.. _release-8-4-3: Release notes for version 8.4.3 =============================== Highlights ---------- This is a bug-fix release resolving several regressions introduced in 8.4.1. The highlights, since the 8.4.2 release, are: - A bug (:ghc-ticket:`15068`) causing GHC to produce assembler that would be rejected by some versions of GNU Binutils, has been fixed. - ``GHC.Compact.compact`` now properly handles ``SmallArray``\ s (:ghc-ticket:`13857`) - A bug (:ghc-ticket:`15038`) resulting in memory corruption and crashes in some uses of unboxed sums has been fixed. - GHC now logs a message when an :ref:`environment file ` is loaded (:ghc-ticket:`15145`). Full details ------------ In addition to the highlights listed above, this release resolves a number of other issues, described below. Compiler ~~~~~~~~ No changes beyond those listed in Highlights. Runtime system ~~~~~~~~~~~~~~ - A bug causing aggressive potentially resulting in crashes when (:rts-flag:`nursery chunks <-n ⟨size⟩>`) are used with a changing capability count has been fixed. Template Haskell ~~~~~~~~~~~~~~~~ No changes. ``ghc`` library ~~~~~~~~~~~~~~~ No changes. ``base`` library ~~~~~~~~~~~~~~~~ - Version bumped to 4.11.1.0 to account for the addition of ``GHC.IO.FixIOException`` - Add the ``readFieldHash`` function to ``GHC.Read`` which behaves like ``readField``, but for a field that ends with a ``#`` symbol. ``integer-gmp`` library ~~~~~~~~~~~~~~~~~~~~~~~ No changes. Build system ~~~~~~~~~~~~ No changes. 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: Deppendency of ``ghc`` library libraries/Cabal/Cabal/Cabal.cabal: Dependency of ``ghc-pkg`` utility libraries/containers/containers.cabal: Dependency of ``ghc`` library libraries/deepseq/deepseq.cabal: Dependency of ``ghc`` library libraries/directory/directory.cabal: Dependency of ``ghc`` 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-compact/ghc-compact.cabal: Core 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/mtl/mtl.cabal: Dependency of ``Cabal`` library libraries/parsec/parsec.cabal: Dependency of ``Cabal`` library libraries/process/process.cabal: Dependency of ``ghc`` library libraries/template-haskell/template-haskell.cabal: Core 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