Delivery carrier settings now include an environment option to choose whether integrations use test APIs or production APIs. This helps businesses safely validate shipping carrier setups before going live, reducing the risk of real shipment or billing mistakes during testing.

This field is used in all delivery carriers to determine if they call
the test or the production API.

https://www.odoo.com/web/#id=22008&view_type=form&model=project.task&action=333&active_id=248&menu_id=4720

Delivery staff can now set or adjust a package type and shipping weight during packing or afterward. This helps carriers receive more accurate package information and centralizes packaging setup across shipping workflows.

https://www.odoo.com/web/#id=21195&view_type=form&model=project.task&action=333&active_id=248&menu_id=4720

Delivery orders no longer show the carrier's real shipping cost, helping businesses avoid exposing internal cost information to customers or warehouse documents. This keeps delivery paperwork cleaner while preserving shipping cost data for internal use where appropriate.

https://www.odoo.com/web/#id=21510&view_type=form&model=project.task&action=327&menu_id=4720

Email notifications for discussion messages now use a cleaner, simpler template with less unnecessary footer content. This makes messages easier for recipients to read and helps important discussion updates stand out.

fp request

Shipping carrier integrations now use a shared production environment setting instead of separate carrier-specific live/test switches. This makes configuration more consistent across DHL, FedEx, Temando, UPS, and USPS and helps reduce setup confusion.

Requires https://github.com/odoo/odoo/pull/10724

https://www.odoo.com/web/#id=22008&view_type=form&model=project.task&action=333&active_id=248&menu_id=4720

Delivery carriers now use a shared packaging approach for DHL, FedEx, UPS, and Temando, while USPS receives updated weight handling. This helps make shipment setup and carrier calculations more consistent across delivery services.

https://www.odoo.com/web/#id=21195&view_type=form&model=project.task&action=333&active_id=248&menu_id=4720

This PR requires https://github.com/odoo/odoo/pull/9994