.. _release-8-4-2: Release notes for version 8.4.2 =============================== TODO Highlights ---------- The highlights, since the 8.4.1 release, are: - TODO Full details ------------ Language ~~~~~~~~ - Fix a regression in which derived ``Read`` instances for record data types with field names ending with ``#`` (by way of :ghc-flag:`-XMagicHash`) would no longer parse valid output. Compiler ~~~~~~~~ Runtime system ~~~~~~~~~~~~~~ Template Haskell ~~~~~~~~~~~~~~~~ ``ghc`` library ~~~~~~~~~~~~~~~ ``base`` library ~~~~~~~~~~~~~~~~ - Add the ``readFieldHash`` function to ``GHC.Read`` which behaves like ``readField``, but for a field that ends with a ``#`` symbol. ``integer-gmp`` library ~~~~~~~~~~~~~~~~~~~~~~~ - Define ``powModSecInteger``, a "secure" version of ``powModInteger`` using the ``mpz_powm_sec`` function. Build system ~~~~~~~~~~~~ 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