simonmarhaskell: > We'd like to solicit comments from the community on our plans for future > GHC releases. The current situation is this: > > - 6.6.1 is nearly ready to go (perhaps this week, please test the RC!) > - 6.6.2 has ~35 outstanding tickets > - 6.8 has ~150 outstanding tickets > > the default option would be to work on 6.6.2 and release it in a couple of > months, while continuing to work on 6.8 for a release in ~6 months or so. > > However, there's another option: we could skip 6.6.2 and head straight for > 6.8, the idea being to stabilise 6.8 with the existing feature set (plus a > few important developments in progress), so that we can get these features > out in a release sooner rather than later. The 6.6.2 tickets would be > moved to 6.8, and most of the outstanding 6.8 tickets would be pushed to > 6.8.1 or later, retaining only the features/bug-fixes that are essential > for the 6.8 release. > > Here's a quick summary of the major developments that we already have in > the 6.8 codebase: > > - Associated data types, and the new FC intermediate language > - GHCi debugger (although there's an overhaul of the breakpoint support > almost > ready to go in) > - Coverage (HPC) > - GADTs + typeclasses > - more packages moved from core to extralibs > - GHC API changes, compile to object code inside GHCi > - performance improvements: simplifier rewrite, and SpecConstr improvements > - standalone deriving declarations > - left-to-right impredicative instantiation: runST $ foo > > Here are the features in progress that we'd like to get into 6.8: > > - pointer-tagging (15% perf improvement for compiled code) > - get external core working again > - base package breakup (see discussion on libraries list)
Yes. Along with the new release of bytestring, on top of stream fusion. > - list fusion Ok. Still needs some work on GHC's optimiser, but the fusion system itself is done. So this is definitely doable. > > We think the above feature set makes for a pretty strong 6.8 release. > > What do you think of this plan? Are there features/bug-fixes that you > really want to see in 6.8? Sounds like a good plan. 6.8 here we come! -- Don _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
