenticated_at": "2021-10-14T00:53:32-06:00",
               "assignee": {
                 "login": "octokitten",
                 "id": 1,
@@ -295375,6 +295414,7 @@
               "id": "2eeb8ffe-6903-11ee-8c99-0242ac120002",
               "name": "Cost Center Name",
               "state": "active",
+              "azure_subscription": "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee",
               "resources": [
                 {
                   "type": "User",
@@ -295385,27 +295425,38 @@
                   "name": "octocat/hello-world"
                 }
               ]
+            },
+            {
+              "id": "3ffb9ffe-6903-11ee-8c99-0242ac120003",
+              "name": "Another Cost Center",
+              "state": "active",
+              "resources": [
+                {
+                  "type": "User",
+                  "name": "Octocat"
+                }
+              ]
             }
           ]
         }
       },
       "get-cost-center": {
-        "value": [
-          {
-            "id": "2eeb8ffe-6903-11ee-8c99-0242ac120002",
-            "name": "Cost Center Name",
-            "resources": [
-              {
-                "type": "User",
-                "name": "Monalisa"
-              },
-              {
-                "type": "Repo",
-                "name": "octocat/hello-world"
-              }
-            ]
-          }
-        ]
+        "value": {
+          "id": "2eeb8ffe-6903-11ee-8c99-0242ac120002",
+          "name": "Cost Center Name",
+          "state": "active",
+          "azure_subscription": "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee",
+          "resources": [
+            {
+              "type": "User",
+              "name": "Monalisa"
+            },
+            {
+              "type": "Repo",
+              "name": "octocat/hello-world"
+            }
+          ]
+        }
       },
       "delete-cost-center": {
         "value": {
@@ -299994,6 +300045,7 @@
           "pending_cancellation_date": null,
           "last_activity_at": "2021-10-14T00:53:32-06:00",
           "last_activity_editor": "vscode/1.77.3/copilot/1.86.82",
+          "last_authenticated_at": "2021-10-14T00:53:32-06:00",
           "plan_type": "business",
           "assignee": {
             "login": "octocat",
diff --git a/descriptions/ghec/ghec.yaml b/descriptions/ghec/ghec.yaml
index 00fb16cf2..a56b75f69 100644
--- a/descriptions/ghec/ghec.yaml
+++ b/descriptions/ghec/ghec.yaml
@@ -7037,6 +7037,17 @@ paths:
                   name:
                     type: string
                     description: Name of the cost center
+                  azure_subscription:
+                    type: string
+                    nullable: true
+                    description: Azure subscription ID associated with the cost center.
+                      Only present for cost centers linked to Azure subscriptions.
+                  state:
+                    type: string
+                    description: State of the cost center.
+                    enum:
+                    - active
+                    - deleted
                   resources:
                     type: array
                     description: List of resources assigned to this cost center
@@ -86012,6 +86023,12 @@ components:
           nullable: true
           description: Last editor that was used by the user for a GitHub Copilot
             completion.
+        last_authenticated_at:
+          type: string
+          format: date-time
+          nullable: true
+          description: Timestamp of the last time the user authenticated with GitHub
+            Copilot, in ISO 8601 format.
         created_at:
           type: string
           format: date-time
@@ -88568,6 +88585,11 @@ components:
                 enum:
                 - active
                 - deleted
+              azure_subscription:
+                type: string
+                nullable: true
+                description: Azure subscription ID associated with the cost center.
+                  Only present for cost centers linked to Azure subscriptions.
               resources:
                 type: array
                 items:
@@ -88595,6 +88617,17 @@ components:
         name:
           type: string
           description: Name of the cost center.
+        azure_subscription:
+          type: string
+          nullable: true
+          description: Azure subscription ID associated with the cost center. Only
+            present for cost centers linked to Azure subscriptions.
+        state:
+          type: string
+          description: State of the cost center.
+          enum:
+          - active
+          - deleted
         resources:
           type: array
           items:
@@ -219763,6 +219796,7 @@ components:
           pending_cancellation_date: 
           last_activity_at: '2021-10-14T00:53:32-06:00'
           last_activity_editor: vscode/1.77.3/copilot/1.86.82
+          last_authenticated_at: '2021-10-14T00:53:32-06:00'
           plan_type: business
           assignee:
             login: octocat
@@ -219802,6 +219836,7 @@ components:
           pending_cancellation_date: '2021-11-01'
           last_activity_at: '2021-10-13T00:53:32-06:00'
           last_activity_editor: vscode/1.77.3/copilot/1.86.82
+          last_authenticated_at: '2021-10-14T00:53:32-06:00'
           assignee:
             login: octokitten
             id: 1
@@ -220694,15 +220729,24 @@ components:
         - id: 2eeb8ffe-6903-11ee-8c99-0242ac120002
           name: Cost Center Name
           state: active
+          azure_subscription: aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee
           resources:
           - type: User
             name: Monalisa
           - type: Repo
             name: octocat/hello-world
+        - id: 3ffb9ffe-6903-11ee-8c99-0242ac120003
+          name: Another Cost Center
+          state: active
+          resources:
+          - type: User
+            name: Octocat
     get-cost-center:
       value:
-      - id: 2eeb8ffe-6903-11ee-8c99-0242ac120002
+        id: 2eeb8ffe-6903-11ee-8c99-0242ac120002
         name: Cost Center Name
+        state: active
+        azure_subscription: aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee
         resources:
         - type: User
           name: Monalisa
@@ -224631,6 +224675,7 @@ components:
         pending_cancellation_date: 
         last_activity_at: '2021-10-14T00:53:32-06:00'
         last_activity_editor: vscode/1.77.3/copilot/1.86.82
+        last_authenticated_at: '2021-10-14T00:53:32-06:00'
         plan_type: business
         assignee:
           login: octocat