Upgrade to version 16 is available for production now.

Hi.

Upgrade to version 16 is not available for the time being. I was asking this to the Odoo official, the upgrading process is depends on upgrade script which is developed by Odoo partners so they also don't know the estimated time. All i can say is it may available soon, and before the version 17 available of course

Edit : it's available started from Jan 17 2023.

Best regards,

Altela (altelasoftware.com)