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Latest commit bbb84a1 Apr 29, 2016 @fxn fxn restores the regexp used in String#blank?
This commit undoes 54243fe.

Reason: Further investigation has shown the benefit is not so clear
generally speaking.

There is a long discussion and several benchmarks in the PR #24658
if you are interested in the details.


Active Support – Utility classes and Ruby extensions from Rails

Active Support is a collection of utility classes and standard library extensions that were found useful for the Rails framework. These additions reside in this package so they can be loaded as needed in Ruby projects outside of Rails.

Download and installation

The latest version of Active Support can be installed with RubyGems:

$ gem install activesupport

Source code can be downloaded as part of the Rails project on GitHub:


Active Support is released under the MIT license:


API documentation is at:

Bug reports can be filed for the Ruby on Rails project here:

Feature requests should be discussed on the rails-core mailing list here:

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