Release v1.0.0 ! 🎉 · yarnpkg/yarn

Features

Feature: Allows the top-level package.json to override nested dependencies versions

kaylieEB - (#4105)
Feature: Adds a yarn-path rc config parameter

Maël Nison - (#4204)
Feature: Enables Workspaces by default

Burak Yiğit Kaya - (#4262)
Feature: Commands are now ran from the cwd package root if possible

Maël Nison - (#4246)
Feature: Exposes the lockfile parser into its own npm package (@yarnpkg/lockfile)

William Hilton - (#4114)
Feature: Implements a --cwd flag to run Yarn in a specific directory

Sebastian McKenzie - (#4174)
Feature: Implements the -v command to show Yarn's version when specified without other commands

kaylieEB - (#3913)
Feature: Detects and merges lockfile conflicts without user input

Sebastian McKenzie - (#3544)
Feature: Adds a preliminary support for // comments in package.json dependencies

Joachim Seminck - (#3829)

Breaking changes

Breaking: Commands run via yarn run are now automatically forwarded trailing options

Maël Nison - (#4152)
Breaking: Renames yarn clean to yarn autoclean

Jeff Valore - (#4252)
Breaking: Deprecates the implicit file: protocol, and only allow package dirs

Burak Yiğit Kaya - (#4257)
Breaking: Prevents yarn add from being run from a workspace root directory without --dev

Maël Nison - (#4166)
Breaking: Removes support for the yarn ... ls commands (use list instead of ls)

Tiago Pina - (#4045)
Breaking: Removes support for the yarn ... rm commands (use remove instead of rm)

Tiago Pina - (#3989)
Breaking: Validates the top-level package.json engines

Adam Crabtree - (#3675)

Improvements

Improvement: Adds support for git+***:// dependencies

Jeremy Judeaux - (#3735)
Improvement: Reimplements part of the integrity check to be faster and stronger

Maël Nison - (#4122)
Improvement: Warns when there's a missing bundledDependencies

Jeff Valore - (#4046)
Improvement: Implements a /tmp fallback if the preferred cache folders aren't writable

Maël Nison - (#4143)
Improvement: Optimizes the hoisting process on large dependency trees

Kenneth Chau - (#4222)
Improvement: Improves the error message when the tarball fetcher detects a bad hash

kaylieEB - (#4240)
Improvement: Adds a --private flag on the yarn init command

Pierre Neter - (#4165)
Improvement: Adds support for Github URL shorthands to yarn init

Frederick Morlock - (#4012)
Improvement: Improves the way packages referenced via the file: protocol are dedupped

Jack Aldridge - (#3945)
Improvement: Yarn is now distributed on NPM as a single file

Daniel Lo Nigro - (#3866)
Improvement: Adds retry on 5xx errors

Rifat Nabi - (#3686)
Improvement: Prevents creating a lockfile when there's no dependencies

Pig Fang - (#3395)

Bugfixes

Fix: Prevents linking transitive dependencies on global installs

Maël Nison - (#4265)
Fix: Avoids creating the global and link folders unless necessary

Burak Yiğit Kaya - (#4264)
Fix: Exposes the $NODE variable when running scripts

Burak Yiğit Kaya - (#4260)
Fix: Makes upgrade-interactive exit with a success exit code when no upgrades are needed

Jeff Valore - (#4261)
Fix: Ensures the bin folder exists before trying to use it

Burak Yiğit Kaya - (#4241)
Fix: Fixes the yarn workspace command to run in the right directories

James Kyle - (#4080)
Fix: Adds the missing --link-folder flag (#4235)

Maël Nison
Fix: Excludes dev dependencies from the yarn list output when the environment is production

Nick Olinger - (#4092)
Fix: Adds the missing pre/post hooks for the pack script

João Lucas Lucchetta - (#4193)
Fix: Solves artifacts disappearing when the integrity file was missing

Jamie - (#4185)
Fix: Tarballs created via yarn pack now contain a versioned folder name instead of dist

Burak Yiğit Kaya - (#4094)
Fix: Prevents the hoisting when it would break peer dependency requirements

Maël Nison - (#4086)
Fix: Prevents numeric versions from being resolved to local files

Burak Yiğit Kaya - (#4088)
Fix: Correctly handles scripts failing with exit signals

Onur Temizkan - (#3995)
Fix: Forces workspaces to always be installed from their root

Maël Nison - (#4030)
Fix: Prevents running pre/post hooks if they are not scripts

Burak Yiğit Kaya - (#4068)
Fix: Checks for npmrc in home directory for linux root users

kaylieEB - (#4047)
Fix: Prevents scoped package installs to crash with a 403 when the cache is empty

Chappo - (#4027)
Fix: Prevents optional subdependencies from being installed when using --ignore-optional

Maël Nison - (#3976)
Fix: Fixes missing path expansions

Burak Yiğit Kaya - (#4014)
Fix: Avoids using process.exit() when possible

Burak Yiğit Kaya - (#3955)
Fix: Global config is now also looked up in ${PREFIX}/etc/

Parakleta - (#3958)
Fix: Stops assuming that all string rc parameters are paths

Burak Yiğit Kaya - (#3941)
Fix: Fixes yarn global prefix directory

Kishan Bagaria - (#3721)
Fix: Fixes the authentication when using yarn publish

John Ferlito - (#3862)
Fix: Prevents --check-files from crossing symlink boundaries

Maël Nison - (#3931)
Fix: Removes the manifest check for global commands

kaylieEB - (#3921)
Fix: Correctly prioritizes git environment variables coming from the parent process

Aleksejs Sinicins - (#3885)
Fix: Prioritizes bin links at the root level

kaylieEB - (#3877)
Fix: Fixes package linking when a filename case changes

Maël Nison - (#3843)
Fix: Forwards SIGTERM to spawned child processes

Gabriel Aumala - (#3789)
Fix: Emoji should now default to true on darwin platforms

Burak Yiğit Kaya - (#3766)
Fix: Inherits env variables from the process when calling Git

Burak Yiğit Kaya - (#3743)
Fix: Prevents unwanted optimizations kicking in when installing a lockfile

Maël Nison - (#3729)
Fix: Transitive file: dependencies should now work properly

Konstantin Raev - (#3709)

And a lot of various other fixes, chores, documentation, minor text fixes ..., all thanks to the community! 🐬