README.md in ember-cli-rails-0.11.0 vs README.md in ember-cli-rails-0.12.0

- old
+ new

@@ -658,11 +658,11 @@
 
 ## Ruby and Rails support
 
 This project supports:
 
-* Ruby versions `>= 2.2.0`
-* Rails versions `>=4.2.x`.
+* Ruby versions `>= 2.5.0`
+* Rails versions `>=5.2.x`.
 
 To learn more about supported versions and upgrades, read the [upgrading guide].
 
 [upgrading guide]: /UPGRADING.md
 