diff --git a/api_names_out.yaml b/api_names_out.yaml
index dfd53947380..06d44c32c4c 100644
--- a/api_names_out.yaml
+++ b/api_names_out.yaml
@@ -61283,6 +61283,7 @@
 "/chat:v1/OpenLink": open_link
 "/chat:v1/OpenLink/url": url
 "/chat:v1/PermissionSetting": permission_setting
+"/chat:v1/PermissionSetting/assistantManagersAllowed": assistant_managers_allowed
 "/chat:v1/PermissionSetting/managersAllowed": managers_allowed
 "/chat:v1/PermissionSetting/membersAllowed": members_allowed
 "/chat:v1/PermissionSettings": permission_settings
diff --git a/generated/google-apis-chat_v1/CHANGELOG.md b/generated/google-apis-chat_v1/CHANGELOG.md
index 63a0c98cbab..83df6eda00d 100644
--- a/generated/google-apis-chat_v1/CHANGELOG.md
+++ b/generated/google-apis-chat_v1/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Release history for google-apis-chat_v1
 
+### v0.136.0 (2025-10-26)
+
+* Regenerated from discovery document revision 20251016
+
 ### v0.135.0 (2025-10-19)
 
 * Regenerated from discovery document revision 20251014
diff --git a/generated/google-apis-chat_v1/lib/google/apis/chat_v1/classes.rb b/generated/google-apis-chat_v1/lib/google/apis/chat_v1/classes.rb
index f23ce1325c8..c6b908dfaa7 100644
--- a/generated/google-apis-chat_v1/lib/google/apis/chat_v1/classes.rb
+++ b/generated/google-apis-chat_v1/lib/google/apis/chat_v1/classes.rb
@@ -5402,6 +5402,13 @@ def update!(**args)
       class PermissionSetting
         include Google::Apis::Core::Hashable
       
+        # Optional. Whether space managers `ROLE_ASSISTANT_MANAGER`) have this
+        # permission.
+        # Corresponds to the JSON property `assistantManagersAllowed`
+        # @return [Boolean]
+        attr_accessor :assistant_managers_allowed
+        alias_method :assistant_managers_allowed?, :assistant_managers_allowed
+      
         # Optional. Whether space owners (`ROLE_MANAGER`) have this permission.
         # Corresponds to the JSON property `managersAllowed`
         # @return [Boolean]
@@ -5420,6 +5427,7 @@ def initialize(**args)
       
         # Update properties of this object
         def update!(**args)
+          @assistant_managers_allowed = args[:assistant_managers_allowed] if args.key?(:assistant_managers_allowed)
           @managers_allowed = args[:managers_allowed] if args.key?(:managers_allowed)
           @members_allowed = args[:members_allowed] if args.key?(:members_allowed)
         end
@@ -5932,8 +5940,9 @@ class Space
         # customer` is the `id` from the [Admin SDK customer resource](https://
         # developers.google.com/admin-sdk/directory/reference/rest/v1/customers).
         # Private apps can also use the `customers/my_customer` alias to create the
-        # space in the same Google Workspace organization as the app. For DMs, this
-        # field isn't populated.
+        # space in the same Google Workspace organization as the app. This field isn't
+        # populated for direct messages (DMs) or when the space is created by non-Google
+        # Workspace users.
         # Corresponds to the JSON property `customer`
         # @return [String]
         attr_accessor :customer
diff --git a/generated/google-apis-chat_v1/lib/google/apis/chat_v1/gem_version.rb b/generated/google-apis-chat_v1/lib/google/apis/chat_v1/gem_version.rb
index c2d557a07ce..e6387a0f641 100644
--- a/generated/google-apis-chat_v1/lib/google/apis/chat_v1/gem_version.rb
+++ b/generated/google-apis-chat_v1/lib/google/apis/chat_v1/gem_version.rb
@@ -16,13 +16,13 @@ module Google
   module Apis
     module ChatV1
       # Version of the google-apis-chat_v1 gem
-      GEM_VERSION = "0.135.0"
+      GEM_VERSION = "0.136.0"
 
       # Version of the code generator used to generate this client
       GENERATOR_VERSION = "0.18.0"
 
       # Revision of the discovery document this client was generated from
-      REVISION = "20251014"
+      REVISION = "20251016"
     end
   end
 end
diff --git a/generated/google-apis-chat_v1/lib/google/apis/chat_v1/representations.rb b/generated/google-apis-chat_v1/lib/google/apis/chat_v1/representations.rb
index dd23937c9c1..b991a07afa5 100644
--- a/generated/google-apis-chat_v1/lib/google/apis/chat_v1/representations.rb
+++ b/generated/google-apis-chat_v1/lib/google/apis/chat_v1/representations.rb
@@ -2291,6 +2291,7 @@ class Representation < Google::Apis::Core::JsonRepresentation
       class PermissionSetting
         # @private
         class Representation < Google::Apis::Core::JsonRepresentation
+          property :assistant_managers_allowed, as: 'assistantManagersAllowed'
           property :managers_allowed, as: 'managersAllowed'
           property :members_allowed, as: 'membersAllowed'
         end