- Added ISO format #8 (@rambowm)
- Dropped Redmine 4.0 support
- Redmine 4.1 support
- Fixed automatic serial number when copying issue
- チケットコピー時に自動採番されない #6 (@subaru019)
- Review comments for this plugin on redmine.org (Jorge Garcia, Quan VN, qn wang)
- Support Redmine 4.0 (@nanego)
- Support French locale (@nanego)
- Drop support Redmine version 3.4 lower (@maeda-m)
- Changed the range to count sequential numbers from project unit to whole sharing as custom field unit #4 (@neocosmic2)
- Support Turkish locale #3 (@atopcu)
- Allow only sequence numbers #2 (@y-arai)
- Drop support Redmine versions 2.6 and 3.1 (@maeda-m)