Git repository changes
With the upcoming release of Swiftmailer 4.1.0, I’ve changed the way the Git repository is managed. The master branch becomes the main development branch where new features are added (right now, it is equivalent to the 4.1 branch, but it is where new features will be added for the 4.2 version). The 4.0 branch is a new branch to manage the maintenance of the 4.0 version and 4.1 remains the maintenance branch for the 4.1 version.
