odoo/documentation#7336

Created by fw-bot
Merged at 080dc64e54cea52689780f180fd372a6ac6fe9f4

Statuses:

label
odoo-dev:master-17.0-upgrade-3171474-hepi-0JbG-fw
head
392a77dd56a174c9737a8bcf9c5fadd265c1ae88
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