Is it possible to isolate 'rvm upgrade' to single ruby version?

Question

I wanted to upgrade Ruby version. The documentation I initially followed was on RVM: Upgrading Rubies .

On my machine, I had multiple ruby versions loaded, including

$ rvm list

rvm rubies

   ruby-1.8.7-pxxx [ i686 ]
=> ruby-1.9.3-pxxx [ i686 ]
   ruby-2.0.0-p0   [ i686 ]

Wanted to upgrade ruby-2.0, so ran that rvm upgrade 2.0.0-p0 2.0.0-p247 . The thing is, it then seemed to force upgrade on all of the other versions as well, where I no longer could use commands like rvm use 1.8 or rvm use 1.9 without having to upgrade those to the latest -pxxx versions.

For reference, is there a way to isolate this upgrade to one ruby version , so that for example, when I upgrade 2.0 in future, I don't have to mess around with ruby-1.9.3-p448 anymore?

Answer 1

Actually, what it did was update the info about the latest ruby patches on each version. What you needed to do was rvm use 1.9.3-pxxx , where xxx is the old ruby version that you already had. If you use only rvm use 1.9.3 rvm will default to the latest patch of that version