v4.0.0-alpha.21

2018-September-07

Features

• [Experimental] Presets support #4027

Bug Fixes

• CLI: Add missing @babel/core dependency #4117
• Addon-Info: Fix duplicated keys in PropTypes table #4095

Dependency Upgrades

• Moved to lerna 3 #4067

Other

• [WIP] Refactor core and frameworks to work with presets #4043
• [WIP] presets - merge default babel configs [#4107]