ruby-backports 3.16.0-1 (amd64 binary) in ubuntu hirsute

 This Ruby library contains essential backports that enable many of the nice
 features of Ruby 1.8.7 up to 2.0.0 for earlier versions.
 .
 Features are backported with the following limitations:
  - will not break older code,
  - can be implemented in pure Ruby (no C extensions),
  - must pass RubySpec.