I couldn’t find an announcement of the new version of Haddock. You can now document your libraries even more beautifully. For

example,

> -- \[

> -- f(k;n,p) = \Pr(X = k) = \binom n k  p^k(1-p)^{n-k}

> -- \]

will render as

Also don’t forget you can put really nice diagrams in your documentation e.g. http://hackage.haskell.org/package/diagrams-contrib-1.3.0.7/docs/Diagrams-Example-Logo.html and http://hackage.haskell.org/package/diagrams-contrib-1.3.0.7/docs/Diagrams-TwoD-Layout-Tree.html.