Re: [Haskell-cafe] Platform Versioning Policy: upper bounds are not our friends

On Wed, Aug 15, 2012 at 9:38 PM, Bryan O'Sullivan wrote:

A benign change will obviously have no visible effect, while a compilation failure is actually *better* than a depsolver failure, because it's more informative.

But with upper bounds you give Cabal a chance to try and install a supported version, thus avoiding failure all together.