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diff --git a/docs/users_guide/9.2.5-notes.rst b/docs/users_guide/9.2.5-notes.rst new file mode 100644 index 0000000000..fca1f59d17 --- /dev/null +++ b/docs/users_guide/9.2.5-notes.rst @@ -0,0 +1,84 @@ +.. _release-9-2-5: + +Version 9.2.5 +============== + +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 +9, 10, 11, or 12. + +Compiler +-------- + +- Fix a number of issues with the simplifier leading to core lint errors and suboptimal + performance (:ghc-ticket:`21694`, :ghc-ticket:`21755`, :ghc-ticket:`22114`). + +- Fix a sign extension bug resulting in incorrent runtime results on the native aarch64 backend (:ghc-ticket:`22282`). + +- Improve determinism by not inclusing build directories in interface files (:ghc-ticket:`22162`). + +- Fix a code generation panic when using SIMD types with unboxed sums (:ghc-ticket:`22187`). + +Runtime system +-------------- + +- Fix a bug where attempting to clear the card table of a zero-length + array resulted in an integer underflow (:ghc-ticket:`21962`). + +Core libraries +-------------- + +- Bump ``base`` to 4.16.3.0. + +- Bump ``process`` to 1.6.16.0 + +- base: Fix races in the IOManager to do with the ``setNumCapabilities`` and ``closeFdWith`` functions (:ghc-ticket:`21651`) + + +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 ``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 + 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 + + |