how to Upgrade Grails from Grails 2.4.4 to Grails 3.3.6?

Question

I need to upgrade my grails application from 2.4.4 to 3.3.6. is there any smart way to do it or any kind of help if you can share your experience.

Answer 1

Always follow the official upgrade guides.

There are upgrade guides from 2.x -> 3.2 and then from 3.2 -> 3.3

• 2.x -> 3.2: http://docs.grails.org/3.2.x/guide/upgrading.html#upgrading2x
• 3.2 -> 3.3: http://docs.grails.org/3.3.0/guide/upgrading.html

So you need to perform upgrade in 2 separate steps.