Still with Ruby 1.8.7 ?

Any idea why the sandbox is still with Ruby 1.8.7 ?

I know I can install Ruby 2.x with either rbenv or rvm, but my team would like to have Ruby 2.x as part of the distribution itself, as Ruby 1.8.7 is outdated and retired.

How can I modify the distribution to have Ruby 2.x ?

Thanks
Naga