What additional features have appeared in WebStorm 2016 compared to version 9?

Question

webstorm

In our company, the question arose about updating WebStorm from version 9 to 2016. The management asks to justify the renewal of the license. We edit the code on the webstorm: js, html, css. Tell me, what arguments can be the strongest in favor of the new version?

Answer 1

Read patch notes of major releases and decide for yourself whether they are important to you or not.
https://blog.jetbrains.com/webstorm/