Releasing version 1.2.0

Author: LaunchDarklyCI

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 All notable changes to the project will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org).
 
+## [1.2.0] - 2020-07-01
+### Added:
+- New package `testbox` for running a Go test in a temporary environment.
+
 ## [1.1.3] - 2020-06-04
 ### Added:
 - Added `go.mod` so this package can be consumed as a module. This does not affect code that is currently consuming it via `go get`, `dep`, or `govendor`.