I currently have a number of projects that are accumulating a number of "DONE" issues.
One strategy I have adopted is to filter the board to only show done issues within a set range, e.g. 30 days.
Which is fine from a visual perspective, e.g. hiding the issues. However, when running bulk operations it still has to run through all of the issues, which adds an increasing overhead.
I was considering moving aged DONE issues to a separate project and updating a custom field to give indication of the team that completed the issue (we have multiple teams & projects). The issues would sit there for auditing & review purposes.
What strategies does everyone else follow in these circumstances?