2026/01/05

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2026-01-05 01:02:59 +0100ljdarj(~Thunderbi@user/ljdarj) (Ping timeout: 260 seconds)
2026-01-05 01:04:02 +0100 <haskellbridge> <maerwald> sm: what is sad about a stable and well working GHC release?
2026-01-05 01:04:40 +0100 <haskellbridge> <maerwald> Should we switch to 9.8 which is abandoned or to 9.10 which has two minor broken releases (including the last one)?
2026-01-05 01:05:07 +0100merijn(~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn
2026-01-05 01:05:17 +0100 <haskellbridge> <maerwald> 'recommended' isn't for people who want to follow the latest releases.
2026-01-05 01:06:57 +0100 <haskellbridge> <maerwald> Sorry, 9.12 is the one that's broken... I'm starting to mix up all the broken releases
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2026-01-05 01:10:11 +0100 <haskellbridge> <sm> @maerwald that's a fine thing of course. I acknowledged the no doubt excellent reasons in the linked discussion with my thumbs up. I called it sad mainly because as an experienced haskeller I expect many difficulties building current projects or using tools, and many known limitations, with those older ghc versions.
2026-01-05 01:10:15 +0100 <haskellbridge> <maerwald> 9.6 is documented as suitable for use: https://gitlab.haskell.org/ghc/ghc/-/wikis/GHC-status
2026-01-05 01:10:41 +0100 <haskellbridge> <maerwald> sm: What difficulties?
2026-01-05 01:12:15 +0100 <haskellbridge> <sm> i don't have a list handy. But in my time as a maintainer and packager I've worked around a ton of ghc version and platform specific bugs or limitations
2026-01-05 01:14:21 +0100 <haskellbridge> <maerwald> What limitations?
2026-01-05 01:14:38 +0100 <haskellbridge> <maerwald> Why is 9.6 more limited than 9.10?
2026-01-05 01:15:58 +0100 <haskellbridge> <sm> I did not prepare a list in advance of this chat have forgotten them for the moment. I could go digging in my issue tracker but it's not important
2026-01-05 01:18:15 +0100merijn(~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn
2026-01-05 01:19:24 +0100 <haskellbridge> <maerwald> If you make this claim then I think it's important
2026-01-05 01:20:18 +0100 <haskellbridge> <sm> I mean, I would make the effort if you are truly considering bumping the recommendation. I assume you've seen them all though and will bump when you judge best
2026-01-05 01:20:30 +0100 <haskellbridge> <maerwald> My experience in 10 years of Haskell shows that the difficulties and limitations lie within NEW GHC versions.
2026-01-05 01:20:41 +0100 <haskellbridge> <maerwald> There's a whole github repo dedicated to it
2026-01-05 01:21:07 +0100 <haskellbridge> <sm> of course those exist too
2026-01-05 01:21:23 +0100 <haskellbridge> <maerwald> https://github.com/tomjaguarpaw/tilapia
2026-01-05 01:21:34 +0100 <haskellbridge> <maerwald> And tooling works fine with 9.6
2026-01-05 01:21:46 +0100 <haskellbridge> <maerwald> It doesn't work as fine with new GHC versions
2026-01-05 01:21:50 +0100 <haskellbridge> <maerwald> That's a fact
2026-01-05 01:22:24 +0100 <haskellbridge> <maerwald> So I think your claim is wrong
2026-01-05 01:23:22 +0100merijn(~merijn@host-cl.cgnat-g.v4.dfn.nl) (Ping timeout: 246 seconds)
2026-01-05 01:23:27 +0100 <haskellbridge> <sm> fair enough, I won't argue with you
2026-01-05 01:25:16 +0100 <haskellbridge> <sm> and as always, thank you for your work, it's appreciated
2026-01-05 01:27:36 +0100 <haskellbridge> <maerwald> But going forward, GHCup will follow GHCs official LTS releases most likely
2026-01-05 01:27:53 +0100 <haskellbridge> <maerwald> Once they've matured, that is
2026-01-05 01:28:11 +0100 <haskellbridge> <sm> that'll be great, I'm looking forward to it
2026-01-05 01:28:52 +0100 <haskellbridge> <maerwald> An LTS release is decided beforehand with no knowledge about its quality. So we'll probably wait until the micro version is at 3 or higher
2026-01-05 01:30:35 +0100 <haskellbridge> <sm> or if it's so good there's no minor release for a year, you might make an exception ?
2026-01-05 01:32:08 +0100GdeVolpiano(~GdeVolpia@user/GdeVolpiano) (Ping timeout: 260 seconds)
2026-01-05 01:32:15 +0100 <haskellbridge> <sm> rather unlikely I suppose
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2026-01-05 02:20:37 +0100 <oats> why does so much code in base and ghc use `case` for binding instead of `let` or `where`? like here: https://hackage-content.haskell.org/package/ghc-internal-9.1401.0/docs/src/GHC.Internal.Arr.html#n…
2026-01-05 02:21:14 +0100 <c_wraith> let/where create a thunk when they match on a pattern. case forces evaluation.
2026-01-05 02:21:38 +0100 <c_wraith> > let Just x = Nothing in ()
2026-01-05 02:21:38 +0100merijn(~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn
2026-01-05 02:22:25 +0100 <c_wraith> huh. lambdabot isn't in here right now
2026-01-05 02:22:53 +0100 <EvanR> let x = whatever in y, a thunk makes sense
2026-01-05 02:23:15 +0100 <EvanR> but let Pattern x y z = hopefullyPattern in e ?