In Odoo11, When a field is changed by any user, It generates a log. for that I use track_visibility in field.
`audit_user = fields.Many2one('res.users', string='Audit User', track_visibility='onchange')
audit_date = fields.Datetime(string="Audit Date", track_visibility='onchange')
is_audited = fields.Boolean(string='Is Audited', track_visibility='onchange')`
That's The log is generated after any user change the data in these fields.
I can also update data of these fields using CSV Import of Odoo.
No log is generating when i changed field using CSV Import.
I want to generate a log when I change field data using CSV Import Option of Odoo.

It can be done by Method Overriding of Import function, providing you an example of custom log note generation code snippets