Simon Marlow is announcing that with version number is already available to download.

What is ?

is . It currently supports the entire Haskell 98 language and a wide variety of language extensions. This is changelog for version :

• By default, GHC has a new warning enabled, -fwarn-typed-holes, which causes the compiler to respond with the types of unbound variables it encounters in the source code.
• It is now possible to declare a 'closed' type family when using the TypeFamilies extension.
• GHC now supports overloading list literals using the new OverloadedLists extension.
• GHC now supports pattern synonyms, enabled by the -XPatternSynonyms extension.

You can read the complete changelog and also download this latest version on their homepage: www.haskell.org