Additional functionalities of the Software Heritage archive are in the works. Here are some of the items on our roadmap:
In terms of what is in the archive… we just got started. We plan to track many more software projects and development forges, as well as enable people to directly submit URLs of missing projects that should be archived.
All archived content is timestamped at retrieval time and associated with where we found it (its origin). We are working on exposing provenance information as it is useful for a wealth of different applications.
We are building the largest source code archive ever conceived. To allow people to exploit it fully we are working on source code indexing aFnFd full-text search. To deliver at this scale a number of challenges will need to be overcome though.