README.md in twitter-5.8.0 vs README.md in twitter-5.9.0

@@ -74,30 +74,26 @@
 Note: `oauth_token` has been renamed to `access_token` and `oauth_token_secret`
 is now `access_token_secret` to conform to the terminology used in Twitter's
 developer documentation.
 
 ### Streaming (Experimental)
-This library now offers support for the [Twitter Streaming API][streaming]. We
-previously recommended using [TweetStream][] for this, however [TweetStream
-does not work on Ruby 2.0.0][bug].
+This library now offers support for the [Twitter Streaming API][streaming].
 
 [streaming]: https://dev.twitter.com/docs/streaming-apis
 [tweetstream]: http://rubygems.org/gems/tweetstream
-[bug]: https://github.com/tweetstream/tweetstream/issues/117
 
 Site Streams are restricted to whitelisted accounts. To apply for access,
 [follow the steps in the Site Streams documentation][site-streams]. [User
 Streams][user-streams] do not require prior approval.
 
 [site-streams]: https://dev.twitter.com/docs/streaming-apis/streams/site#Applying_for_access
 [user-streams]: https://dev.twitter.com/docs/streaming-apis/streams/user
 
 Unlike the rest of this library, this feature is not well tested and not
-recommended for production applications. That said, if you need to do Twitter
-streaming on Ruby 2.0.0, this is probably your best option. I've decided to
-ship it as an experimental feature and make it more robust over time. Patches
-in this area are particularly welcome.
+recommended for production applications. I've decided to ship it as an
+experimental feature and make it more robust over time. Patches in this area are
+particularly welcome.
 
 Hopefully, by the time version 6 is released, this gem can fully replace
 [TweetStream][], [em-twitter][], [twitterstream][], and [twitter-stream].
 Special thanks to [Steve Agalloco][spagalloco], [Tim Carey-Smith][halorgium],
 and [Tony Arcieri][tarcieri] for helping to develop this feature.
@@ -151,16 +147,16 @@
   end
 end
 ```
 
 An `object` may be one of the following:
-* Twitter::DirectMessage
-* Twitter::Streaming::DeletedTweet
-* Twitter::Streaming::Event
-* Twitter::Streaming::FriendList
-* Twitter::Streaming::StallWarning
-* Twitter::Tweet
+* `Twitter::DirectMessage`
+* `Twitter::Streaming::DeletedTweet`
+* `Twitter::Streaming::Event`
+* `Twitter::Streaming::FriendList`
+* `Twitter::Streaming::StallWarning`
+* `Twitter::Tweet`
 
 ### Cursors
 The `Twitter::Cursor` class has been completely redesigned with a focus on
 simplicity and performance.
 
@@ -386,15 +382,10 @@
 * `#lists_owned` is now `#owned_lists`
 * `#saved_search_create` is now `#create_saved_search`
 * `#saved_search_destroy` is now `#destroy_saved_search`
 * `#status_destroy` is now `#destroy_status`
 
-### Errors
-The `Twitter::Error::ClientError` and `Twitter::Error::ServerError` class
-hierarchy has been removed. All errors now inherit directly from
-`Twitter::Error`.
-
 ### Null Objects
 In version 4, methods you would expect to return a `Twitter` object would
 return `nil` if that object was missing. This may have resulted in a
 `NoMethodError`. To prevent such errors, you may have introduced checks for the
 truthiness of the response, for example:
@@ -465,26 +456,9 @@
 
 After configuration, requests can be made like so:
 
 ```ruby
 client.update("I'm tweeting with @gem!")
-```
-
-### Middleware
-The Faraday middleware stack is fully configurable and is exposed as a
-`Faraday::RackBuilder` object. You can modify the default middleware in-place:
-
-```ruby
-client.middleware.insert_after Twitter::Response::RaiseError, CustomMiddleware
-```
-
-A custom adapter may be set as part of a custom middleware stack:
-
-```ruby
-client.middleware = Faraday::RackBuilder.new do |faraday|
-  # Specify a middleware stack here
-  faraday.adapter :some_other_adapter
-end
 ```
 
 ## Usage Examples
 All examples require an authenticated Twitter client. See the section on <a
 href="#configuration">configuration</a>.