I'm starting a new project today, and I wanted to update Ruby to its latest version before starting.
The first thing I tried was to use RVM to upgrade the Ruby version, but it didn't work. I had to upgrade RVM first, so the last Ruby version would be included in the "known Rubies" list:
$ rvm get stable
When I ran rvm list known, it was there:
[ruby-]2.0.0[-p195]
And this last command did the trick:
$ rvm upgrade 2.0.0-p0 2.0.0-p195
