"rvm rubygems current" vs "rvm update --system" vs "gem update rubygems-update"

Question

A little embarrassed about how to go about updating rubygems. The process continues to change (or at least I get conflicting information from interwebs).

$ gem outdated rubygems-update (1.8.10 < 1.8.11) sass (3.1.8 < 3.1.10) $ rvm gemset use global $ gem outdated rubygems-update (1.8.10 < 1.8.11) 

In the past, I used rvm update --system to install rubygems-update , then switched to my working gemset (from global ) and updated the rest of the gems.

But lately, I switched to rvm rubygems current on

Answer 1

Update RVM to the latest development version:

 rvm get head 

or for the stable version:

 rvm get stable 

update rubygems to the latest version:

 rvm rubygems latest 

or just a version:

 rvm rubygems 1.8.16 

rubygems is installed for ruby, not for gemset, so it is impossible to use different rubygems in different gemset