Upgrading existing ionic project to latest version


Upgrading existing ionic project to latest ionic version.

How to update cordova and ionic?

Attaching ionic info from my project


You didn’t really ask a question, but:

https://github.com/ionic-team/ionic/releases/tag/v3.4.0 has a nice “Steps to upgrade” description.
There was a .2 release later, so just replace “3.4.0” with “3.4.2”.


I got my answers.
i used following commands.

-npm update -g ionic or ( use npm uninstall cordova ionic and npm install -g cordova ionic)
or ( npm install -g ionic@latest)

After that I created new project and compared its ionic info with my existing project.All coponents version were same for both new and old project except, New project had higher version of ionic-angular and @ionic/app-script than old so, I used following commands to upgrade these individial components,
-npm install ionic-angular@latest --save
-npm install @ionic/app-scripts@latest --save dev


Please be aware that not only the ionic libraries, but also angular and some others (see changelog on Github I linked) should be upgraded for optimal functionality.