diff --git a/descriptions-next/api.github.com/api.github.com.2022-11-28.json b/descriptions-next/api.github.com/api.github.com.2022-11-28.json
index a483af07a2..3246942c08 100644
--- a/descriptions-next/api.github.com/api.github.com.2022-11-28.json
+++ b/descriptions-next/api.github.com/api.github.com.2022-11-28.json
@@ -132854,6 +132854,27 @@
           "type"
         ]
       },
+      "repository-rule-params-dismissal-restriction": {
+        "title": "DismissalRestriction",
+        "description": "Specify people, teams, or apps allowed to dismiss pull request reviews.",
+        "type": "object",
+        "properties": {
+          "allowed_actors": {
+            "type": "array",
+            "description": "Specify people, teams, or apps allowed to dismiss pull request reviews.",
+            "items": {
+              "$ref": "#/components/schemas/repository-rule-params-actor"
+            }
+          },
+          "enabled": {
+            "type": "boolean",
+            "description": "Whether to restrict review dismissal to specific actors."
+          }
+        },
+        "required": [
+          "enabled"
+        ]
+      },
       "repository-rule-params-reviewer": {
         "title": "Reviewer",
         "description": "A required reviewing team",
diff --git a/descriptions-next/api.github.com/api.github.com.2022-11-28.yaml b/descriptions-next/api.github.com/api.github.com.2022-11-28.yaml
index b883ba3e13..cd2cbc2905 100644
--- a/descriptions-next/api.github.com/api.github.com.2022-11-28.yaml
+++ b/descriptions-next/api.github.com/api.github.com.2022-11-28.yaml
@@ -96921,6 +96921,23 @@ components:
       required:
       - id
       - type
+    repository-rule-params-dismissal-restriction:
+      title: DismissalRestriction
+      description: Specify people, teams, or apps allowed to dismiss pull request
+        reviews.
+      type: object
+      properties:
+        allowed_actors:
+          type: array
+          description: Specify people, teams, or apps allowed to dismiss pull request
+            reviews.
+          items:
+            "$ref": "#/components/schemas/repository-rule-params-actor"
+        enabled:
+          type: boolean
+          description: Whether to restrict review dismissal to specific actors.
+      required:
+      - enabled
     repository-rule-params-reviewer:
       title: Reviewer
       description: A required reviewing team
diff --git a/descriptions-next/api.github.com/api.github.com.2026-03-10.json b/descriptions-next/api.github.com/api.github.com.2026-03-10.json
index 463c98ef4a..6777c0e4b5 100644
--- a/descriptions-next/api.github.com/api.github.com.2026-03-10.json
+++ b/descriptions-next/api.github.com/api.github.com.2026-03-10.json
@@ -132257,6 +132257,27 @@
           "type"
         ]
       },
+      "repository-rule-params-dismissal-restriction": {
+        "title": "DismissalRestriction",
+        "description": "Specify people, teams, or apps allowed to dismiss pull request reviews.",
+        "type": "object",
+        "properties": {
+          "allowed_actors": {
+            "type": "array",
+            "description": "Specify people, teams, or apps allowed to dismiss pull request reviews.",
+            "items": {
+              "$ref": "#/components/schemas/repository-rule-params-actor"
+            }
+          },
+          "enabled": {
+            "type": "boolean",
+            "description": "Whether to restrict review dismissal to specific actors."
+          }
+        },
+        "required": [
+          "enabled"
+        ]
+      },
       "repository-rule-params-reviewer": {
         "title": "Reviewer",
         "description": "A required reviewing team",
diff --git a/descriptions-next/api.github.com/api.github.com.2026-03-10.yaml b/descriptions-next/api.github.com/api.github.com.2026-03-10.yaml
index 597843109c..2e44630e0d 100644
--- a/descriptions-next/api.github.com/api.github.com.2026-03-10.yaml
+++ b/descriptions-next/api.github.com/api.github.com.2026-03-10.yaml
@@ -96482,6 +96482,23 @@ components:
       required:
       - id
       - type
+    repository-rule-params-dismissal-restriction:
+      title: DismissalRestriction
+      description: Specify people, teams, or apps allowed to dismiss pull request
+        reviews.
+      type: object
+      properties:
+        allowed_actors:
+          type: array
+          description: Specify people, teams, or apps allowed to dismiss pull request
+            reviews.
+          items:
+            "$ref": "#/components/schemas/repository-rule-params-actor"
+        enabled:
+          type: boolean
+          description: Whether to restrict review dismissal to specific actors.
+      required:
+      - enabled
     repository-rule-params-reviewer:
       title: Reviewer
       description: A required reviewing team
diff --git a/descriptions-next/api.github.com/api.github.com.json b/descriptions-next/api.github.com/api.github.com.json
index cac521aeaa..3e6952b4c5 100644
--- a/descriptions-next/api.github.com/api.github.com.json
+++ b/descriptions-next/api.github.com/api.github.com.json
@@ -133728,6 +133728,27 @@
           "type"
         ]
       },
+      "repository-rule-params-dismissal-restriction": {
+        "title": "DismissalRestriction",
+        "description": "Specify people, teams, or apps allowed to dismiss pull request reviews.",
+        "type": "object",
+        "properties": {
+          "allowed_actors": {
+            "type": "array",
+            "description": "Specify people, teams, or apps allowed to dismiss pull request reviews.",
+            "items": {
+              "$ref": "#/components/schemas/repository-rule-params-actor"
+            }
+          },
+          "enabled": {
+            "type": "boolean",
+            "description": "Whether to restrict review dismissal to specific actors."
+          }
+        },
+        "required": [
+          "enabled"
+        ]
+      },
       "repository-rule-params-reviewer": {
         "title": "Reviewer",
         "description": "A required reviewing team",
diff --git a/descriptions-next/api.github.com/api.github.com.yaml b/descriptions-next/api.github.com/api.github.com.yaml
index c05ed8d95b..0223c4c585 100644
--- a/descriptions-next/api.github.com/api.github.com.yaml
+++ b/descriptions-next/api.github.com/api.github.com.yaml
@@ -97506,6 +97506,23 @@ components:
       required:
       - id
       - type
+    repository-rule-params-dismissal-restriction:
+      title: DismissalRestriction
+      description: Specify people, teams, or apps allowed to dismiss pull request
+        reviews.
+      type: object
+      properties:
+        allowed_actors:
+          type: array
+          description: Specify people, teams, or apps allowed to dismiss pull request
+            reviews.
+          items:
+            "$ref": "#/components/schemas/repository-rule-params-actor"
+        enabled:
+          type: boolean
+          description: Whether to restrict review dismissal to specific actors.
+      required:
+      - enabled
     repository-rule-params-reviewer:
       title: Reviewer
       description: A required reviewing team
diff --git a/descriptions-next/ghec/ghec.2022-11-28.json b/descriptions-next/ghec/ghec.2022-11-28.json
index 15b4357f18..86f3ebb50b 100644
--- a/descriptions-next/ghec/ghec.2022-11-28.json
+++ b/descriptions-next/ghec/ghec.2022-11-28.json
@@ -141543,6 +141543,27 @@
           "type"
         ]
       },
+      "repository-rule-params-dismissal-restriction": {
+        "title": "DismissalRestriction",
+        "description": "Specify people, teams, or apps allowed to dismiss pull request reviews.",
+        "type": "object",
+        "properties": {
+          "allowed_actors": {
+            "type": "array",
+            "description": "Specify people, teams, or apps allowed to dismiss pull request reviews.",
+            "items": {
+              "$ref": "#/components/schemas/repository-rule-params-actor"
+            }
+          },
+          "enabled": {
+            "type": "boolean",
+            "description": "Whether to restrict review dismissal to specific actors."
+          }
+        },
+        "required": [
+          "enabled"
+        ]
+      },
       "repository-rule-params-reviewer": {
         "title": "Reviewer",
         "description": "A required reviewing team",
diff --git a/descriptions-next/ghec/ghec.2022-11-28.yaml b/descriptions-next/ghec/ghec.2022-11-28.yaml
index a2391cbd48..7f78d412f1 100644
--- a/descriptions-next/ghec/ghec.2022-11-28.yaml
+++ b/descriptions-next/ghec/ghec.2022-11-28.yaml
@@ -102962,6 +102962,23 @@ components:
       required:
       - id
       - type
+    repository-rule-params-dismissal-restriction:
+      title: DismissalRestriction
+      description: Specify people, teams, or apps allowed to dismiss pull request
+        reviews.
+      type: object
+      properties:
+        allowed_actors:
+          type: array
+          description: Specify people, teams, or apps allowed to dismiss pull request
+            reviews.
+          items:
+            "$ref": "#/components/schemas/repository-rule-params-actor"
+        enabled:
+          type: boolean
+          description: Whether to restrict review dismissal to specific actors.
+      required:
+      - enabled
     repository-rule-params-reviewer:
       title: Reviewer
       description: A required reviewing team
diff --git a/descriptions-next/ghec/ghec.2026-03-10.json b/descriptions-next/ghec/ghec.2026-03-10.json
index 86ad6e9d6f..f819c549d9 100644
--- a/descriptions-next/ghec/ghec.2026-03-10.json
+++ b/descriptions-next/ghec/ghec.2026-03-10.json
@@ -141315,6 +141315,27 @@
           "type"
         ]
       },
+      "repository-rule-params-dismissal-restriction": {
+        "title": "DismissalRestriction",
+        "description": "Specify people, teams, or apps allowed to dismiss pull request reviews.",
+        "type": "object",
+        "properties": {
+          "allowed_actors": {
+            "type": "array",
+            "description": "Specify people, teams, or apps allowed to dismiss pull request reviews.",
+            "items": {
+              "$ref": "#/components/schemas/repository-rule-params-actor"
+            }
+          },
+          "enabled": {
+            "type": "boolean",
+            "description": "Whether to restrict review dismissal to specific actors."
+          }
+        },
+        "required": [
+          "enabled"
+        ]
+      },
       "repository-rule-params-reviewer": {
         "title": "Reviewer",
         "description": "A required reviewing team",
diff --git a/descriptions-next/ghec/ghec.2026-03-10.yaml b/descriptions-next/ghec/ghec.2026-03-10.yaml
index 9b1a4e8078..2602916877 100644
--- a/descriptions-next/ghec/ghec.2026-03-10.yaml
+++ b/descriptions-next/ghec/ghec.2026-03-10.yaml
@@ -102778,6 +102778,23 @@ components:
       required:
       - id
       - type
+    repository-rule-params-dismissal-restriction:
+      title: DismissalRestriction
+      description: Specify people, teams, or apps allowed to dismiss pull request
+        reviews.
+      type: object
+      properties:
+        allowed_actors:
+          type: array
+          description: Specify people, teams, or apps allowed to dismiss pull request
+            reviews.
+          items:
+            "$ref": "#/components/schemas/repository-rule-params-actor"
+        enabled:
+          type: boolean
+          description: Whether to restrict review dismissal to specific actors.
+      required:
+      - enabled
     repository-rule-params-reviewer:
       title: Reviewer
       description: A required reviewing team
diff --git a/descriptions-next/ghec/ghec.json b/descriptions-next/ghec/ghec.json
index ba852730e0..37500676b5 100644
--- a/descriptions-next/ghec/ghec.json
+++ b/descriptions-next/ghec/ghec.json
@@ -142180,6 +142180,27 @@
           "type"
         ]
       },
+      "repository-rule-params-dismissal-restriction": {
+        "title": "DismissalRestriction",
+        "description": "Specify people, teams, or apps allowed to dismiss pull request reviews.",
+        "type": "object",
+        "properties": {
+          "allowed_actors": {
+            "type": "array",
+            "description": "Specify people, teams, or apps allowed to dismiss pull request reviews.",
+            "items": {
+              "$ref": "#/components/schemas/repository-rule-params-actor"
+            }
+          },
+          "enabled": {
+            "type": "boolean",
+            "description": "Whether to restrict review dismissal to specific actors."
+          }
+        },
+        "required": [
+          "enabled"
+        ]
+      },
       "repository-rule-params-reviewer": {
         "title": "Reviewer",
         "description": "A required reviewing team",
diff --git a/descriptions-next/ghec/ghec.yaml b/descriptions-next/ghec/ghec.yaml
index dacd0ba189..4a292b106a 100644
--- a/descriptions-next/ghec/ghec.yaml
+++ b/descriptions-next/ghec/ghec.yaml
@@ -103374,6 +103374,23 @@ components:
       required:
       - id
       - type
+    repository-rule-params-dismissal-restriction:
+      title: DismissalRestriction
+      description: Specify people, teams, or apps allowed to dismiss pull request
+        reviews.
+      type: object
+      properties:
+        allowed_actors:
+          type: array
+          description: Specify people, teams, or apps allowed to dismiss pull request
+            reviews.
+          items:
+            "$ref": "#/components/schemas/repository-rule-params-actor"
+        enabled:
+          type: boolean
+          description: Whether to restrict review dismissal to specific actors.
+      required:
+      - enabled
     repository-rule-params-reviewer:
       title: Reviewer
       description: A required reviewing team
diff --git a/descriptions-next/ghes-3.16/ghes-3.16.2022-11-28.json b/descriptions-next/ghes-3.16/ghes-3.16.2022-11-28.json
index 42714db60f..e83250b276 100644
--- a/descriptions-next/ghes-3.16/ghes-3.16.2022-11-28.json
+++ b/descriptions-next/ghes-3.16/ghes-3.16.2022-11-28.json
@@ -110720,6 +110720,27 @@
           "type"
         ]
       },
+      "repository-rule-params-dismissal-restriction": {
+        "title": "DismissalRestriction",
+        "description": "Specify people, teams, or apps allowed to dismiss pull request reviews.",
+        "type": "object",
+        "properties": {
+          "allowed_actors": {
+            "type": "array",
+            "description": "Specify people, teams, or apps allowed to dismiss pull request reviews.",
+            "items": {
+              "$ref": "#/components/schemas/repository-rule-params-actor"
+            }
+          },
+          "enabled": {
+            "type": "boolean",
+            "description": "Whether to restrict review dismissal to specific actors."
+          }
+        },
+        "required": [
+          "enabled"
+        ]
+      },
       "repository-rule-params-reviewer": {
         "title": "Reviewer",
         "description": "A required reviewing team",
diff --git a/descriptions-next/ghes-3.16/ghes-3.16.2022-11-28.yaml b/descriptions-next/ghes-3.16/ghes-3.16.2022-11-28.yaml
index bfe21949a3..86e8e60c4a 100644
--- a/descriptions-next/ghes-3.16/ghes-3.16.2022-11-28.yaml
+++ b/descriptions-next/ghes-3.16/ghes-3.16.2022-11-28.yaml
@@ -79850,6 +79850,23 @@ components:
       required:
       - id
       - type
+    repository-rule-params-dismissal-restriction:
+      title: DismissalRestriction
+      description: Specify people, teams, or apps allowed to dismiss pull request
+        reviews.
+      type: object
+      properties:
+        allowed_actors:
+          type: array
+          description: Specify people, teams, or apps allowed to dismiss pull request
+            reviews.
+          items:
+            "$ref": "#/components/schemas/repository-rule-params-actor"
+        enabled:
+          type: boolean
+          description: Whether to restrict review dismissal to specific actors.
+      required:
+      - enabled
     repository-rule-params-reviewer:
       title: Reviewer
       description: A required reviewing team
diff --git a/descriptions-next/ghes-3.16/ghes-3.16.json b/descriptions-next/ghes-3.16/ghes-3.16.json
index 42714db60f..e83250b276 100644
--{"code":"deadline_exceeded","msg":"operation timed out"}