以前の StackOverflow の質問に基づいて、Ruby を最新のパッチ レベルにアップグレードする正しい方法は次のように見えました。
$ rvm upgrade 1.9.2 1.9.2-p0
Are you sure you wish to upgrade from ruby-1.9.2-p0 to ruby-1.9.2-p136? (Y/n): Y
ただし、これは私にはうまくいかないようです:
$ rvm upgrade 1.9.3 1.9.3-p0
Are you sure you wish to upgrade from ruby-1.9.3-p194 to ruby-1.9.3-p0? (Y/n): n
Cancelling upgrade.
$ rvm upgrade 1.9.3-p0 1.9.3
Are you sure you wish to upgrade from ruby-1.9.3-p194 to ruby-1.9.3-p194? (Y/n): n
Cancelling upgrade.
$ rvm upgrade 1.9.3-p0 1.9.3-p194
Are you sure you wish to upgrade from ruby-1.9.3-p194 to ruby-1.9.3-p194? (Y/n): n
Cancelling upgrade.
$ rvm upgrade 1.9.3-p194 1.9.3-p0
Are you sure you wish to upgrade from ruby-1.9.3-p194 to ruby-1.9.3-p0? (Y/n): n
Cancelling upgrade.
RVM で Ruby のバージョンをアップグレードするより適切な方法はありますか?