Redmine

The latest version of globalid, 0.5.1, reqruies Ruby 2.6 or later (see https://github.com/rails/globalid/commit/5b255ffd7cdb335febe6fa0f3847a39b3161a9bb). Therefore, if you are using Ruby 2.5 or earlier, `bundle install` will fail to resolve the dependency and abort in some environments.

https://www.redmine.org/builds/logs/build_4.2-stable_sqlite3_ruby-2.5_38.html

Fetching globalid 0.5.1 (was 0.4.2)
Installing globalid 0.5.1 (was 0.4.2)
Gem::RuntimeRequirementNotMetError: globalid requires Ruby version >= 2.6.0. The
current ruby version is 2.6.0.rc1.
An error occurred while installing globalid (0.5.1), and Bundler cannot
continue.
Make sure that `gem install globalid -v '0.5.1' --source
'https://rubygems.org/'` succeeds before bundling.

In Gemfile:
  rails was resolved to 5.2.6, which depends on
    actionmailer was resolved to 5.2.6, which depends on
      activejob was resolved to 5.2.6, which depends on
        globalid
Build step 'Execute shell' marked build as failure
Finished: FAILURE