Possible runtime overhead of wrapping the IO monad?

[Brian Hulley]

Simon Peyton-Jones wrote:
> Brian
> 
> I've committed a fix for this. By which I mean that you don't need to
> write dropRenderM.  You can just use RenderM as if it were IO.
> 
> The change won't be in 6.4.2, but it's in the HEAD and will be in 6.6

Thanks!

Cheers, Brian.