 
  bundle-outdated - List installed gems with newer versions available
bundle outdated [GEM] [--local]
                        [--pre]
                        [--source]
                        [--strict]
                        [--parseable | --porcelain]
                        [--group=GROUP]
                        [--groups]
                        [--patch|--minor|--major]
                        [--filter-major]
                        [--filter-minor]
                        [--filter-patch]
                        [--only-explicit]Outdated lists the names and versions of gems that have a newer version available in the given source. Calling outdated with [GEM [GEM]] will only check for newer versions of the given gems. Prerelease gems are ignored by default. If your gems are up to date, Bundler will exit with a status of 0. Otherwise, it will exit 1.
--local--pre--source--strict--parseable, --porcelain
--group--groups--minor--major--patch--filter-major--filter-minor--filter-patch--only-explicitSee bundle update(1) for details.
The 3 filtering options do not affect the resolution of versions, merely what versions are shown in the output.
If the regular output shows the following:
* Gem       Current  Latest  Requested  Groups
* faker     1.6.5    1.6.6   ~> 1.4     development, test
* hashie    1.2.0    3.4.6   = 1.2.0    default
* headless  2.2.3    2.3.1   = 2.2.3    test
--filter-major would only show:
* Gem       Current  Latest  Requested  Groups
* hashie    1.2.0    3.4.6   = 1.2.0    default
--filter-minor would only show:
* Gem       Current  Latest  Requested  Groups
* headless  2.2.3    2.3.1   = 2.2.3    test
--filter-patch would only show:
* Gem       Current  Latest  Requested  Groups
* faker     1.6.5    1.6.6   ~> 1.4     development, test
Filter options can be combined. --filter-minor and --filter-patch would show:
* Gem       Current  Latest  Requested  Groups
* faker     1.6.5    1.6.6   ~> 1.4     development, test Combining all three `filter` options would be the same result as providing none of them.