README.md in config-1.7.2 vs README.md in config-2.0.0

- old
+ new

@@ -1,10 +1,9 @@
 # Config
 
 [![Build Status](https://api.travis-ci.org/railsconfig/config.svg?branch=master)](http://travis-ci.org/railsconfig/config)
 [![Gem Version](https://badge.fury.io/rb/config.svg)](http://badge.fury.io/rb/config)
-[![Dependency Status](https://gemnasium.com/railsconfig/config.svg)](https://gemnasium.com/railsconfig/config)
 [![Maintainability](https://api.codeclimate.com/v1/badges/85c206c13dce7de090af/maintainability)](https://codeclimate.com/github/railsconfig/config/maintainability)
 [![Test Coverage](https://api.codeclimate.com/v1/badges/85c206c13dce7de090af/test_coverage)](https://codeclimate.com/github/railsconfig/config/test_coverage)
 
 ## Summary
 
@@ -19,20 +18,23 @@
 * support for multi-level settings (`Settings.group.subgroup.setting`)
 * local developer settings ignored when committing the code
 
 ## Compatibility
 
-* Ruby `2.x`
-* Rails `>= 3.1`, `4` and `5`
-* Padrino
-* Sinatra
+* Interpreters
+  * [Ruby](https://www.ruby-lang.org/en/) `>= 2.4`
+  * [TruffleRuby](https://github.com/oracle/truffleruby) `>= 19.0.0`
+* Application frameworks
+  * Rails `>= 4.2` and `5`
+  * Padrino
+  * Sinatra
 
-For older versions of Rails or Ruby use [AppConfig](http://github.com/fredwu/app_config).
+For Ruby `2.0` to `2.3` or Rails `3` to `4.1` use version `1.x` of this gem. For older versions of Rails or Ruby use [AppConfig](http://github.com/fredwu/app_config).
 
 ## Installing
 
-### Installing on Rails 3, 4 or 5
+### Installing on Rails
 
 Add `gem 'config'` to your `Gemfile` and run `bundle install` to install it. Then run
 
     rails g config:install
 
@@ -268,10 +270,11 @@
 * `const_name` - name of the object holing you settings. Default: `'Settings'`
 
 ### Merge customization
 
 * `overwrite_arrays` - overwrite arrays found in previously loaded settings file. Default: `true`
+* `merge_hash_arrays` - merge hashes inside of arrays from previously loaded settings files. Makes sense only when `overwrite_arrays = false`. Default: `false`
 * `knockout_prefix` - ability to remove elements of the array set in earlier loaded settings file. Makes sense only when `overwrite_arrays = false`, otherwise array settings would be overwritten by default. Default: `nil`
 * `merge_nil_values` - `nil` values will overwrite an existing value when merging configs. Default: `true`.
 
 ```ruby
 # merge_nil_values is true by default
@@ -315,10 +318,10 @@
 
 If you define a schema it will automatically be used to validate your config. If validation fails it will
 raise a `Config::Validation::Error` containing a nice message with information about all the mismatches
 between the schema and your config.
 
-Check [dry-validation](https://github.com/dry-rb/dry-validation) for more details.
+Check [dry-schema](https://github.com/dry-rb/dry-schema) for more details.
 
 ### Missing keys
 
 For an example settings file:
 