GHC 8.10.6 is now available

Zubin Duggal - 2021-08-14

The GHC team is very pleased to announce the availability of GHC 8.10.6. Source and binary distributions are available at the usual place.

This is a bugfix release, fixing many issues present in GHC 8.10.5, including:

  • A fix for segmentation faults in GHCi on aarch64-darwin due to an incorrect foreign import in haskeline. See this blog post by Ben Gamari for more details on how your library could be affected.

  • A fix for a critical bug affecting Haskell Language Server (HLS) among other applications caused by missing RTS symbols required for statically linked builds of the GHC library (#19763).

  • No longer emitting spurious warnings for LLVM versions (LLVM 9-12) that were actually supported (#19973, #19829, #19959).

  • Numerous bug fixes for the new LLVM based aarch64-darwin backend (#20132).

  • Fixes and stability improvements for the non-moving GC (#19715).

  • Many other bug fixes for the RTS (#18033, #20132, #20093, #19421).

  • Many packaging related fixes, including versioned ghc-pkg executables (#20087), and actually distributing GHC versions linked against the integer-simple big integer backend (#18967, #19953) on both Windows and Alpine Linux. Previous releases were still linked against the GMP library due to a misconfiguration of the builders.

  • A significant refactoring of process fixing numerous bugs mostly on Apple platforms (#19994, process refactoring).

  • A FreeBSD release after fixing issues that caused GHC 8.10.5 to be unable to build (#19958, #19948).

  • Bug fixes for the linker on Darwin platforms (#20004, #19968, #19950).

A complete list of bug fixes and improvements can be found in the release notes.

As always, feel free to report any issues you encounter via