Question

I have been following a guide to install an app called sharebox within rails. Currently I am using rails 3.2 but have just realised the guide uses rails 3.0.3.

My first question as a newbie to the rails world is what are the differences between the 2 versions and what would make the app not be fully functional on 3.2

Secondly is there a way to make the app compatible on 3.2 or do i need to use 3.0.3?

Thanks as always

Answer 1

My first question as a newbie to the rails world is what are the
differences between the 2 versions and what would make the app not be
fully functional on 3.2

Release notes at your service: Rails 3.2, Rails 3.1

Secondly is there a way to make the app compatible on 3.2 or do i need
to use 3.0.3?

If sharebox is commercial project then vendor should have an answer for that. In either case you can test compatibility with 3.2 by yourself and report issues to project developers.

Ive looked into RVM which i use to control my Ruby versions, but dont
understand how to manage rails versions at the same time..

You need to use gemsets in pair with editing Rails (and its dependencies) version in Gemfile.

P.S. Sergio Tulentsev is totally right. If you are to do this project, you have to catch up on Ruby and Rails ecosystems (rvm, rvm gemsets, bundler, Gemfile etc.).
Development of projects in ruby (and especially Rails) community is very intensive, you won’t survive asking everything on SO. Conclusion: Learn to read the docs, rdocs, rspecs etc. 🙂

I wish you best of luck in your beginning(s).