Comments & reactions¶
Comments are how the conversation around an issue happens. Each comment is a permanent journal entry on the issue, so the discussion stays with the work it's about.

Write a comment¶
Scroll to the comment box on an issue, write your update, and post it. Comments are Markdown, so you can use lists, tables, links, and fenced code blocks with syntax highlighting.
Mention teammates¶
Type @username to mention someone. Mentioning a person notifies them, which is the easiest way to
pull a teammate into the discussion or hand something off without reassigning the whole issue.
Only people who can open the issue are notified: mentioning someone who cannot see it (a private
issue, or a project they are not a member of) sends them nothing.
The person is notified in the app and, if the instance sends email, by a mail that says you mentioned them, in their own language and with a link to your comment. If they also watch the issue or are assigned to it, they get that one notification about the comment, not two.
Reply in threads¶
Reply to a specific comment to keep a side discussion together as a thread, instead of one long flat list. This keeps related back-and-forth readable even on busy issues.
React with emoji¶
Add an emoji reaction to a comment — a quick thumbs-up or eyes — when you want to acknowledge something without adding another comment to the thread.
Comments are permanent
Comments are part of the issue's permanent history. They're meant as a record of the discussion, so treat them as you would a logbook entry. Changes to the issue's fields are recorded separately in its history.