Dec 5, 2019 - Issues and issue types are now fully supported and can be fully linked bi-directionally. This works for any combination of issues - all affected issues are simultaneously updated with all logic affecting them (i.e. when you use a “blocks” ticket, it also updates the target ticket with “is blocked by.”) A good use case for this is the sheet manager searching and filtering for a specific issue ID within the issue links column to see everything affecting a ticket or Epic. This allows a user to very quickly find patterns of blockers, duplications etc. without significant manual effort in Jira.