How can I go from ionic 4.0 to version 8.0?

Please describe the question in detail and share your code, configuration, and other relevant info.

A while ago I made an application using ionic 4.0 and I would like to update it to version 8.0. I would like to know how I can do it and what changes I should make in the code so that there is no problem.

For example, should I make changes to the dependencies?

You would probably want to upgrade one version at a time, 4 to 5, 5 to 6, etc.

The upgrade guides have all the info you need - Updating to v5 | Ionic Documentation

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