v2.9.0.1 (release candidate)

Changes since v2.7.5:

Behavior changes:

• stack build --coverage will generate a unified coverage report, even if
  there is only one *.tix file, in case a package has tested the library of
  another package that has not tested its own library. See
  #5713
• stack --verbose no longer includes the lengthy raw snapshot layer (rsl) in
  the debug output by default. The new stack --[no-]rsl-in-log flag enables or
  disables the inclusion of the rsl in the debug output.

Other enhancements:

• Bump to Hpack 0.35.0.
• On Windows, the installer now sets DisplayVersion in the registry, enabling
  tools like winget to properly read the version number.
• Adds flag --script-no-run-compile (disabled by default) that uses the
  --no-run option with stack script (and forces the --compile option).
  This enables a command like stack --script-no-run-compile Script.hs to
  behave like stack script <arguments> --no-run --compile -- Script.hs but
  without having to list all the <arguments> in the Stack interpreter options
  comment in Script.hs on the command line. That may help test that scripts
  compile in CI (continuous integration). See
  #5755
• Fuller help is provided at the command line if a subcommand is missing (for
  example, stack ls now yields the equivalent of stack ls --help). See
  #809
• Add build option --cabal-verbosity=VERBOSITY to specify the Cabal verbosity
  level (the option accepts Cabal's numerical and extended syntax).
  See #1369
• Add the possibility of a sh script to customise fully GHC installation. See
  #5585
• tools subcommand added to stack ls, to list stack's installed tools.
• stack uninstall shows how to uninstall Stack.
• --ghc-variant accepts int-native as a variant.

Bug fixes:

• Fix stack clean --full, so that the files to be deleted are not in use. See
  #5714
• Fix an inconsistency in the pretty formatting of the output of
  stack build --coverage
• Fix repeated warning about missing parameters when using stack new
• Include pantry-0.5.6: Remove operational and mirror keys from bootstrap key
  set #53
• Pass any CPP options specified via cpp-options: in the Cabal file to GHCi
  using GHC's -optP flag. See
  #5608
• On Unix-like operating systems, respect the with-gcc option when installing
  GHC. See #5609
• Fixed logic in get_isa() in get-stack.sh to exclude systems that don't
  have x86 in their uname -m output. See
  5792.
• Fixed output of stack ls snapshots local on Windows, to behave like that on
  Unix-like operating systems.
• Fix non-deterministic test failures when executing a test suite for a
  multi-project repository with parallelism enabled. See
  #5024