Salesforce allows to generate only the latest version of the various API wsdls. Sometimes we need to refer to old versions to compare or analyze etc., and in such cases it has been difficult to get hold of one. This repo is meant to store all versions of various API wsdls.
Note that we added various versions we had so create a PR if you have old version, please raise a PR.
I'm not sure what license Salesforce releases the wsdls under, so files in this repo come with whatever license Salesforce releases in. We are just trying to make them available here for easy access.