odoo/documentation#7331

Created by fw-bot
Merged at 5d6eb6ed5f30f8b76be5faebb41f0f9e536fb78f

Statuses:

label
odoo-dev:saas-16.1-17.0-upgrade-3171474-hepi-hnI_-fw
head
522864db76fc4aec5d959fa2c1941b013fe40c29
merged
2 years ago by Sales, Antoine Vandevenne (anv)
odoo/documentation
16.0 #6757
saas-16.1 #7331
saas-16.2 #7332
saas-16.3 #7333
saas-16.4 #7334
17.0 #7335
18.0
saas-18.2
saas-18.3
saas-18.4
19.0
master #7336

[FW][ADD] Upgrade documentation for developers

More and more demand came from partners to have information about the upgrade process.
In this page, we intend to introduce the process we've been following at PS-tech for several year.
In the future there will be multiple pages around this one giving explanation on upgrade related topics.

Forward-Port-Of: #6757