This feature has been discontinued from Istanbul release. It was available only in Geneva and Helsinki versions. The maintenance and making the feature seamless and non-buggy was getting challenging so we decided to pull out it in Istanbul. It is mentioned in Istanbul release notes as well.
Is there a feature/functionality to replace deferred save mode? Can you recommend a workaround? In Kingston, do users with it_project_manager role have the ability to undo and redo changes?
