diff options
Diffstat (limited to 'docs/users_guide/8.10.7-notes.rst')
| -rw-r--r-- | docs/users_guide/8.10.7-notes.rst | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/docs/users_guide/8.10.7-notes.rst b/docs/users_guide/8.10.7-notes.rst new file mode 100644 index 0000000000..ddc5b60b4d --- /dev/null +++ b/docs/users_guide/8.10.7-notes.rst @@ -0,0 +1,88 @@ +.. _release-8-10-7: +Release notes for version 8.10.7 +================================ + +The significant changes to the various parts of the compiler are listed in the +following sections. + +The :ghc-flag:`LLVM backend <-fllvm>` of this release is to be used with LLVM versions 9 +through 12. + +Portability fixes +----------------- + +- Actually fix a linking portability issue on macOS that resulted in undefined + symbol errors for ``___darwin_check_fd_set_overflow`` (:ghc-ticket:`19950`), + working around a bug in certain versions of XCode 11. + We claimed to have fixed this in GHC 8.10.6, but alas this wasn't the case. The + fix was originally tested on the master branch, which uses a different build + configuration from the 8.10 branch. We have now tested the fix on the GHC 8.10 + branch and finally squashed the bug. + +Known issues +------------ + +- A long-standing bug (:ghc-ticket:`16893`) which can cause some applications + of ``unsafeCoerce`` to segmentation fault is only partially fixed in this + release. This release only avoids this issue in the uses of ``unsafeCoerce`` + in ``Data.Typeable.Internal``, which was the proximate cause of + :ghc-ticket:`16893`. + + However, it is possible that this bug could manifest in user-code using + ``unsafeCoerce`` to perform dynamic type checks. See the :ghc-ticket:`ticket + <16893>` for details. + + We expect that this issue will be fixed in the next major release of GHC. + +- A long-standing bug (:ghc-ticket:`17760`) where some uses of the ``touch#`` + primop can be dropped by the simplifier is present in this release. This bug + will be fixed in GHC 9.0.1. In the meantime, see the :ghc-ticket:`ticket + <17760>` for mitigations. + + +Included libraries +------------------ + +The package database provided with this distribution also contains a number of +packages other than GHC itself. See the changelogs provided with these packages +for further change information. + +.. ghc-package-list:: + + libraries/array/array.cabal: Dependency of ``ghc`` library + libraries/base/base.cabal: Core library + libraries/binary/binary.cabal: Dependency of ``ghc`` library + libraries/bytestring/bytestring.cabal: Dependency of ``ghc`` library + libraries/Cabal/Cabal/Cabal.cabal: Dependency of ``ghc-pkg`` utility + libraries/containers/containers/containers.cabal: Dependency of ``ghc`` library + libraries/deepseq/deepseq.cabal: Dependency of ``ghc`` library + libraries/directory/directory.cabal: Dependency of ``ghc`` library + libraries/exceptions/exceptions.cabal: Dependency of ``haskeline`` library + libraries/filepath/filepath.cabal: Dependency of ``ghc`` library + compiler/ghc.cabal: The compiler itself + libraries/ghci/ghci.cabal: The REPL interface + libraries/ghc-boot/ghc-boot.cabal: Internal compiler library + libraries/ghc-boot-th/ghc-boot-th.cabal: Internal compiler library + libraries/ghc-compact/ghc-compact.cabal: Core library + libraries/ghc-heap/ghc-heap.cabal: GHC heap-walking library + libraries/ghc-prim/ghc-prim.cabal: Core library + libraries/haskeline/haskeline.cabal: Dependency of ``ghci`` executable + libraries/hpc/hpc.cabal: Dependency of ``hpc`` executable + libraries/integer-gmp/integer-gmp.cabal: Core library + libraries/libiserv/libiserv.cabal: Internal compiler library + libraries/mtl/mtl.cabal: Dependency of ``Cabal`` library + libraries/parsec/parsec.cabal: Dependency of ``Cabal`` library + libraries/pretty/pretty.cabal: Dependency of ``ghc`` library + libraries/process/process.cabal: Dependency of ``ghc`` library + libraries/stm/stm.cabal: Dependency of ``haskeline`` library + libraries/template-haskell/template-haskell.cabal: Core library + libraries/terminfo/terminfo.cabal: Dependency of ``haskeline`` library + libraries/text/text.cabal: Dependency of ``Cabal`` library + libraries/time/time.cabal: Dependency of ``ghc`` library + libraries/transformers/transformers.cabal: Dependency of ``ghc`` library + libraries/unix/unix.cabal: Dependency of ``ghc`` library + libraries/Win32/Win32.cabal: Dependency of ``ghc`` library + libraries/xhtml/xhtml.cabal: Dependency of ``haddock`` executable + + + |