[ANNOUNCE] Glasgow Haskell Compiler 8.10.2 released

Ben Gamari ben at well-typed.com
Sat Aug 8 19:45:08 UTC 2020

Hello all,

The GHC team is happy to announce the release 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

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 [1].


- Ben

[1] https://gitlab.haskell.org/ghc/ghc/issues/17418
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