Is it possible to run my Rails app on Heroku with Ruby 1.9.3? If so, how?

Question

I tried this tip: https://github.com/thoughtbot/laptop/pull/14#issuecomment-3192270 .

On deploy I see

-----> Using RUBY_VERSION: ruby-1.9.3-p0

But my logs show the environment variable is not respected

INFO  ruby 1.9.2 (2011-07-09) [x86_64-linux]

Hacky / experimental solutions accepted!

Edit: I am on the cedar stack.

Answer 1

Here's an update for everyone referencing this question... Heroku now allows you to specify your ruby version in your Gemfile, thanks to their addition to the latest version of bundler.

First run:

gem install bundler --pre

then add ruby '1.9.3' to your Gemfile as such.

source 'http://rubygems.org'

ruby '1.9.3'
gem  'rails', '3.2.3'

The full release from Heroku with details is at http://blog.heroku.com/archives/2012/5/9/multiple_ruby_version_support_on_heroku/