# Upgrading rails project - version 1.2.6 to current (2.3.5) **URL:** \ **Category:** Rails\ **Created:** [March 7, 2010, 9:25pm UTC](https://www.ruby-forum.com/t/upgrading-rails-project-version-1-2-6-to-current-2-3-5/184747 "2010-03-07T21:25:00Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![ptremblett](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/dc4da7/32.png) [@ptremblett](https://www.ruby-forum.com/u/ptremblett)\ **Post date:** [March 7, 2010, 9:25pm UTC](https://www.ruby-forum.com/t/upgrading-rails-project-version-1-2-6-to-current-2-3-5/184747/1 "2010-03-07T21:25:00Z")
Can anyone please advise me what is involved in up grading a project from version 1.2.6 to current (2.3.5). The project is pretty much vanilla code and does not use plugins. Are there scripts that can do the job (or pull out incompatibilities). Any websites or blogs that point the way or should I just bite the bullet and rewrite? Reason for wanting to upgrade is that I now do want to add features and start using plugins and of cause a lot of the plugins that I would like to use require rails 2.3+ Thanks Paul Thompson. ---
**Author:** ![ptremblett](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/dc4da7/32.png) [@ptremblett](https://www.ruby-forum.com/u/ptremblett)\ **Post date:** [March 7, 2010, 10:34pm UTC](https://www.ruby-forum.com/t/upgrading-rails-project-version-1-2-6-to-current-2-3-5/184747/2 "2010-03-07T22:34:05Z")
On Sun, Mar 7, 2010 at 3:23 PM, Paul Jonathan T. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Can anyone please advise me what is involved in up grading a project > from version 1.2.6 to current (2.3.5). The project is pretty much > vanilla code and does not use plugins. Are there scripts that can do > the job (or pull out incompatibilities). Any websites or blogs that > point the way or should I just bite the bullet and rewrite? Reason for > wanting to upgrade is that I now do want to add features and start > using plugins and of cause a lot of the plugins that I would like to > use require rails 2.3+ First, I’d recommend doing this in steps, first upgrade to Rails 2.0, then 2.1, then 2.3.5 Why? Rails 1.x to 2.0 was a pretty big change, for some apps 2.0 to 2.1 was even bigger because of some subtle and significant changes to ActiveRecord. So I’d do each step, and pause to make sure your tests are working. You DO have tests don’t you? Googling for rails upgrade, flushed out this article on the first step, more specific searches are likely to find articles on the others: > **[Upgrading to Rails 2.0. A Recipe — SitePoint](https://www.sitepoint.com/upgrading-to-rails-20-a-recipe/)** > > Read Upgrading to Rails 2.0. A Recipe and learn with SitePoint. Our web development and design tutorials, courses, and books will teach you HTML, CSS, JavaScript, PHP, Python, and more. It includes a pointer to a rake task written by Geoffrey Grossenbach (of Peepcode fame) which find stuff deprecated in 2.0. Recent versions of Rails have rake tasks to aid in upgrading e.g. in 2.3.5 rake rails:update # Update both configs, scripts and public/javascripts from Rails rake rails:update:application\_controller # Rename application.rb to application\_controller.rb rake rails:update:configs # Update config/boot.rb from your current rails install rake rails:update:generate\_dispatchers # Generate dispatcher files in RAILS\_ROOT/public rake rails:update:javascripts # Update your javascripts from your current rails install rake rails:update:scripts # Add new scripts to the application script/ directory I don’t recall if 2.0 had these, or at what point they were introduced. ## HTH Rick DeNatale Blog: [http://talklikeaduck.denhaven2.com/](http://talklikeaduck.denhaven2.com/) Twitter: [http://twitter.com/RickDeNatale](http://twitter.com/RickDeNatale) WWR: [http://www.workingwithrails.com/person/9021-rick-denatale](http://www.workingwithrails.com/person/9021-rick-denatale) LinkedIn: [http://www.linkedin.com/in/rickdenatale](http://www.linkedin.com/in/rickdenatale)