[Haskell-cafe] Re: How does cabal determine version ranges in the dependencies?

[Maurí­cio CA]

 > I recently started porting cabal-install to Freebsd. When
 > I looked at its dependencies on hackage, I noticed HTTP
 > (>=4000.0.2 && <4001). However the latest HTTP version on
 > hackage is 4000.0.8. That struck me as kinda odd. How can cabal
 > tell that it won't be compatible with HTTP version 4001?

If it doesn't break dependencies, it won't be called http 4001,
it will be called 4000.0.9 :)

Check:

http://www.haskell.org/haskellwiki/Package_versioning_policy

Best,
Maurício