GHC 9.10.3-rc4 is now available

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Subject: GHC 9.10.3-rc4 is now available
MIME-Version: 1.0

The GHC developers are very pleased to announce the availability
of the fourth release candidate for GHC 9.10.3. Binary distributions, source
distributions, and documentation are available at [downloads.haskell.org][] and
via [GHCup](https://www.haskell.org/ghcup/).

GHC 9.10.3 is a bug-fix release fixing over 50 issues of a variety of
severities and scopes. A full accounting of these fixes can be found in the
[release notes][]. As always, GHC's release status, including planned future
releases, can be found on the GHC Wiki [status][].

The changes from the third release candidate are:

- A fix for a rare segfault with code involving STM (#26205)
- A fix for the `naturalAndNot` returning bogus results (#26205)
- A fix for a crash in the renamer (#25056)

This release candidate will have a two-week testing period. If all goes well
the final release will be available the week of 1 September 2025.

We would like to thank Well-Typed, Tweag I/O, Juspay, QBayLogic, Channable,
Serokell, SimSpace, the Haskell Foundation, and other anonymous contributors
whose on-going financial and in-kind support has facilitated GHC maintenance
and release management over the years. Finally, this release would not have
been possible without the hundreds of open-source contributors whose work
comprise this release.

As always, do give this release a try and open a [ticket][] if you see
anything amiss.


[release notes]: https://gitlab.haskell.org/ghc/ghc/-/blob/ghc-9.10/docs/users_guide/9.10.3-notes.rst?ref_type=heads&plain=1
[status]: https://gitlab.haskell.org/ghc/ghc/-/wikis/GHC-status
[downloads.haskell.org]: https://downloads.haskell.org/ghc/9.10.3-rc4
[ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new


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