CHANGELOG.md in telegram-bot-ruby-0.4.2 vs CHANGELOG.md in telegram-bot-ruby-0.5.0.beta1

@@ -1,5 +1,10 @@
 # Changelog
 
+## 0.5.0
+
+- Replace [httparty](https://github.com/jnunemaker/httparty) with [faraday](https://github.com/lostisland/faraday)
+- Implement [Bot API 2.0](https://core.telegram.org/bots/2-0-intro)
+
 ## 0.4.2
 
 - Let `Client#logger` be overwritten later (use `attr_accessor` instead of `attr_reader`)