GHC 8.10.2 released

bgamari - 2020-08-08

The GHC team is happy to announce the availability of GHC 8.10.2. Source and binary distributions are available at the usual place.

GHC 8.10.2 fixes a number of issues in present in GHC 8.10.1 including:

  • Fixes a bug in process creation on Windows (#17926).

  • Fixes a code generation bug resulting in incorrect code generation for foreign calls with complex arguments (#18527)

  • Fixes a bug causing object merging to fail when the lld linker is in use (#17962)

  • Introduces a workaround for a Linux kernel bug in the implementation of the timerfd mechanism (#18033).

  • Fixes a few specialiser regressions (#17810, #18120) as well introduces a variety of miscellaneous specialiser improvements (#16473, #17930, #17966)

  • Fixes a potential loss of sharing due to left operator sections (#18151).

  • Fix bootstrapping of GHC with the LLVM backend on x86-64 (#17920).

  • A few important correctness fixes for the low-latency garbage collector. Users of --nonmoving-gc are strongly encouraged to upgrade promptly.

Note that at the moment we still require that macOS Catalina users exempt the binary distribution from the notarization requirement by running xattr -cr . on the unpacked tree before running make install. This situation will hopefully be improved for GHC 9.0.1 with the resolution of #17418.