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 # Koa vs Express
 
   Philosophically, Koa aims to "fix and replace node", whereas Express "augments node".
-  Koa uses co to rid apps of callback hell and simplify error handling.
-  It exposes its own `this.request` and `this.response` objects instead of node's `req` and `res` objects.
+  Koa uses promises and async functions to rid apps of callback hell and simplify error handling.
+  It exposes its own `ctx.request` and `ctx.response` objects instead of node's `req` and `res` objects.
 
   Express, on the other hand, augments node's `req` and `res` objects with additional properties and methods
   and includes many other "framework" features, such as routing and templating, which Koa does not.
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 ### Generated-based control flow
 
-  Thanks to co.
-
   No callback hell.
 
   Better error handling through try/catch.