Re-apply changes to dataclass docs from flytesnacks#1553

docs/user_guide/data_types_and_io/dataclass.md

@@ -35,6 +35,9 @@ If you're using Flytekit version below v1.10, you'll need to decorate with `@dat
 `from dataclass_json import dataclass_json` instead of inheriting from Mashumaro's `DataClassJSONMixin`.
 :::
 
+If you're using Flytekit version >= v1.11.1, you don't need to decorate with `@dataclass_json` or
+inherit from Mashumaro's `DataClassJSONMixin`.
+
 To begin, import the necessary dependencies.
 
 ```{code-cell}

docs/user_guide/data_types_and_io/index.md

@@ -99,8 +99,7 @@ Here's a breakdown of these mappings:
     * - ``@dataclass``
       - ``Struct``
       - Automatic
-      - The class should be a pure value class that inherits from Mashumaro's DataClassJSONMixin,
-        and be annotated with the ``@dataclass`` decorator.
+      - The class should be a pure value class annotated with the ``@dataclass`` decorator.
     * - ``np.ndarray``
       - File
       - Automatic