The support branch is maintained as a branch in our Git repository. It has the name in the form:
Where X.Y is the last minor release. The repository may be fetched by using the usual Git tools. Once you have got the repository you can switch the workspace to the support branch e.g. by using the following command:
git checkout v2.2-supportsupport-3.7
This may vary depending on the specific git tool you are using. Please refer to the documentation of your git tool for the details.