Hi.

A few days ago I tried to install lambdabot package from hackage (4.2.3.2). Cabal install failed.

Then I found DanBurton's github repo with some approaches to make lambdabot install fixed.

All dependency packages (IOSpec, numbers) was already fixed.

So I add FlexibleInstances extension to cabal file and upload package to hackage.

I hope that did everything right.
-- 
Best regards,
dmitry malikov
!