I need to see edit history of a segment.
Who edited it, what edits were made.
I am analyzing sudden and sharp drops and rises in the population size.
Please could you let me know how I can access a segment's edit and "save" history?
To check the user logs you need admin access. If you are admin user then follow the below steps to check log data:
"Admin > Logs > Usage & Access Log" from there search with "segment updated" under event search box. (see the attached screenshot)
Hope it helps