.. _release-9-16-1: Version 9.16.1 ============== The significant changes to the various parts of the compiler are listed in the following sections. See the `migration guide `_ on the GHC Wiki for specific guidance on migrating programs to this release. Language ~~~~~~~~ Compiler ~~~~~~~~ - Code coverage's (:ghc-flag:`-fhpc`) treatment of record fields now extends beyond record fields accessed via :extension:`RecordWildCards` and :extension:`NamedFieldPuns`, and also handles access to nested record fields. That is, in a pattern such as ``Foo{bar = Bar{baz = b}}`` both ``bar`` and ``baz`` will now be marked as covered if ``b`` is evaluated. Note that this currently only works when record fields (or values contained within them) are bound to variables. The very similar pattern ``Foo{bar = Bar{baz = 42}}`` will will not yet mark ``bar`` or ``baz`` as covered. GHCi ~~~~ Runtime system ~~~~~~~~~~~~~~ Cmm ~~~ ``base`` library ~~~~~~~~~~~~~~~~ ``ghc-prim`` library ~~~~~~~~~~~~~~~~~~~~ ``ghc`` library ~~~~~~~~~~~~~~~ ``ghc-heap`` library ~~~~~~~~~~~~~~~~~~~~ ``ghc-experimental`` library ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ``template-haskell`` library ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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/Cabal/Cabal-syntax/Cabal-syntax.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 ``ghc`` and ``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 utils/haddock/haddock-api/haddock-api.cabal: Dependency of ``haddock`` executable utils/haddock/haddock-library/haddock-library.cabal: Dependency of ``haddock`` executable 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/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 libraries/os-string/os-string.cabal: Dependency of ``filepath`` library libraries/file-io/file-io.cabal: Dependency of ``directory`` library