Libyear

A simple measure of dependency freshness for ruby apps.

A libyear (library year) is a measure of how old a software dependency is.

If your system has two dependencies, the first one year old, the second three, then your system is four libyears out-of-date.

A dependency is one year old when the version you are using is one year older than its latest version.

Early access. Output and usage subject to change.

gem install libyear
libyear Gemfile
       activesupport   4.2.7.1     2016-08-10     5.0.1     2016-12-21       0.4
                json     1.8.6     2017-01-13     2.0.3     2017-01-12       0.0
   minitest_to_rspec     0.6.0     2015-06-09     0.8.0     2017-01-02       1.6
System is 1.9 libyears behind

ruby -I lib bin/libyear spec/fixtures/01/Gemfile