Thanks for the report - good catch!

FEDORA-2024-20a680325d (ghc-rpm-macros-2.7.2-3.fc41) has been submitted as an update to Fedora 41.
https://bodhi.fedoraproject.org/updates/FEDORA-2024-20a680325d

Hopefully that fixes it

FEDORA-2024-20a680325d has been pushed to the Fedora 41 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2024-20a680325d`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2024-20a680325d

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Thanks. The problem with ghc-foldable1-classes-compat-devel is fixed.

I'm still getting a few other problems:
Problem 1: installed package ghc-base64-0.4.2.4-28.fc40.x86_64 requires libHSarray-0.5.4.0-ghc9.4.5.so()(64bit), but none of the providers can be installed
  - cannot install both ghc-array-0.5.6.0-144.fc41.x86_64 from fedora and ghc-array-0.5.4.0-142.fc40.x86_64 from @System
  - cannot install the best update candidate for package ghc-base64-0.4.2.4-28.fc40.x86_64
  - cannot install the best update candidate for package ghc-array-0.5.4.0-142.fc40.x86_64
 Problem 2: installed package ghc-base64-devel-0.4.2.4-28.fc40.x86_64 requires ghc-devel(base-4.17.1.0), but none of the providers can be installed
  - cannot install both ghc-base-devel-4.18.2.1-144.fc41.x86_64 from fedora and ghc-base-devel-4.17.1.0-142.fc40.x86_64 from @System
  - cannot install the best update candidate for package ghc-base64-devel-0.4.2.4-28.fc40.x86_64
  - cannot install the best update candidate for package ghc-base-devel-4.17.1.0-142.fc40.x86_64
 Problem 3: cannot install both ghc-isocline-1.0.9-5.fc41.x86_64 from fedora and ghc-isocline-1.0.9-28.fc40.x86_64 from @System
  - package ghc-hslua-cli-1.4.3-32.fc41.x86_64 from fedora requires libHSisocline-1.0.9-2KCnLAEX6LA5YHxtEpLDUO-ghc9.6.6.so()(64bit), but none of the providers can be installed
  - cannot install the best update candidate for package ghc-isocline-1.0.9-28.fc40.x86_64
  - cannot install the best update candidate for package ghc-hslua-cli-1.4.2-29.fc40.x86_64
 Problem 4: cannot install both ghc-isocline-devel-1.0.9-5.fc41.x86_64 from fedora and ghc-isocline-devel-1.0.9-28.fc40.x86_64 from @System
  - package ghc-hslua-repl-devel-0.1.2-32.fc41.x86_64 from fedora requires ghc-devel(isocline-1.0.9-2KCnLAEX6LA5YHxtEpLDUO), but none of the providers can be installed
  - cannot install the best update candidate for package ghc-isocline-devel-1.0.9-28.fc40.x86_64
  - cannot install the best update candidate for package ghc-hslua-repl-devel-0.1.2-29.fc40.x86_64

I don't understand why it doesn't want to upgrade ghc-base64 to the f41 build.

Oh, maybe it actually does. The next part says:
Downgrading:
 ghc-base64                                              x86_64 0.4.2.4-6.fc41                           fedora            1.2 MiB
   replacing ghc-base64                                  x86_64 0.4.2.4-28.fc40                          updates-testing   1.5 MiB
 ghc-base64-devel                                        x86_64 0.4.2.4-6.fc41                           fedora            3.8 MiB
   replacing ghc-base64-devel                            x86_64 0.4.2.4-28.fc40                          updates-testing   4.2 MiB
 ghc-isocline                                            x86_64 1.0.9-5.fc41                             fedora          300.5 KiB
   replacing ghc-isocline                                x86_64 1.0.9-28.fc40                            updates-testing 312.7 KiB
 ghc-isocline-devel                                      x86_64 1.0.9-5.fc41                             fedora            3.1 MiB
   replacing ghc-isocline-devel                          x86_64 1.0.9-28.fc40                            updates-testing   9.4 MiB

So it's just complaining because the f41 build has a lower release.
Having a lower release number is accepted by the packaging guidelines, just a bit confusing.

Right, I noticed one or two of those - I think I messed up some of the %autorelease conversions ;-(

Maybe it is better to fix them too

Also icbw but I am feeling like these errors from dnf5 might be more noisy than they were with dnf4?

... which actually makes it pretty hard to extract the actual real problems, at least for me.

or dnf5 gets more confused by them perhaps?

(sorry for multiple replies)

I tried now with just ghc-base64-devel using both f40 dnf4 and dnf5
and they both seem to do nothing ie ignore possible downgrade for me.

[root@a4bb8ccba2b5 /]# dnf -q update --releasever=41 ghc-base64-devel 
[root@a4bb8ccba2b5 /]# dnf5 -q update --releasever=41 ghc-base64-devel
Nothing to do.

Let me bump both those packages, as well as these:

$ pkgtreediff -u "frpq 40 --qf '%{name}-%{version}-%{release}.%{arch}' ghc-*-devel" "frpq 41 --qf '%{name}-%{version}-%{release}.%{arch}' ghc-*-devel"
'ghc-base64-devel.x86_64': 0.4.2.4-28.fc40 -> 0.4.2.4-6.fc41
'ghc-cached-json-file-devel.x86_64': 0.1.1-16.fc40 -> 0.1.1-8.fc41
'ghc-isocline-devel.x86_64': 1.0.9-28.fc40 -> 1.0.9-5.fc41
'ghc-js-chart-devel.x86_64': 2.9.4.1-18.fc40 -> 2.9.4.1-7.fc41
'ghc-toml-parser-devel.x86_64': 1.3.2.0-29.fc40 -> 1.3.2.0-6.fc41

FEDORA-2024-20a680325d (ghc-rpm-macros-2.7.2-3.fc41) has been pushed to the Fedora 41 stable repository.
If problem still persists, please make note of it in this bug report.

https://bodhi.fedoraproject.org/updates/FEDORA-2024-974edc792e for the release bumps