My favorites:<p>* support for registerised compilation on the ARM platform, using LLVM.<p>First class REPL!<p>* It is now possible to give any top-level declaration at the GHCi prompt<p>* Safe Haskell
Some of the cool new features include a relatively lightweight compiler plugin facility and the abilIty to now write down types that are parametrized over typeclass constraints. Also some of the on going work on data parallel Haskell has been integrated into this release.
This is probably a good place to ask:<p>Does anyone have any tips for web scraping with Haskell? I've used tagsoup but the memory usage is really bad (or maybe I'm using the wrong string type?) and the interface is really clunky compared to something like pyquery or hpricot.