README.md in u-attributes-2.1.1 vs README.md in u-attributes-2.2.0

@@ -73,11 +73,11 @@
 
 # Compatibility
 
 | u-attributes   | branch  | ruby     |  activemodel  |
 | -------------- | ------- | -------- | ------------- |
-| 2.1.1          | main    | >= 2.2.0 | >= 3.2, < 6.1 |
+| 2.2.0          | main    | >= 2.2.0 | >= 3.2, < 6.1 |
 | 1.2.0          | v1.x    | >= 2.2.0 | >= 3.2, < 6.1 |
 
 > **Note**: The activemodel is an optional dependency, this module [can be enabled](#activemodelvalidation-extension) to validate the attributes.
 
 [⬆️ Back to Top](#table-of-contents-)
@@ -318,13 +318,12 @@
   attribute :age
   attribute :name, default: 'John Doe'
 end
 ```
 
-There are 3 different strategies to define default values.
+There are two different strategies to define default values.
 1. Pass a regular object, like in the previous example.
 2. Pass a `proc`/`lambda`, and if it has an argument you will receive the attribute value to do something before assign it.
-3. Pass a **callable**, that is, a `class`, `module` or `instance` which responds to the `call` method. The behavior will be like the previous item (`proc`/`lambda`).
 
 ```ruby
 class Person
   include Micro::Attributes.with(:initialize)