upgrade

Usage:

  rvm upgrade [source ruby] [destination ruby]

Description:

  Upgrades the specified (already installed) source ruby to the
  given destination ruby version. Will migrate gemsets, wrappers, aliases
  and environment files.

  The process will prompt you at each stage - if the versions look incorrect,
  please cancel and perform it manually.


Examples:

  $ rvm upgrade 1.9.2-p136 1.9.2-p180

  $ rvm upgrade ree-2011.01 ree-2011-02