Ember.js migration from 1.8.1 to version 2.+ -


we have quite big application built on version 1.8.1. migrate version 2.0 or higher. have few guestions:

  • does exist step-by-step manual how it?
  • can use 2 different versions of ember in same time? because of continuous migration...

we avoid overwriting of whole application...

i suggest update ember. , keep deprecation warnings open. can try investigating each warning 1 one , update code new syntax.

this guide can useful : upgrade ember 2.x step-by step

since ember uses global window scope, result in conflicts , not advisable use 2 versions of ember.


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