v1.6.0.20171202

This is the first release candidate for v1.6.1.

Changes since the last v1.6 pre-release (v1.6.0.20171022):

Behavior changes:

• The package-indices setting with Hackage no longer works with the
  00-index.tar.gz tarball, but must use the 01-index.tar.gz file
  to allow revised packages to be found.
• The GHCRTS environment variable will no longer be passed through to
  every program stack runs. Instead, it will only be passed through
  commands like exec, runghc, script, ghci, etc.
  See #3444.
• ghc-options: for specific packages will now come after the options
  specified for all packages / particular sets of packages. See
  #3573.
• The pvp-bounds feature is no longer fully functional, due to some
  issues with the Cabal library's printer. See
  #3550.

Other enhancements:

• Plan construction will detect if you add an executable-only package
  as a library dependency, resulting in much clearer error
  messages. See:
  #2195.
• Addition of --ghc-options to stack script to pass options directly
  to GHC. See:
  #3454
• Add hpack package.yaml to build Stack itself
• Add ignore-revision-mismatch setting. See:
  #3520.
• Log when each individual test suite finishes. See:
  #3552.
• Avoid spurious rebuilds when using --file-watch by not watching files for
  executable, test and benchmark components that aren't a target. See:
  #3483.
• Stack will now try to detect the width of the running terminal
  (only on POSIX for the moment) and use that to better display
  output messages. Work is ongoing, so some messages will not
  be optimal yet. The terminal width can be overriden with the
  new --terminal-width command-line option (this works even on
  non-POSIX).
• Passing non local packages as targets to stack ghci will now
  cause them to be used as -package args along with package
  hiding.
• Detect when user changed .cabal file instead of package.yaml. This
  was implemented upstream in hpack. See
  #3383.
• Automatically run autoreconf -i as necessary when a configure
  script is missing. See
  #3534
• GHC bindists can now be identified by their SHA256 checksum in addition to
  their SHA1 checksum, allowing for more security in download.
• For filesystem setup-info paths, it's no longer assumed that the
  directory is writable, instead a temp dir is used. See
  #3188.

Bug fixes:

• When --pvp-bounds is enabled for sdist or upload, internal
  dependencies could cause errors when uploaded to hackage. This is
  fixed, see #3290
• Fixes a bug where nonexistent hackage versions would cause stack to
  suggest the same package name, without giving version info. See
  #3562
• Fixes a bug that has existed since 1.5.0, where
  stack setup --upgrade-cabal would say that Cabal is already the latest
  version, when it wasn't.
• Ensure that an extra-dep from a local directory is not treated as
  a $locals for GHC options purposes. See
  #3574.
• Building all executables only happens once instead of every
  time. See
  #3229 for
  more info.