Upgrading to Rails 4 from Rails 3 gotchas

Question

We have an app in Rails 3.2 that we want to upgrade to Rails 4.0. I have read the various guidelines available on the possible issues like here and here.

I would like to know of some not so common/obvious gotchas that we should be aware of when upgrading to 4.0?

score 2 · Answer 1 · edited May 23 '17 at 12:21

2

Ones that got me:

CanCan not yet playing nicely with StrongParameters: Ended up using this work-around.
Named Scopes require Procs: Well documented, but still got me. See my issue here.
Turbolinks bypasses document.ready: Good overview here.

edited May 23 '17 at 12:21

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answered Sep 28 '13 at 02:44

Paul Pettengill

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Upgrading to Rails 4 from Rails 3 gotchas

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