The GHC developers are very pleased to announce the release of GHC 9.12.3.
Binary distributions, source distributions, and documentation are available at
[downloads.haskell.org][].

GHC 9.12.3 is a bug-fix release fixing many issues of a variety of
severities and scopes, including:

* Fix a number of crashes and miscompilations in the compiler frontend (#25004, #25960, #26256)
* Improvements to efficiency of the runtime linker (#26009)
* Fixes for several bugs in bytecode generation and the bytecode interpreter (#23210, #25975, #25750)
* Fixes for bugs in the handling of WHITEHOLEs in the RTS (#26204, #26205)
* Fix incorrect code generation for SSE vector operations (#25859)
* Fix a use-after-free in the Windows runtime linker (#26613)
* Support for synchronous JSFFI exports for the wasm backend
* And many more!

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][].

GHC development is sponsored by:

  * [Juspay](https://juspay.com/)
  * [QBayLogic](https://qbaylogic.com/)
  * [Channable](https://www.channable.com/)
  * [Haskell Foundation](https://haskell.foundation/)
  * [Serokell](https://serokell.io/)
  * [Well-Typed](https://well-typed.com/)
  * [Tweag](https://www.tweag.io/)
  * [Dotcom-Monitor](https://www.dotcom-monitor.com/)
  * [LoadView](https://www.loadview-testing.com/)
  * [Web Hosting Buddy](https://webhostingbuddy.com/)
  * [Find My Electric](https://www.findmyelectric.com/)
  * [Standard Chartered](https://www.sc.com)
  * [UpCloud](https://upcloud.com)
  * [Mercury](https://mercury.com)

We would like to thank these sponsors 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://downloads.haskell.org/~ghc/9.12.3/docs/users_guide/9.12.3-notes.html
[status]: https://gitlab.haskell.org/ghc/ghc/-/wikis/GHC-status
[downloads.haskell.org]: https://downloads.haskell.org/ghc/9.12.3
[ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new
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