According to “ Can you tell me which stones in Gemfile have newer versions (for example, dry package updates) ” topic - there is no direct way to do this.
As a workaround, if you use the version control function, just run bundler updateprint diff Gemfile.lock(against the version from the repo) and return it back.
Jun 2012: 1.1 bundle outdated - , , :
$ bundle outdated
Fetching gem metadata from http:
Outdated gems included in the bundle:
* multi_json (1.3.6 > 1.1.0)
* activesupport (3.2.6 > 3.2.1)
* activemodel (3.2.6 > 3.2.1)
* journey (1.0.4 > 1.0.3)
...
.