Ruby 2.7 support
Ruby 2.7.0 is going to be released on 2019-12-25.
#3 Updated by Seiei Miyagi 5 days ago
With ruby 2.7, following tests failed.
bin/rails test test/functional/timelog_report_test.rb:262 bin/rails test test/functional/timelog_report_test.rb:308
I send a pull request to ruby/csv to fix it.
The pull request is merged but not released yet.