Return updated board on PUT /boards/:id

app/controllers/boards_controller.rb

@@ -50,7 +50,7 @@ def update
           redirect_to root_path, notice: "Saved (you were removed from the board)"
         end
       end
-      format.json { head :no_content }
+      format.json { render :show }
     end
   end
 

docs/api/sections/boards.md

@@ -126,7 +126,31 @@ __Request:__
 
 __Response:__
 
-Returns `204 No Content` on success.
+Returns `200 OK` with the updated board in the same shape as `GET /:account_slug/boards/:board_id`:
+
+```json
+{
+  "id": "03f5v9zkft4hj9qq0lsn9ohcm",
+  "name": "Updated board name",
+  "all_access": false,
+  "created_at": "2025-12-05T19:36:35.534Z",
+  "auto_postpone_period_in_days": 30,
+  "url": "http://app.fizzy.localhost:3006/897362094/boards/03f5v9zkft4hj9qq0lsn9ohcm",
+  "creator": {
+    "id": "03f5v9zjw7pz8717a4no1h8a7",
+    "name": "David Heinemeier Hansson",
+    "role": "owner",
+    "active": true,
+    "email_address": "david@example.com",
+    "created_at": "2025-12-05T19:36:35.401Z",
+    "url": "http://app.fizzy.localhost:3006/897362094/users/03f5v9zjw7pz8717a4no1h8a7"
+  },
+  "user_ids": [
+    "03f5v9zppzlksuj4mxba2nbzn",
+    "03f5v9zjw7pz8717a4no1h8a7"
+  ]
+}
+```
 
 ## `DELETE /:account_slug/boards/:board_id`
 

test/controllers/boards_controller_test.rb

@@ -344,8 +344,13 @@ class BoardsControllerTest < ActionDispatch::IntegrationTest
 
     put board_path(board), params: { board: { name: "Updated Name" } }, as: :json
 
-    assert_response :no_content
+    assert_response :success
     assert_equal "Updated Name", board.reload.name
+
+    json = @response.parsed_body
+    assert_equal board.id, json["id"]
+    assert_equal "Updated Name", json["name"]
+    assert_equal board.creator.id, json["creator"]["id"]
   end
 
   test "destroy as JSON" do