Edit or Merge Labels in Jira
Using Advanced Label Manager for Jira, you can edit the label name as needed. The renaming will be reflected in all issues where the label was used.
To rename labels globally:
Go to Apps → Manage Labels
Find the label and click a pencil icon (✏️) to rename.
To rename labels in a project, go to Project → Manage Labels instead.
Please note: If you are in global mode, administrative actions (rename, delete etc.) will affect all projects. If you do not want this, use per project label management.
Merge two or more labels
If you have duplicate labels or just need to merge multiple labels into one, this is now possible.
In order to merge labels:
Find and select labels to be merged
Click Merge, which will open a new window
Select existing or type new label as target label