GHC 9.2.5 is now available

Zubin Duggal - 2022-11-07

The GHC developers are happy to announce the availability of GHC 9.2.5. Binary distributions, source distributions, and documentation are available at

This release is primarily a bugfix release addressing a few issues found in 9.2.4. These include:

  • Code generation issues in the AArch64 native code generator backend resulting in incorrect runtime results in some circumstances (#22282, #21964)
  • Fixes for a number of issues with the simplifier leading to core lint errors and suboptimal performance (#21694, #21755, #22114)
  • A long-standing interface-file determinism issue where full paths would leak into the interface file (#22162)
  • A runtime system bug where creating empty mutable arrays resulted in a crash (#21962)
  • … and a few more. See the release notes for a full accounting.

As some of the fixed issues do affect correctness users are encouraged to upgrade promptly.

We would like to thank Microsoft Azure, GitHub, IOG, the Zw3rk stake pool, Well-Typed, Tweag I/O, Serokell, Equinix, SimSpace, 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.

Happy compiling,

  • Zubin