add CHANGELOG file

CHANGELOG.md

@@ -0,0 +1,93 @@
+## UNRELEASED
+
+### Fixed
+
+- Broken on "obscure" platforms (such as NixOS), see #77
+
+### Added
+
+- A CHANGELOG.md file, see #78
+
+## [8.2.3] 2018-09-11
+
+### Fixed
+
+- README: Link to concurrency discussion
+
+## [8.2.2] 2018-09-11
+
+### Fixed
+
+- README: Details on concurrency
+
+## [8.2.1] 2018-09-11
+
+### Fixed
+
+- A rare idempotency edge case where a command might have been run more than once, given a very specific OS environment setup.
+
+## [8.2.0] 2018-03-22
+
+### Added
+
+- Windows: Fix `cd` when `cwd` is on another drive, see #70
+
+## [8.1.0] 2018-01-10
+
+### Added
+
+- Linux: Increase maxBuffer limit to 128 MiB, see #66
+
+## [8.0.0] 2018-11-02
+
+### Changed
+
+- Windows: Set code page of command batch script to UTF-8
+
+## [7.1.1] 2017-07-18
+
+### Fixed
+
+- README: explicitly mention that no child process is returned
+
+## [7.0.0] 2017-03-15
+
+### Changed
+
+- Add status code to errors on Windows and macOS
+
+## [6.2.1] 2016-12-16
+
+### Fixed
+
+- README: syntax highlighting
+
+## [6.2.0] 2016-08-17
+
+### Fixed
+
+- README: Rename OS X to macOS
+
+## [6.1.0] 2016-08-02
+
+### Added
+
+- Yield an error if no polkit authentication agent is found, see #29
+
+## [6.0.2] 2016-07-21
+
+### Fixed
+
+- README: Update explanation of Linux behavior
+
+## [6.0.1] 2016-07-15
+
+### Fixed
+
+- Update keywords in package.json
+
+## [6.0.0] 2016-07-15
+
+### Changed
+
+- Added support for Windows