Changelog

Unreleased changes

Release notes:

Major changes:

Behavior changes:

Other enhancements:

Defer loading up of files for local packages. This allows us to get plan construction errors much faster, and avoid some unnecessary work when only building a subset of packages. This is especially useful for the curator use case.

Bug fixes:

Handle a change in GHC's hi-dump format around addDependentFile, which now includes a hash. See yesodweb/yesod#1551

v1.9.0 (release candidate)

Release notes:

We will be deleting the Ubuntu, Debian, CentOS, Fedora, and Arch package repos from download.fpcomplete.com soon. These have been deprecated for over a year and have not received new releases, but were left in place for compatibility with older scripts.

Major changes:

GHCJS support is being downgraded to 'experimental'. At time of writing the upcoming release is 1.8. A warning notifying the user of the experimental status of GHCJS will be incorporated into 1.8.

Behavior changes:

ghc-options from stack.yaml are now appended to ghc-options from config.yaml, whereas before they would be replaced.
stack build will now announce when sublibraries of a package are being build, in the same way executables, tests, benchmarks and libraries are announced
stack sdist will now announce the destination of the generated tarball, regardless of whether or not it passed the sanity checks
The --upgrade-cabal option to stack setup has been deprecated. This feature no longer works with GHC 8.2 and later. Furthermore, the reason for this flag originally being implemented was drastically lessened once Stack started using the snapshot's Cabal library for custom setups. See: #4070.
With the new namespaced template feature, stack templates is no longer able to meaningfully display a list of all templates available. Instead, the command will download and display a help file with more information on how to discover templates. See: #4039
Build tools are now handled in a similar way to cabal-install. In particular, for legacy build-tools fields, we use a hard-coded list of build tools in place of looking up build tool packages in a tool map. This both brings Stack's behavior closer into line with cabal-install, avoids some bugs, and opens up some possible optimizations/laziness. See: #4125.
Mustache templating is not applied to large files (over 50kb) to avoid performance degredation. See: #4133.
stack upload signs the package by default, as documented. --no-signature turns the signing off. #3739
In case there is a network connectivity issue while trying to download a template, stack will check whether that template had been downloaded before. In that case, the cached version will be used. See #3850.

Other enhancements:

On Windows before Windows 10, --color=never is the default on terminals that can support ANSI color codes in output only by emulation
On Windows, recognise a 'mintty' (false) terminal as a terminal, by default
stack build issues a warning when base is explicitly listed in extra-deps of stack.yaml
stack build suggests trying another GHC version should the build plan end up requiring unattainable base version.
A new sub command run has been introduced to build and run a specified executable similar to cabal run. If no executable is provided as the first argument, it defaults to the first available executable in the project.
stack build missing dependency suggestions (on failure to construct a valid build plan because of missing deps) are now printed with their latest cabal file revision hash. See #4068.
Added new --tar-dir option to stack sdist, that allows to copy the resulting tarball to the specified directory.
Introduced the --interleaved-output command line option and build.interleaved-output config value which causes multiple concurrent builds to dump to stderr at the same time with a packagename> prefix. See #3225.
The default retry strategy has changed to exponential backoff. This should help with #3510.
#4039 stack new now allows template names of the form username/foo to download from a user other than commercialstack on Github, and can be prefixed with the service github:, gitlab:, or bitbucket:.
Switch to githash to include some unmerged bugfixes in gitrev
#3685 Suggestion to add 'allow-newer': true now shows path to user config file where this flag should be put into
stack ghci now asks which main target to load before doing the build, rather than after
Bump to hpack 0.29.0
With GHC 8.4 and later, Haddock is given the --quickjump flag.
It is possible to specify the Hackage base URL to upload packages to, instead of the default of https://hackage.haskell.org/, by using hackage-base-url configuration option.
When using Nix, if a specific minor version of GHC is not requested, the latest minor version in the given major branch will be used automatically.

Bug fixes:

stack ghci now does not invalidate .o files on repeated runs, meaning any modules compiled with -fobject-code will be cached between ghci runs. See #4038.
~/.stack/config.yaml and stack.yaml terminating by newline
The previous released caused a regression where some stderr from the ghc-pkg command showed up in the terminal. This output is now silenced.
A regression in recompilation checking introduced in v1.7.1 has been fixed. See #4001
stack ghci on a package with internal libraries was erroneously looking for a wrong package corresponding to the internal library and failing to load any module. This has been fixed now and changes to the code in the library and the sublibrary are properly tracked. See #3926.
For packages with internal libraries not depended upon, stack build used to fail the build process since the internal library was not built but it was tried to be registered. This is now fixed by always building internal libraries. See #3996.
--no-nix was not respected under NixOS
Fix a regression which might use a lot of RAM. See #4027.
Order of commandline arguments does not matter anymore. See #3959
When prompting users about saving their Hackage credentials on upload, flush to stdout before waiting for the response so the prompt actually displays. Also fixes a similar issue with ghci target selection prompt.
If cabal is not on PATH, running stack solver now prompts the user to run stack install cabal-install
stack build now succeeds in building packages which contain sublibraries which are dependencies of executables, tests or benchmarks but not of the main library. See #3787.
Sublibraries are now properly considered for coverage reports when the test suite depends on the internal library. Before, stack was erroring when trying to generate the coverage report, see #4105.
Sublibraries are now added to the precompiled cache and recovered from there when the snapshot gets updated. Previously, updating the snapshot when there was a package with a sublibrary in the snapshot resulted in broken builds. This is now fixed, see #4071.
[#4114] Stack pretty prints error messages with proper error logging level instead of warning now. This also fixes self-executing scripts not piping plan construction errors from runhaskell to terminal (issue #3942).
Fix invalid "While building Setup.hs" when Cabal calls fail. See: #3934
stack upload signs the package by default, as documented. --no-signature turns the signing off. #3739

v1.7.1

Release notes:

aarch64 (64-bit ARM) bindists are now available for the first time.
Statically linked Linux bindists are no longer available, due to difficulty with GHC 8.2.2 on Alpine Linux.
32-bit Linux GMP4 bindists for CentOS 6 are no longer available, since GHC 8.2.2 is no longer being built for that platform.

Major changes:

Upgrade from Cabal 2.0 to Cabal 2.2

Behavior changes:

stack setup no longer uses different GHC configure options on Linux distributions that use GCC with PIE enabled by default. GHC detects this itself since ghc-8.0.2, and Stack's attempted workaround for older versions caused more problems than it solved.
stack new no longer initializes a project if the project template contains a stack.yaml file.

Other enhancements:

A new sub command ls has been introduced to stack to view local and remote snapshots present in the system. Use stack ls snapshots --help to get more details about it.
list-dependencies has been deprecated. The functionality has to accessed through the new ls dependencies interface. See #3669 for details.
Specify User-Agent HTTP request header on every HTTP request. See #3628 for details.
stack setup looks for GHC bindists and installations by any OS key that is compatible (rather than only checking a single one). This is relevant on Linux where different distributions may have different combinations of libtinfo 5/6, ncurses 5/6, and gmp 4/5, and will allow simpifying the setup-info metadata YAML for future GHC releases.
The build progress bar reports names of packages currently building.
stack setup --verbose causes verbose output of GHC configure process. See #3716
Improve the error message when an extra-dep from a path or git reference can't be found See #3808
Nix integration is now disabled on windows even if explicitly enabled, since it isn't supported. See #3600
stack build now supports a new flag --keep-tmp-files to retain intermediate files and directories for the purpose of debugging. It is best used with ghc's equivalent flag, i.e. stack build --keep-tmp-files --ghc-options=-keep-tmp-files. See #3857
Improved error messages for snapshot parse exceptions
stack unpack now supports a --to /target/directory option to specify where to unpack the package into
stack hoogle now supports a new flag --server that launches local Hoogle server on port 8080. See #2310

Bug fixes:

The script interpreter's implicit file arguments are now passed before other arguments. See #3658. In particular, this makes it possible to pass -- +RTS ... -RTS to specify RTS arguments used when running the script.
Don't ignore the template year parameter in config files, and clarify the surrounding documentation. See #2275.
Benchmarks used to be run concurrently with other benchmarks and build steps. This is non-ideal because CPU usage of other processes may interfere with benchmarks. It also prevented benchmark output from being displayed by default. This is now fixed. See #3663.
stack ghci now allows loading multiple packages with the same module name, as long as they have the same filepath. See #3776.
stack ghci no longer always adds a dependency on base. It is now only added when there are no local targets. This allows it to be to load code that uses replacements for base. See #3589
stack ghci now uses correct paths for autogen files with #3791
When a package contained sublibraries, stack was always recompiling the package. This has been fixed now, no recompilation is being done because of sublibraries. See #3899.
The get-stack.sh install script now matches manual instructions when it comes to Debian/Fedora/CentOS install dependencies.
Compile Cabal-simple with gmp when using Nix. See #2944
stack ghci now replaces the stack process with ghci. This improves signal handling behavior. In particular, handling of Ctrl-C. To make this possible, the generated files are now left behind after exit. The paths are based on hashing file contents, and it's stored in the system temporary directory, so this shouldn't result in too much garbage. See #3821.

v1.6.5

Bug fixes:

Some unnecessary rebuilds when no files were changed are now avoided, by having a separate build cache for each component of a package. See #3732.
Correct the behavior of promoting a package from snapshot to local package. This would get triggered when version bounds conflicted in a snapshot, which could be triggered via Hackage revisions for old packages. This also should allow custom snapshots to define conflicting versions of packages without issue. See Stackage issue #3185.
When promoting packages from snapshot to local, we were occassionally discarding the actual package location content and instead defaulting to pulling the package from the index. We now correctly retain this information. Note that if you were affected by this bug, you will likely need to delete the binary build cache associated with the relevant custom snapshot. See #3714.
--no-rerun-tests has been fixed. Previously, after running a test we were forgetting to record the result, which meant that all tests always ran even if they had already passed before. See #3770.
Includes a patched version of hackage-security which fixes both some issues around asynchronous exception handling, and moves from directory locking to file locking, making the update mechanism resilient against SIGKILL and machine failure. See hackage-security #187 and #3073.

v1.6.3.1

Hackage-only release with no user facing changes (updated to build with newer version of hpack dependency).

v1.6.3

Enhancements:

In addition to supporting .tar.gz and .zip files as remote archives, plain .tar files are now accepted too. This will additionally help with cases where HTTP servers mistakenly set the transfer encoding to gzip. See #3647.
Links to docs.haskellstack.org ignore Stack version patchlevel.
Downloading Docker-compatible stack binary ignores Stack version patchlevel.

Bug fixes:

For versions of Cabal before 1.24, ensure that the dependencies of non-buildable components are part of the build plan to work around an old Cabal bug. See #3631.
Run the Cabal file checking in the sdist command more reliably by allowing the Cabal library to flatten the GenericPackageDescription itself.

v1.6.1.1

Hackage-only release with no user facing changes (updated to build with newer dependency versions).

v1.6.1

Major changes:

Complete overhaul of how snapshots are defined, the packages and extra-deps fields, and a number of related items. For full details, please see the writeup on these changes. PR #3249, see the PR description for a number of related issues.
Upgraded to version 2.0 of the Cabal library.

Behavior changes:

The --install-ghc flag is now on by default. For example, if you run stack build in a directory requiring a GHC that you do not currently have, Stack will automatically download and install that GHC. You can explicitly set install-ghc: false or pass the flag --no-install-ghc to regain the previous behavior.
stack ghci no longer loads modules grouped by package. This is always an improvement for plain ghci - it makes loading faster and less noisy. For intero, this has the side-effect that it will no longer load multiple packages that depend on TH loading relative paths. TH relative paths will still work when loading a single package into intero. See #3309
Setting GHC options for a package via ghc-options: in your stack.yaml will promote it to a local package, providing for more consistency with flags and better reproducibility. See: #849
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.
Options passed via --ghci-options are now passed to the end of the invocation of ghci, instead of the middle. This allows using +RTS without an accompanying -RTS.
When auto-detecting --ghc-build, tinfo6 is now preferred over standard if both versions of libtinfo are installed
Addition of stack build --copy-compiler-tool, to allow tools like intero to be installed globally for a particular compiler. #2643
Stack will ask before saving hackage credentials to file. This new prompt can be avoided by using the save-hackage-creds setting. Please see #2159.
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:

The with-hpack configuration option specifies an Hpack executable to use instead of the Hpack bundled with Stack. Please see #3179.
It's now possible to skip tests and benchmarks using --skip flag
GitSHA1 is now StaticSHA256 and is implemented using the StaticSize 64 ByteString for improved performance. See #3006
Dependencies via HTTP(S) archives have been generalized to allow local file path archives, as well as to support setting a cryptographic hash (SHA256) of the contents for better reproducibility.
Allow specifying --git-branch when upgrading
When running stack upgrade from a file which is different from the default executable path (e.g., on POSIX systems, ~/.local/bin/stack), it will now additionally copy the new executable over the currently running stack executable. If permission is denied (such as in /usr/local/bin/stack), the user will be prompted to try again using sudo. This is intended to assist with the user experience when the PATH environment variable has not been properly configured, see #3232.
stack setup for ghcjs will now install alex and happy if they are not present. See #3109.
Added stack ghci --only-main flag, to skip loading / importing all but main modules. See the ghci documentation page for further info.
Allow GHC's colored output to show through. GHC colors output starting with version 8.2.1, for older GHC this does nothing. Sometimes GHC's heuristics would work fine even before this change, for example in stack ghci, but this override's GHC's heuristics when they're broken by our collecting and processing GHC's output.
Extended the ghc-options field to support $locals, $targets, and $everything. See: #3329
Better error message for case that stack ghci file targets are combined with invalid package targets. See: #3342
For profiling now uses -fprof-auto -fprof-cafs instead of the deprecated -auto-all -caf-all. See: #3360
Better descriptions are now available for stack upgrade --help. See: #3070
When using Nix, nix-shell now depends always on gcc to prevent build errors when using the FFI. As ghc depends on gcc anyway, this doesn't increase the dependency footprint.
--cwd DIR can now be passed to stack exec in order to execute the program in a different directory. See: #3264
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 overridden 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:

stack hoogle correctly generates Hoogle databases. See: #3362
stack --docker-help is now clearer about --docker implying system-ghc: true, rather than both --docker and --no-docker.
stack haddock now includes package names for all modules in the Haddock index page. See: #2886
Fixed an issue where Stack wouldn't detect missing Docker images properly with newer Docker versions. #3171
Previously, cabal files with just test-suite could cause build to fail (#2862)
If an invalid snapshot file has been detected (usually due to mismatched hashes), Stack will delete the downloaded file and recommend either retrying or filing an issue upstream. See #3319.
Modified the flag parser within Stack to match the behavior of Cabal's flag parser, which allows multiple sequential dashes. See #3345
Now clears the hackage index cache if it is older than the downloaded index. Fixes potential issue if stack was interrupted when updating index. See #3033
The Stack install script now respects the -d option. See #3366.
stack script can now handle relative paths to source files. See #3372.
Fixes explanation of why a target is needed by the build plan, when the target is an extra dependency from the commandline. See #3378.
Previously, if you delete a yaml file from ~/.stack/build-plan, it would trust the etag and not re-download. Fixed in this version.
Invoking stack --docker in parallel now correctly locks the sqlite database. See #3400.
docs.haskellstack.org RTD documentation search is replaced by the mkdocs search. Please see #3376.
stack clean now works with nix. See #3468.
stack build --only-dependencies no longer builds local project packages that are depended on. See #3476.
Properly handle relative paths stored in the precompiled cache files. See #3431.
In some cases, Cabal does not realize that it needs to reconfigure, and must be told to do so automatically. This would manifest as a "shadowed dependency" error message. We now force a reconfigure whenever a dependency is built, even if the package ID remained the same. See #2781.
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.

1.5.1

Bug fixes:

Stack eagerly tries to parse all cabal files related to a snapshot. Starting with Stackage Nightly 2017-07-31, snapshots are using GHC 8.2.1, and the ghc.cabal file implicitly referenced uses the (not yet supported) Cabal 2.0 file format. Future releases of Stack will both be less eager about cabal file parsing and support Cabal 2.0. This patch simply bypasses the error for invalid parsing.

1.5.0

Behavior changes:

stack profile and stack trace now add their extra RTS arguments for benchmarks and tests to the beginning of the args, instead of the end. See #2399
Support for Git-based indices has been removed.

Other enhancements:

stack setup allow to control options passed to ghcjs-boot with --ghcjs-boot-options (one word at a time) and --[no-]ghcjs-boot-clean
stack setup now accepts a --install-cabal VERSION option which will install a specific version of the Cabal library globally.
Updates to store-0.4.1, which has improved performance and better error reporting for version tags. A side-effect of this is that all of stack's binary caches will be invalidated.
stack solver will now warn about unexpected cabal-install versions. See #3044
Upstream packages unpacked to a temp dir are now deleted as soon as possible to avoid running out of space in /tmp. See #3018
Add short synonyms for test-arguments and benchmark-arguments options.
Adds STACK_WORK environment variable, to specify work dir. See #3063
Can now use relative paths for extra-include-dirs and extra-lib-dirs. See #2830
Improved bash completion for many options, including --ghc-options, --flag, targets, and project executables for exec.
--haddock-arguments is actually used now when haddock is invoked during documentation generation.
--[no-]haddock-hyperlink-source flag added which allows toggling of sources being included in Haddock output. See #3099
stack ghci will now skip building all local targets, even if they have downstream deps, as long as it's registered in the DB.
The pvp-bounds feature now supports adding -revision to the end of each value, e.g. pvp-bounds: both-revision. This means that, when uploading to Hackage, Stack will first upload your tarball with an unmodified .cabal file, and then upload a cabal file revision with the PVP bounds added. This can be useful—especially combined with the Stackage no-revisions feature—as a method to ensure PVP compliance without having to proactively fix bounds issues for Stackage maintenance.
Expose a save-hackage-creds configuration option
On GHC <= 7.8, filters out spurious linker warnings on windows See #3127
Better error messages when creating or building packages which alias wired-in packages. See #3172.
MinGW bin folder now is searched for dynamic libraries. See #3126
When using Nix, nix-shell now depends always on git to prevent runtime errors while fetching metadata
The stack unpack command now accepts a form where an explicit Hackage revision hash is specified, e.g. stack unpack foo-1.2.3@gitsha1:deadbeef. Note that this should be considered experimental, Stack will likely move towards a different hash format in the future.
Binary "stack upgrade" will now warn if the installed executable is not on the PATH or shadowed by another entry.
Allow running tests on tarball created by sdist and upload #717.

Bug fixes:

Fixes case where stack build --profile might not cause executables / tests / benchmarks to be rebuilt. See #2984
stack ghci file.hs now loads the file even if it isn't part of your project.
stack clean --full now works when docker is enabled. See #2010
Fixes an issue where cyclic deps can cause benchmarks or tests to be run before they are built. See #2153
Fixes stack build --file-watch in cases where a directory is removed See #1838
Fixes stack dot and stack list-dependencies to use info from the package database for wired-in-packages (ghc, base, etc). See #3084
Fixes stack --docker build when user is part of libvirt/libvirtd groups on Ubuntu Yakkety (16.10). See #3092
Switching a package between extra-dep and local package now forces rebuild (previously it wouldn't if versions were the same). See #2147
stack upload no longer reveals your password when you type it on MinTTY-based Windows shells, such as Cygwin and MSYS2. See #3142
stack script's import parser will now properly parse files that have Windows-style line endings (CRLF)

1.4.0

Release notes:

Docker images: fpco/stack-full and fpco/stack-run are no longer being built for LTS 8.0 and above. fpco/stack-build images continue to be built with a simplified process. #624

Major changes:

A new command, script, has been added, intended to make the script interpreter workflow more reliable, easier to use, and more efficient. This command forces the user to provide a --resolver value, ignores all config files for more reproducible results, and optimizes the existing package check to make the common case of all packages already being present much faster. This mode does require that all packages be present in a snapshot, however. #2805

Behavior changes:

The default package metadata backend has been changed from Git to the 01-index.tar.gz file, from the hackage-security project. This is intended to address some download speed issues from Github for people in certain geographic regions. There is now full support for checking out specific cabal file revisions from downloaded tarballs as well. If you manually specify a package index with only a Git URL, Git will still be used. See #2780
When you provide the --resolver argument to the stack unpack command, any packages passed in by name only will be looked up in the given snapshot instead of taking the latest version. For example, stack --resolver lts-7.14 unpack mtl will get version 2.2.1 of mtl, regardless of the latest version available in the package indices. This will also force the same cabal file revision to be used as is specified in the snapshot.

Unpacking via a package identifier (e.g. stack --resolver lts-7.14 unpack mtl-2.2.1) will ignore any settings in the snapshot and take the most recent revision.

For backwards compatibility with tools relying on the presence of a 00-index.tar, Stack will copy the 01-index.tar file to 00-index.tar. Note, however, that these files are different; most importantly, 00-index contains only the newest revisions of cabal files, while 01-index contains all versions. You may still need to update your tooling.
Passing --(no-)nix-* options now no longer implies --nix, except for --nix-pure, so that the user preference whether or not to use Nix is honored even in the presence of options that change the Nix behavior.

Other enhancements:

Internal cleanup: configuration types are now based much more on lenses
stack build and related commands now allow the user to disable debug symbol stripping with new --no-strip, --no-library-stripping, and --no-executable-shipping flags, closing #877. Also turned error message for missing targets more readable (#2384)
stack haddock now shows index.html paths when documentation is already up to date. Resolved #781
Respects the custom-setup field introduced in Cabal 1.24. This supercedes any explicit-setup-deps settings in your stack.yaml and trusts the package's .cabal file to explicitly state all its dependencies.
If system package installation fails, get-stack.sh will fail as well. Also shows warning suggesting to run apt-get update or similar, depending on the OS. (#2898)
When stack ghci is run with a config with no packages (e.g. global project), it will now look for source files in the current work dir. (#2878)
Bump to hpack 0.17.0 to allow custom-setup and !include "..." in package.yaml.
The script interpreter will now output error logging. In particular, this means it will output info about plan construction errors. (#2879)
stack ghci now takes --flag and --ghc-options again (inadvertently removed in 1.3.0). (#2986)
stack exec now takes --rts-options which passes the given arguments inside of +RTS ... args .. -RTS to the executable. This works around stack itself consuming the RTS flags on Windows. (#2640)
Upgraded http-client-tls version, which now offers support for the socks5:// and socks5h:// values in the http_proxy and https_proxy environment variables.

Bug fixes:

Bump to hpack 0.16.0 to avoid character encoding issues when reading and writing on non-UTF8 systems.
stack ghci will no longer ignore hsSourceDirs that contain ... (#2895)
stack list-dependencies --license now works for wired-in-packages, like base. (#2871)
stack setup now correctly indicates when it uses system ghc (#2963)
Fix to stack config set, in 1.3.2 it always applied to the global project. (#2709)
Previously, cabal files without exe or lib would fail on the "copy" step. (#2862)
stack upgrade --git now works properly. Workaround for affected versions (>= 1.3.0) is to instead run stack upgrade --git --source-only. (#2977)
Added support for GHC 8's slightly different warning format for dumping warnings from logs.
Work around a bug in Cabal/GHC in which package IDs are not unique for different source code, leading to Stack not always rebuilding packages depending on local packages which have changed. (#2904)

1.3.2

Bug fixes:

stack config set can now be used without a compiler installed #2852.
get-stack.sh now installs correct binary on ARM for generic linux and raspbian, closing #2856.
Correct the testing of whether a package database exists by checking for the package.cache file itself instead of the containing directory.
Revert a change in the previous release which made it impossible to set local extra-dep packages as targets. This was overkill; we really only wanted to disable their test suites, which was already handled by a later patch. #2849
stack new always treats templates as being UTF-8 encoding, ignoring locale settings on a local machine. See Yesod mailing list discussion

1.3.0

Release notes:

For the next stack release after this one, we are planning changes to our Linux releases, including dropping our Ubuntu, Debian, CentOS, and Fedora package repositories and switching to statically linked binaries. See #2534. Note that upgrading without a package manager has gotten easier with new binary upgrade support in stack upgrade (see the Major Changes section below for more information). In addition, the get.haskellstack.org script no longer installs from Ubuntu, Debian, CentOS, or Fedora package repositories. Instead it places a generic binary in /usr/local/bin.

Major changes:

Stack will now always use its own GHC installation, even when a suitable GHC installation is available on the PATH. To get the old behaviour, use the --system-ghc flag or run stack config set system-ghc --global true. Docker- and Nix-enabled projects continue to use the GHC installations in their environment by default.

NB: Scripts that previously used stack in combination with a system GHC installation should now include a stack setup line or use the --install-ghc flag. #2221
stack ghci now defaults to skipping the build of target packages, because support has been added for invoking "initial build steps", which create autogen files and run preprocessors. The --no-build flag is now deprecated because it should no longer be necessary. See #1364
Stack is now capable of doing binary upgrades instead of always recompiling a new version from source. Running stack upgrade will now default to downloading a binary version of Stack from the most recent release, if one is available. See stack upgrade --help for more options. #1238

Behavior changes:

Passing --resolver X with a Stack command which forces creation of a global project config, will pass resolver X into the initial config. See #2579.
Switch the "Run from outside project" messages to debug-level, to avoid spamming users in the normal case of non-project usage
If a remote package is specified (such as a Git repo) without an explicit extra-dep setting, a warning is given to the user to provide one explicitly.

Other enhancements:

stack haddock now supports --haddock-internal. See #2229
Add support for system-ghc and install-ghc fields to stack config set command.
Add ghc-build option to override autodetected GHC build to use (e.g. gmp4, tinfo6, nopie) on Linux.
stack setup detects systems where gcc enables PIE by default (such as Ubuntu 16.10 and Hardened Gentoo) and adjusts the GHC configure options accordingly. #2542
Upload to Hackage with HTTP digest instead of HTTP basic.
Make stack list-dependencies understand all of the stack dot options too.
Add the ability for stack list-dependencies to list dependency licenses by passing the --license flag.
Dump logs that contain warnings for any local non-dependency packages #2545
Add the dump-logs config option and --dump-logs command line option to get full build output on the console. #426
Add the --open option to "stack hpc report" command, causing the report to be opened in the browser.
The stack config set command now accepts a --global flag for suitable fields which causes it to modify the global user configuration (~/.stack/config.yaml) instead of the project configuration. #2675
Information on the latest available snapshots is now downloaded from S3 instead of stackage.org, increasing reliability in case of stackage.org outages. #2653
stack dot and stack list-dependencies now take targets and flags. #1919
Deprecate stack setup --stack-setup-yaml for --setup-info-yaml based on discussion in #2647.
The --main-is flag for GHCI now implies the TARGET, fixing #1845.
stack ghci no longer takes all build options, as many weren't useful #2199
--no-time-in-log option, to make verbose logs more diffable #2727
--color option added to override auto-detection of ANSI support #2725
Missing extra-deps are now warned about, adding a degree of typo detection #1521
No longer warns about missing build-tools if they are on the PATH. #2235
Replace enclosed-exceptions with safe-exceptions. #2768
The install location for GHC and other programs can now be configured with the local-programs-path option in config.yaml. #1644
Added option to add nix dependencies as nix GC roots
Proper pid 1 (init) process for stack exec with Docker
Dump build logs if they contain warnings. #2545
Docker: redirect stdout of docker pull to stderr so that it will not interfere with output of other commands.
Nix & docker can be activated at the same time, in order to run stack in a nix-shell in a container, preferably from an image already containing the nix dependencies in its /nix/store
Stack/nix: Dependencies can be added as nix GC roots, so they are not removed when running nix-collect-garbage

Bug fixes:

Fixed a gnarly bug where programs and package tarballs sometimes have corrupted downloads. See #2657.
Add proper support for non-ASCII characters in file paths for the sdist command. See #2549
Never treat extra-dep local packages as targets. This ensures things like test suites are not run for these packages, and that build output is not hidden due to their presence.
Fix a resource leak in sinkProcessStderrStdout which could affect much of the codebase, in particular copying precompiled packages. #1979
Docker: ensure that interrupted extraction process does not cause corrupt file when downloading a Docker-compatible Stack executable #2568
Fixed running stack hpc report on package targets. #2664
Fix a long-standing performance regression where stack would parse the .dump-hi files of the library components of local packages twice. #2658
Fixed a regression in "stack ghci --no-load", where it would prompt for a main module to load. #2603
Build Setup.hs files with the threaded RTS, mirroring the behavior of cabal-install and enabling more complex build systems in those files.
Fixed a bug in passing along --ghc-options to ghcjs. They were being provided as --ghc-options to Cabal, when it needs to be --ghcjs-options. #2714
Launch Docker from the project root regardless of the working directory Stack is invoked from. This means paths relative to the project root (e.g. environment files) can be specified in stack.yaml's docker run-args.
stack setup --reinstall now behaves as expected. #2554

1.2.0

Release notes:

On many Un*x systems, Stack can now be installed with a simple one-liner:
```
  wget -qO- https://get.haskellstack.org/ | sh
```
The fix for #2175 entails that stack must perform a full clone of a large Git repo of Hackage meta-information. The total download size is about 200 MB. Please be aware of this when upgrading your stack installation.
If you use Mac OS X, you may want to delay upgrading to macOS Sierra as there are reports of GHC panics when building some packages (including Stack itself). See #2577
This version of Stack does not build on ARM or PowerPC systems (see store#37). Please stay with version 1.1.2 for now on those architectures. This will be rectified soon!
We are now releasing a statically linked Stack binary for 64-bit Linux. Please try it and let us know if you run into any trouble on your platform.
We are planning some changes to our Linux releases, including dropping our Ubuntu, Debian, CentOS, and Fedora package repositories and switching to statically linked binaries. We would value your feedback in #2534.

Major changes:

Add stack hoogle command. #55
Support for absolute file path in url field of setup-info or --ghc-bindist
Add support for rendering GHCi scripts targeting different GHCi like applications #2457

Behavior changes:

Remove stack ide start and stack ide load-targets commands. #2178
Support .buildinfo files in stack ghci. #2242
Support -ferror-spans syntax in GHC error messages.
Avoid unpacking ghc to /tmp #996
The Linux gmp4 GHC bindist is no longer considered a full-fledged GHC variant and can no longer be specified using the ghc-variant option, and instead is treated more like a slightly different platform.

Other enhancements:

Use the store package for binary serialization of most caches.
Only require minor version match for Docker stack exe. This way, we can make patch releases for version bounds and similar build issues without needing to upload new binaries for Docker.
Stack/Nix: Passes the right ghc derivation as an argument to the shell.nix when a custom shell.nix is used See #2243
Stack/Nix: Sets LD_LIBRARY_PATH so packages using C libs for Template Haskell can work (See e.g. this HaskellR issue)
Parse CLI arguments and configuration files into less permissive types, improving error messages for bad inputs. #2267
Add the ability to explicitly specify a gcc executable. #593
Nix: No longer uses LTS mirroring in nixpkgs. Gives to nix-shell a derivation like haskell.compiler.ghc801 See #2259
Perform some subprocesses during setup concurrently, slightly speeding up most commands. #2346
stack setup no longer unpacks to the system temp dir on posix systems. #996
stack setup detects libtinfo6 and ncurses6 and can download alternate GHC bindists #257 #2302.
stack setup detects Linux ARMv7 downloads appropriate GHC bindist #2103
Custom stack binaries list dependency versions in output for --version. See #2222 and #2450.
Use a pretty printer to output dependency resolution errors. #1912
Remove the --os flag #2227
Add 'netbase' and 'ca-certificates' as dependency for .deb packages. #2293.
Add stack ide targets command.
Enhance debug logging with subprocess timings.
Pretty-print YAML parse errors #2374
Clarify confusing stack setup output #2314
Delete Stack.Types multimodule to improve build times #2405
Remove spurious newlines in build logs #2418
Interpreter: Provide a way to hide implicit packages #1208
Check executability in exec lookup #2489

Bug fixes:

Fix cabal warning about use of a deprecated cabal flag #2350
Support most executable extensions on Windows #2225
Detect resolver change in stack solver #2252
Fix a bug in docker image creation where the wrong base image was selected #2376
Ignore special entries when unpacking tarballs #2361
Fixes src directory pollution of style.css and highlight.js with GHC 8's haddock #2429
Handle filepaths with spaces in stack ghci #2266
Apply ghc-options to snapshot packages #2289
stack sdist: Fix timestamp in tarball #2394
Allow global Stack arguments with a script #2316
Inconsistency between ToJSON and FromJSON instances of PackageLocation #2412
Perform Unicode normalization on filepaths #1810
Solver: always keep ghc wired-in as hard constraints #2453
Support OpenBSD's tar where possible, require GNU tar for xz support #2283
Fix using --coverage with Cabal-1.24 #2424
When marking exe installed, remove old version #2373
Stop truncating all-cabal-hashes git repo #2175
Handle non-ASCII filenames on Windows #2491
Avoid using multiple versions of a package in script interpreter by passing package-id to ghc/runghc #1957
Only pre-load compiler version when using nix integration #2459
Solver: parse cabal errors also on Windows #2502
Allow exec and ghci commands in interpreter mode. Scripts can now automatically open in the repl by using exec ghci instead of runghc in the shebang command. #2510
Now consider a package to be dirty when an extra-source-file is changed. See #2040

1.1.2

Release notes:

Official FreeBSD binaries are now available #1253.

Major changes:

Extensible custom snapshots implemented. These allow you to define snapshots which extend other snapshots. See #863. Local file custom snapshots can now be safely updated without changing their name. Remote custom snapshots should still be treated as immutable.

Behavior changes:

stack path --compiler was added in the last release, to yield a path to the compiler. Unfortunately, --compiler is a global option that is useful to use with stack path. The same functionality is now provided by stack path --compiler-exe. See #2123
For packages specified in terms of a git or hg repo, the hash used in the location has changed. This means that existing downloads from older stack versions won't be used. This is a side-effect of the fix to #2133
stack upgrade no longer pays attention to local stack.yaml files, just the global config and CLI options. #1392
stack ghci now uses :add instead of :load, making it potentially work better with user scripts. See #1888

Other enhancements:

Grab Cabal files via Git SHA to avoid regressions from Hackage revisions #2070
Custom snapshots now support ghc-options.
Package git repos are now re-used rather than re-cloned. See #1620
DESTDIR is filtered from environment when installing GHC. See #1460
stack haddock now supports --hadock-arguments. See #2144
Signing: warn if GPG_TTY is not set as per man gpg-agent

Bug fixes:

Now ignore project config when doing stack init or stack new. See #2110
Packages specified by git repo can now have submodules. See #2133
Fix of hackage index fetch retry. See re-opening of #1418
HPack now picks up changes to filesystem other than package.yaml. See #2051
"stack solver" no longer suggests --omit-packages. See #2031
Fixed an issue with building Cabal's Setup.hs. See #1356
Package dirtiness now pays attention to deleted files. See #1841
stack ghci now uses extra-lib-dirs and extra-include-dirs. See #1656
Relative paths outside of source dir added via qAddDependentFile are now checked for dirtiness. See #1982
Signing: always use --with-fingerprints

1.1.0

Release notes:

Added Ubuntu 16.04 LTS (xenial) Apt repo.
No longer uploading new versions to Fedora 21 repo.

Behavior changes:

Snapshot packages are no longer built with executable profiling. See #1179.
stack init now ignores symlinks when searching for cabal files. It also now ignores any directory that begins with . (as well as dist dirs) - before it would only ignore .git, .stack-work, and dist.
The stack executable is no longer built with -rtsopts. Before, when -rtsopts was enabled, stack would process +RTS options even when intended for some other program, such as when used with stack exec -- prog +RTS. See #2022.
The stack path --ghc-paths option is deprecated and renamed to --programs. --compiler is added, which points directly at the compiler used in the current project. --compiler-bin points to the compiler's bin dir.
For consistency with the $STACK_ROOT environment variable, the stack path --global-stack-root flag and the global-stack-root field in the output of stack path are being deprecated and replaced with the stack-root flag and output field. Additionally, the stack root can now be specified via the --stack-root command-line flag. See #1148.
stack sig GPG-related sub-commands were removed (folded into upload and sdist)
GPG signing of packages while uploading to Hackage is now the default. Use upload --no-signature if you would rather not contribute your package signature. If you don't yet have a GPG keyset, read this blog post on GPG keys. We can add a stack.yaml config setting to disable signing if some people desire it. We hope that people will sign. Later we will be adding GPG signature verification options.
stack build pkg-1.2.3 will now build even if the snapshot has a different package version - it is treated as an extra-dep. stack build local-pkg-1.2.3 is an error even if the version number matches the local package #2028.
Having a nix: section no longer implies enabling nix build. This allows the user to globally configure whether nix is used (unless the project overrides the default explicitly). See #1924.
Remove deprecated valid-wanted field.
Docker: mount home directory in container #1949.
Deprecate --local-bin-path instead --local-bin.
stack image: allow absolute source paths for add.

Other enhancements:

stack haddock --open [PACKAGE] opens the local haddocks in the browser.
Fix too much rebuilding when enabling/disabling profiling flags.
stack build pkg-1.0 will now build pkg-1.0 even if the snapshot specifies a different version (it introduces a temporary extra-dep)
Experimental support for --split-objs added #1284.
git packages with submodules are supported by passing the --recursive flag to git clone.
When using hpack, only regenerate cabal files when hpack files change.
hpack files can now be used in templates
stack ghci now runs ghci as a separate process #1306
Retry when downloading snapshots and package indices
Many build options are configurable now in stack.yaml:

  build:
    library-profiling: true
    executable-profiling: true
    haddock: true
    haddock-deps: true
    copy-bins: true
    prefetch: true
    force-dirty: true
    keep-going: true
    test: true
    test-arguments:
      rerun-tests: true
      additional-args: ['-fprof']
      coverage: true
      no-run-tests: true
    bench: true
    benchmark-opts:
      benchmark-arguments: -O2
      no-run-benchmarks: true
    reconfigure: true
    cabal-verbose: true

A number of URLs are now configurable, useful for firewalls. See #1794.
Suggest causes when executables are missing.
Allow --omit-packages even without --solver.
Improve the generated stack.yaml.
Improve ghci results after :load Main module collision with main file path.
Only load the hackage index if necessary #1883, #1892.
init: allow local packages to be deps of deps #1965.
Always use full fingerprints from GPG #1952.
Default to using gpg2 and fall back to gpg #1976.
Add a flag for --verbosity silent.
Add haddock --open flag #1396.

Bug fixes:

Package tarballs would fail to unpack. #1884.
Fixed errant warnings about missing modules, after deleted and removed from cabal file #921 #1805.
Now considers a package to dirty when the hpack file is changed #1819.
Nix: cancelling a stack build now exits properly rather than dropping into a nix-shell #1778.
allow-newer: true now causes --exact-configuration to be passed to Cabal. See #1579.
stack solver no longer fails with InvalidRelFile for relative package paths including ... See #1954.
Ignore emacs lock files when finding .cabal #1897.
Use lenient UTF-8 decode for build output #1945.
Clear index cache whenever index updated #1962.
Fix: Building a container image drops a .stack-work dir in the current working (sub)directory #1975.
Fix: Rebuilding when disabling profiling #2023.

1.0.4.3

Bug fixes:

Don't delete contents of ~/.ssh when using stack clean --full with Docker enabled #2000

1.0.4.2

Build with path-io-1.0.0. There are no changes in behaviour from 1.0.4, so no binaries are released for this version.

1.0.4.1

Fixes build with aeson-0.11.0.0. There are no changes in behaviour from 1.0.4, so no binaries are released for this version.

1.0.4

Major changes:

Some notable changes in stack init:
- Overall it should now be able to initialize almost all existing cabal packages out of the box as long as the package itself is consistently defined.
- Choose the best possible snapshot and add extra dependencies on top of a snapshot resolver rather than a compiler resolver - #1583
- Automatically omit a package (--omit-packages) when it is compiler incompatible or when there are packages with conflicting dependency requirements - #1674.
- Some more changes for a better user experience. Please refer to the doc guide for details.
Add support for hpack, alternative package description format #1679

Other enhancements:

Docker: pass ~/.ssh and SSH auth socket into container, so that git repos work #1358.
Docker: strip suffix from docker --version. #1653
Docker: pass USER and PWD environment variables into container.
On each run, stack will test the stack root directory (/.stack), and the project and package work directories (.stack-work) for whether they are owned by the current user and abort if they are not. This precaution can be disabled with the --allow-different-user flag or allow-different-user option in the global config (/.stack/config.yaml). #471
Added stack clean --full option for full working dir cleanup.
YAML config: support Zip archives.
Redownload build plan if parsing fails #1702.
Give mustache templates access to a 'year' tag #1716.
Have "stack ghci" warn about module name aliasing.
Add "stack ghci --load-local-deps".
Build Setup.hs with -rtsopts #1687.
stack init accepts a list of directories.
Add flag infos to DependencyPlanFailures (for better error output in case of flags) #713
stack new --bare complains for overwrites, and add --force option #1597.

Bug fixes:

Previously, stack ghci would fail with cannot satisfy -package-id when the implicit build step changes the package key of some dependency.
Fix: Building with ghcjs: "ghc-pkg: Prelude.chr: bad argument: 2980338" #1665.
Fix running test / bench with --profile / --trace.
Fix: build progress counter is no longer visible #1685.
Use "-RTS" w/ profiling to allow extra args #1772.
Fix withUnpackedTarball7z to find name of srcDir after unpacking (fixes stack setup fails for ghcjs project on windows) #1774.
Add space before auto-generated bench opts (makes profiling options work uniformly for applications and benchmark suites) #1771.
Don't try to find plugin if it resembles flag.
Setup.hs changes cause package dirtiness #1711.
Send "stack templates" output to stdout #1792.

1.0.2

Release notes:

Arch Linux: Stack has been adopted into the official community repository, so we will no longer be updating the AUR with new versions. See the install/upgrade guide for current download instructions.

Major changes:

stack init and solver overhaul #1583

Other enhancements:

Disable locale/codepage hacks when GHC >=7.10.3 #1552
Specify multiple images to build for stack image container docs
Specify which executables to include in images for stack image container docs
Docker: pass supplementary groups and umask into container
If git fetch fails wipe the directory and try again from scratch #1418
Warn if newly installed executables won't be available on the PATH #1362
stack.yaml: for stack image container, specify multiple images to generate, and which executables should be added to those images
GHCI: add interactive Main selection #1068
Care less about the particular name of a GHCJS sdist folder #1622
Unified Enable/disable help messaging #1613

Bug fixes:

Don't share precompiled packages between GHC/platform variants and Docker #1551
Properly redownload corrupted downloads with the correct file size. Mailing list discussion
Gracefully handle invalid paths in error/warning messages #1561
Nix: select the correct GHC version corresponding to the snapshot even when an abstract resolver is passed via --resolver on the command-line. #1641
Fix: Stack does not allow using an external package from ghci #1557
Disable ambiguous global '--resolver' option for 'stack init' #1531
Obey --no-nix flag
Fix: GHCJS Execute.hs: Non-exhaustive patterns in lambda #1591
Send file-watch and sticky logger messages to stderr #1302 #1635
Use globaldb path for querying Cabal version #1647

1.0.0

Release notes:

We're calling this version 1.0.0 in preparation for Stackage LTS 4. Note, however, that this does not mean the code's API will be stable as this is primarily an end-user tool.

Enhancements:

Added flag --profile flag: passed with stack build, it will enable profiling, and for --bench and --test it will generate a profiling report by passing +RTS -p to the executable(s). Great for using like stack build --bench --profile (remember that enabling profile will slow down your benchmarks by >4x). Run stack build --bench again to disable the profiling and get proper speeds
Added flag --trace flag: just like --profile, it enables profiling, but instead of generating a report for --bench and --test, prints out a stack trace on exception. Great for using like stack build --test --trace
Nix: all options can be overridden on command line #1483
Nix: build environments (shells) are now pure by default.
Make verbosity silent by default in script interpreter mode #1472
Show a message when resetting git commit fails #1453
Improve Unicode handling in project/package names #1337
Fix ambiguity between a stack command and a filename to execute (prefer stack subcommands) #1471
Support multi line interpreter directive comments #1394
Handle space separated pids in ghc-pkg dump (for GHC HEAD) #1509
Add ghci --no-package-hiding option #1517
stack new can download templates from URL #1466

Bug fixes:

Nix: stack exec options are passed properly to the stack sub process #1538
Nix: specifying a shell-file works in any current working directory #1547
Nix: use --resolver argument
Docker: fix missing image message and '--docker-auto-pull'
No HTML escaping for "stack new" template params #1475
Set permissions for generated .ghci script #1480
Restrict commands allowed in interpreter mode #1504
stack ghci doesn't see preprocessed files for executables #1347
All test suites run even when only one is requested #1550
Edge cases in broken templates give odd errors #1535
Fix test coverage bug on windows

0.1.10.1

Bug fixes:

stack image container did not actually build an image #1473

0.1.10.0

Release notes:

The Stack home page is now at haskellstack.org, which shows the documentation rendered by readthedocs.org. Note: this has necessitated some changes to the links in the documentation's markdown source code, so please check the links on the website before submitting a PR to fix them.
The locations of the Ubuntu and Debian package repositories have changed to have correct URL semantics according to Debian's guidelines #1378. The old locations will continue to work for some months, but we suggest that you adjust your /etc/apt/sources.list.d/fpco.list to the new location to avoid future disruption.
openSUSE and SUSE Linux Enterprise packages are now available, thanks to @mimi1vx. Note: there will be some lag before these pick up new versions, as they are based on Stackage LTS.

Major changes:

Support for building inside a Nix-shell providing system dependencies #1285
Add optional GPG signing on stack upload --sign or with stack sig sign ...

Other enhancements:

Print latest applicable version of packages on conflicts #508
Support for packages located in Mercurial repositories #1397
Only run benchmarks specified as build targets #1412
Support git-style executable fall-through (stack something executes stack-something if present) #1433
GHCi now loads intermediate dependencies #584
--work-dir option for overriding .stack-work #1178
Support detailed-0.9 tests #1429
Docker: improved POSIX signal proxying to containers #547

Bug fixes:

Show absolute paths in error messages in multi-package builds #1348
Docker-built binaries and libraries in different path #911 #1367
Docker: --resolver argument didn't effect selected image tag
GHCi: Spaces in filepaths caused module loading issues #1401
GHCi: cpp-options in cabal files weren't used #1419
Benchmarks couldn't be run independently of each other #1412
Send output of building setup to stderr #1410

0.1.8.0

Major changes:

GHCJS can now be used with stackage snapshots via the new compiler field.
Windows installers are now available: download them here #613
Docker integration works with non-FPComplete generated images #531

Other enhancements:

Added an allow-newer config option #922 #770
When a Hackage revision invalidates a build plan in a snapshot, trust the snapshot #770
Added a stack config set resolver RESOLVER command. Part of work on #115
stack setup can now install GHCJS on windows. See #1145 and #749
stack hpc report command added, which generates reports for HPC tix files
stack ghci now accepts all the flags accepted by stack build. See #1186
stack ghci builds the project before launching GHCi. If the build fails, try to launch GHCi anyway. Use stack ghci --no-build option to disable #1065
stack ghci now detects and warns about various circumstances where it is liable to fail. See #1270
Added require-docker-version configuration option
Packages will now usually be built along with their tests and benchmarks. See #1166
Relative local-bin-path paths will be relative to the project's root directory, not the current working directory. #1340
stack clean now takes an optional [PACKAGE] argument for use in multi-package projects. See #583
Ignore cabal_macros.h as a dependency #1195
Pad timestamps and show local time in --verbose output #1226
GHCi: Import all modules after loading them #995
Add subcommand aliases: repl for ghci, and runhaskell for runghc #1241
Add typo recommendations for unknown package identifiers #158
Add stack path --local-hpc-root option
Overhaul dependencies' haddocks copying #1231
Support for extra-package-dbs in 'stack ghci' #1229
stack new disallows package names with "words" consisting solely of numbers #1336
stack build --fast turns off optimizations
Show progress while downloading package index #1223.

Bug fixes:

Fix: Haddocks not copied for dependencies #1105
Fix: Global options did not work consistently after subcommand #519
Fix: 'stack ghci' doesn't notice that a module got deleted #1180
Rebuild when cabal file is changed
Fix: Paths in GHC warnings not canonicalized, nor those for packages in subdirectories or outside the project root #1259
Fix: unlisted files in tests and benchmarks trigger extraneous second build #838

0.1.6.0

Major changes:

stack setup now supports building and booting GHCJS from source tarball.
On Windows, build directories no longer display "pretty" information (like x86_64-windows/Cabal-1.22.4.0), but rather a hash of that content. The reason is to avoid the 260 character path limitation on Windows. See #1027
Rename config files and clarify their purposes #969
- ~/.stack/stack.yaml --> ~/.stack/config.yaml
- ~/.stack/global --> ~/.stack/global-project
- /etc/stack/config --> /etc/stack/config.yaml
- Old locations still supported, with deprecation warnings
New command "stack eval CODE", which evaluates to "stack exec ghc -- -e CODE".

Other enhancements:

No longer install git on Windows #1046. You can still get this behavior by running the following yourself: stack exec -- pacman -Sy --noconfirm git.
Typing enter during --file-watch triggers a rebuild #1023
Use Haddock's --hyperlinked-source (crosslinked source), if available #1070
Use Stack-installed GHCs for stack init --solver #1072
New experimental stack query command #1087
By default, stack no longer rebuilds a package due to GHC options changes. This behavior can be tweaked with the rebuild-ghc-options setting. #1089
By default, ghc-options are applied to all local packages, not just targets. This behavior can be tweaked with the apply-ghc-options setting. #1089
Docker: download or override location of stack executable to re-run in container #974
Docker: when Docker Engine is remote, don't run containerized processes as host's UID/GID #194
Docker: set-user option to enable/disable running containerized processes as host's UID/GID #194
Custom Setup.hs files are now precompiled instead of interpreted. This should be a major performance win for certain edge cases (biggest example: building Cabal itself) while being either neutral or a minor slowdown for more common cases.
stack test --coverage now also generates a unified coverage report for multiple test-suites / packages. In the unified report, test-suites can contribute to the coverage of other packages.

Bug fixes:

Ignore stack-built executables named ghc #1052
Fix quoting of output failed command line arguments
Mark executable-only packages as installed when copied from cache #1043
Canonicalize temporary directory paths #1047
Put code page fix inside the build function itself #1066
Add explicit-setup-deps option #1110, and change the default to the old behavior of using any package in the global and snapshot database #1025
Precompiled cache checks full package IDs on Cabal < 1.22 #1103
Pass -package-id to ghci #867
Ignore global packages when copying precompiled packages #1146

0.1.5.0

Major changes:

On Windows, we now use a full MSYS2 installation in place of the previous PortableGit. This gives you access to the pacman package manager for more easily installing libraries.
Support for custom GHC binary distributions #530
- ghc-variant option in stack.yaml to specify the variant (also --ghc-variant command-line option)
- setup-info in stack.yaml, to specify where to download custom binary distributions (also --ghc-bindist command-line option)
- Note: On systems with libgmp4 (aka libgmp.so.3), such as CentOS 6, you may need to re-run stack setup due to the centos6 GHC bindist being treated like a variant
A new --pvp-bounds flag to the sdist and upload commands allows automatic adding of PVP upper and/or lower bounds to your dependencies

Other enhancements:

Adapt to upcoming Cabal installed package identifier format change #851
stack setup takes a --stack-setup-yaml argument
--file-watch is more discerning about which files to rebuild for #912
stack path now supports --global-pkg-db and --ghc-package-path
--reconfigure flag #914 #946
Cached data is written with a checksum of its structure #889
Fully removed --optimizations flag
Added --cabal-verbose flag
Added --file-watch-poll flag for polling instead of using filesystem events (useful for running tests in a Docker container while modifying code in the host environment. When code is injected into the container via a volume, the container won't propagate filesystem events).
Give a preemptive error message when -prof is given as a GHC option #1015
Locking is now optional, and will be turned on by setting the STACK_LOCK environment variable to true #950
Create default stack.yaml with documentation comments and commented out options #226
Out of memory warning if Cabal exits with -9 #947

Bug fixes:

Hacky workaround for optparse-applicative issue with stack exec --help #806
Build executables for local extra deps #920
copyFile can't handle directories #942
Support for spaces in Haddock interface files fpco/minghc#85
Temporarily building against a "shadowing" local package? #992
Fix Setup.exe name for --upgrade-cabal on Windows #1002
Unlisted dependencies no longer trigger extraneous second build #838

0.1.4.1

Fix stack's own Haddocks. No changes to functionality (only comments updated).

0.1.4.0

Major changes:

You now have more control over how GHC versions are matched, e.g. "use exactly this version," "use the specified minor version, but allow patches," or "use the given minor version or any later minor in the given major release." The default has switched from allowing newer later minor versions to a specific minor version allowing patches. For more information, see #736 and #784.
Support added for compiling with GHCJS
stack can now reuse prebuilt binaries between snapshots. That means that, if you build package foo in LTS-3.1, that binary version can be reused in LTS-3.2, assuming it uses the same dependencies and flags. #878

Other enhancements:

Added the --docker-env argument, to set environment variables in Docker container.
Set locale environment variables to UTF-8 encoding for builds to avoid "commitBuffer: invalid argument" errors from GHC #793
Enable transliteration for encoding on stdout and stderr #824
By default, stack upgrade automatically installs GHC as necessary #797
Added the ghc-options field to stack.yaml #796
Added the extra-path field to stack.yaml
Code page changes on Windows only apply to the build command (and its synonyms), and can be controlled via a command line flag (still defaults to on) #757
Implicitly add packages to extra-deps when a flag for them is set #807
Use a precompiled Setup.hs for simple build types #801
Set --enable-tests and --enable-benchmarks optimistically #805
--only-configure option added #820
Check for duplicate local package names
Stop nagging people that call stack test #845
--file-watch will ignore files that are in your VCS boring/ignore files #703
Add --numeric-version option

Bug fixes:

stack init --solver fails if GHC_PACKAGE_PATH is present #860
stack solver and stack init --solver check for test suite and benchmark dependencies #862
More intelligent logic for setting UTF-8 locale environment variables #856
Create missing directories for stack sdist
Don't ignore .cabal files with extra periods #895
Deprecate unused --optimizations flag
Truncated output on slow terminals #413

0.1.3.1

Bug fixes:

Ignore disabled executables #763

0.1.3.0

Major changes:

Detect when a module is compiled but not listed in the cabal file (#32)
- A warning is displayed for any modules that should be added to other-modules in the .cabal file
- These modules are taken into account when determining whether a package needs to be built
Respect TemplateHaskell addDependentFile dependency changes (#105)
- TH dependent files are taken into account when determining whether a package needs to be built.
Overhauled target parsing, added --test and --bench options #651
- For details, see Build commands documentation

Other enhancements:

Set the HASKELL_DIST_DIR environment variable #524
Track build status of tests and benchmarks #525
--no-run-tests #517
Targets outside of root dir don't build #366
Upper limit on number of flag combinations to test #543
Fuzzy matching support to give better error messages for close version numbers #504
--local-bin-path global option. Use to change where binaries get placed on a --copy-bins #342
Custom snapshots #111
--force-dirty flag: Force treating all local packages as having dirty files (useful for cases where stack can't detect a file change)
GHC error messages: display file paths as absolute instead of relative for better editor integration
Add the --copy-bins option #569
Give warnings on unexpected config keys #48
Remove Docker pass-host option
Don't require cabal-install to upload #313
Generate indexes for all deps and all installed snapshot packages #143
Provide --resolver global option #645
- Also supports --resolver nightly, --resolver lts, and --resolver lts-X
Make stack build --flag error when flag or package is unknown #617
Preserve file permissions when unpacking sources #666
stack build etc work outside of a project
list-dependencies command #638
--upgrade-cabal option to stack setup #174
--exec option #651
--only-dependencies implemented correctly #387

Bug fixes:

Extensions from the other-extensions field no longer enabled by default #449
Fix: haddock forces rebuild of empty packages #452
Don't copy over executables excluded by component selection #605
Fix: stack fails on Windows with git package in stack.yaml and no git binary on path #712
Fixed GHCi issue: Specifying explicit package versions (#678)
Fixed GHCi issue: Specifying -odir and -hidir as .stack-work/odir (#529)
Fixed GHCi issue: Specifying A instead of A.ext for modules (#498)

0.1.2.0

Add --prune flag to stack dot #487
Add --[no-]external,--[no-]include-base flags to stack dot #437
Add --ignore-subdirs flag to init command #435
Handle attempt to use non-existing resolver #436
Add --force flag to init command
exec style commands accept the --package option (see Reddit discussion)
stack upload without arguments doesn't do anything #439
Print latest version of packages on conflicts #450
Flag to avoid rerunning tests that haven't changed #451
stack can act as a script interpreter (see [Script interpreter] (https://github.com/commercialhaskell/stack/wiki/Script-interpreter) and Reddit discussion)
Add the --file-watch flag to auto-rebuild on file changes #113
Rename stack docker exec to stack exec --plain
Add the --skip-msys flag #377
--keep-going, turned on by default for tests and benchmarks #478
concurrent-tests: BOOL #492
Use hashes to check file dirtiness #502
Install correct GHC build on systems with libgmp.so.3 #465
stack upgrade checks version before upgrading #447

0.1.1.0

Remove GHC uncompressed tar file after installation #376
Put stackage snapshots JSON on S3 #380
Specifying flags for multiple packages #335
single test suite failure should show entire log #388
valid-wanted is a confusing option name #386
stack init in multi-package project should use local packages for dependency checking #384
Display information on why a snapshot was rejected #381
Give a reason for unregistering packages #389
stack exec accepts the --no-ghc-package-path parameter
Don't require build plan to upload #400
Specifying test components only builds/runs those tests #398
STACK_EXE environment variable
Add the stack dot command
stack upgrade added #237
--stack-yaml command line flag #378
--skip-ghc-check command line flag #423

Bug fixes:

Haddock links to global packages no longer broken on Windows #375
Make flags case-insensitive #397
Mark packages uninstalled before rebuilding #365

0.1.0.0

Fall back to cabal dependency solver when a snapshot can't be found
Basic implementation of stack new #137
stack solver command #364
stack path command #95
Haddocks #143:
- Build for dependencies
- Use relative links
- Generate module contents and index for all packages in project

0.0.3

--prefetch #297
upload command ported from stackage-upload #225
--only-snapshot #310
--resolver #224
stack init #253
--extra-include-dirs and --extra-lib-dirs #333
Specify intra-package target #201

0.0.2

Fix some Windows specific bugs #216
Improve output for package index updates #227
Automatically update indices as necessary #227
--verbose flag #217
Remove packages (HTTPS and Git) #199
Config values for system-ghc and install-ghc
Merge stack deps functionality into stack build
install command #153 and #272
overriding architecture value (useful to force 64-bit GHC on Windows, for example)
Overhauled test running (allows cycles, avoids unnecessary recompilation, etc)

0.0.1

First public release, beta quality

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