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In the recipe, we downloaded the latest stable version of Odoo using the following command:

$ git clone -b 11.0 --single-branch https://github.com/odoo/odoo.git

This uses the official branch maintained by Odoo. One issue with this branch is that bug fixes contributed by the community are not always merged in a timely fashion. The Odoo Community Association (OCA) maintains a parallel branch in which fixes and improvements are peer-reviewed by the community and tend to be merged faster than on the official branch. It is not a fork of Odoo, and the latest version of Odoo is merged back into that branch daily. You may want to use it for your developments and deployments, in which case you need to clone Odoo like this:

$ git clone -b 11.0 --single-branch https://github.com/OCA/OCB.git odoo