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I am going to work on the open source Canvas-lms. Its using rails 2.3.5 but i am familar with rails 3.2.12.

  1. How to upgrade rails 2.3.5 to rails 3.2.12.
  2. What are the challenges.
  3. What is the best way to do it.

1 Answers1

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Include this in your Gemfile:

gem 'rails', '3.2.12'

Then run the command

bundle update rails

I think this is the best way to do it.

Soni Kishan
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  • Just upgrading the rails version doesn't change the api working of Rails. We have to lots of manual work to make this upgrade successful. – Vivek Parihar Sep 03 '13 at 12:59
  • Canvas is a massive codebase, with an upgrade effort already underway. You'll need to communicate with the developers to find out if/when Rails 3 compatability is ready. – brookr Apr 03 '14 at 17:27