The next step in the project is to install and set up eZ publish on all three environments. This step requires commitment to a particular version of eZ publish. As the framework is constantly being worked on, you need to choose which version you are going to commit to.
This is not a straightforward decision. It may seem obvious to go for the latest release but that might not be the wisest decision. You need to look at the status of the more recent versions and pick the most stable to go with, whether it be latest or not.
For instance, it's probably not a good idea to base a project on a release candidate that hasn't been thoroughly tested. The release candidate might have more features but if they are buggy, they can cause problems during development. It's safer to go for a more stable release that may not have every feature, but is less likely to have bugs during development.
The only reason you would pick the very latest release is if it had a feature that was absolutely necessary for...