Update README.md

README.md

@@ -27,7 +27,7 @@ Add this line to your application's Gemfile:
 
     gem 'swagger-blocks'
 
-Or install directly with `gem install swagger-blocks`. **Requires Ruby 2.1+**
+Or install directly with `gem install swagger-blocks`.
 
 ## Example (Rails)
 
@@ -183,6 +183,11 @@ See the [swagger_blocks_spec.rb](https://github.com/fotinakis/swagger-blocks/blo
 4. Push to the branch (`git push origin my-new-feature`)
 5. Create a new Pull Request
 
+## Release notes
+
+* v1.0.1: Make backwards-compatible with Ruby 1.9.3.
+* v1.0.0: Initial major release.
+
 ## Credits
 
 Original idea inspired by **[@richhollis](https://github.com/richhollis/)**'s [swagger-docs](https://github.com/richhollis/swagger-docs/) gem.