The Cybrosys answer explains how you can do this with development.

If that's not possible, there is another approach with a computed field.  It's slightly easier if you have Studio, but that's not essential.  

This tracks the delivery address on a sales order

1. Create a new text field
2. Set dependencies to be the fields to be tracked
3. Add Python code to write a log to the new text field

for record in self:
     if record['partner_shipping_id']:
         record['x_studio_history'] = record.name + ' / Delivery address: ' + record.partner_shipping_id.name

Fuller explanation here: https://odootricks.tips/tracking-existing-fields-using-odoo-studio/

It's not the most elegant solution, but it does work!

Hi,

To track the changes you can add the attribute tracking=True 

in the field example:

state = fields.Selection(string='Status',  tracking=True, selection=[
            ('open', 'New'),
            ('posted', 'Processing'),
            ('confirm', 'Validated'),
        ])

Hope it helps