docs: 9.6.2 release notes

docs/users_guide/9.6.2-notes.rst

+.. _release-9-6-2:
+
+Version 9.6.2
+==============
+
+The significant changes to the various parts of the compiler are listed below.
+See the `migration guide
+<https://gitlab.haskell.org/ghc/ghc/-/wikis/migration/9.6>`_ on the GHC Wiki
+for specific guidance on migrating programs to this release.
+
+The :ghc-flag:`LLVM backend <-fllvm>` of this release is to be used with LLVM
+11, 12, 13, 14 or 15.
+
+- A :ghc-ticket:`simplifier bug <22761>` resulting in compiler crashes in some
+  situations involving rules has been fixed.
+
+- Several issues affecting the bytecode interpreter's handling of optimised
+  programs have been fixed (:ghc-ticket:`23068`, :ghc-ticket:`22958`)
+
+- A specialisation bug resulting looping of some programs involving
+  non-trivial chains of instances (namely, requiring
+  :extension:`UndecidableInstances`) has been fixed (:ghc-ticket:`22549`)
+
+- A bug resulting in crashes of programs using the new ``listThreads#`` primop
+  has been fixed (:ghc-ticket:`23071`).
+
+- A compiler crash triggered by certain uses of quantified constraints has been
+  fixed (:ghc-ticket:`23171`)
+
+- Various bugs in the Javascript backend have been fixed (:ghc-ticket:`23399`,
+  :ghc-ticket:`23360`, :ghc-ticket:`23346`)
+
+- The non-moving garbage collector's treatment of weak pointers has been
+  revamped which should allow more reliable finalization of ``Weak#``
+  closures (:ghc-ticket:`22327`)
+
+- The non-moving garbage collector now bounds the amount of marking it will
+  do during the post-marking stop-the-world phase, greatly reducing tail
+  latencies in some programs (:ghc-ticket:`22929`)
+
+- A missing write barrier in the non-moving collector's handling of selector
+  thunks has been fixed (:ghc-ticket:`22930`).
+
+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
+    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
+

docs/users_guide/release-notes.rst

@@ -5,3 +5,4 @@ Release notes
    :maxdepth: 1
 
    9.6.1-notes
+   9.6.2-notes