Redmine

Thank you for reporting that nokogiri 1.9.0 has been released. I am setting the target version to 4.0.1.

Committed. Thanks.

Go MAEDA -> FYI Nokogiri 1.10.0 has been released on 2019-01-04

this version includes Ruby 2.6 support on Windows #30118

Nokogiri requires Ruby >= 2.3.0 but Redmine 4.0.0 officially supports Ruby 2.2.2. I have opened #30356 to drop support for Ruby 2.2.

$ bundle update
 .
 .
 .
Bundler could not find compatible versions for gem "ruby":
  In Gemfile:
    ruby

    nokogiri (~> 1.10.0) was resolved to 1.10.0, which depends on
      ruby (>= 2.3.0)

Committed.
Uses Nokogiri 1.9 for Ruby 2.2, 1.10 for Ruby >=2.3.