Track checklist changes. History
Smart Checklist History tab is available starting from Smart Checklist for Jira. Pro v6.5.0.
To track changes in your Smart Checklist you need to:
switch to the Activity tab of your Jira issue
select the "Smart Checklist History" tab
"Smart Checklist History" tab tracks these list of changes:
Changes in the Smart Checklist  | Changes in "Smart Checklist History" tab  | 
|---|---|
Adding checklist item  | 
  | 
Deleting checklist item  | 
  | 
Checklist item update  | 
  | 
Status change  | 
  | 
Checklist item movement  | 
  | 
Checklist update from full-screen editor  | 
  | 
Saved as a template  | 
  | 
Import template  | 
  | 
Edit Linked Template  | {User} edited the linked {Template name} template  | 
Rename a Linked Template  | {User} renamed the linked {Template name} template to {New Template name}  | 
User apply (Import) the Linked Template to the issue  | {User} linked the {Template name} template to the checklist  | 
Auto apply (Import) of the Linked Template to the issue  | The {Template name} template has been automatically linked  | 
Unlink/Delete the template and append items  | {User} unlinked the {Template name} template, and appended items  | 
Unlink/Delete the template and delete items  | {User} unlinked the {Template name} template, and removed items  |