Sadly, OverloadedRecordFields won't be making it into 7.10.

That's a shame, do we know why? is it just not finished being implemented? I found a page[0] that said at some point they had stalled on refactoring something.

[0] https://ghc.haskell.org/trac/ghc/wiki/Records/OverloadedReco...

There's some info here: http://www.reddit.com/r/haskell/comments/2pnjdk/is_overloade....

tl;dr: The patch worked but was messy/overly complex, so it needs refactoring before it's merged.

That's a shame and the first I've heard of the delay. For me and the software that I write, this is a must have feature and I was very much looking forward to its release.

Only just saw this, thanks for the info.