umi@2.5.6

umi@2.5.6 (2019-03-20)

🐛 Bug Fix

• umi-build-dev
  • #2139 fix: core js version lock (@sorrycc)
  • #2136 fix: lock core-js's version (@sorrycc)

Committers: 1

• chencheng (云谦) (@sorrycc)