I have been with my company two years working with two senior software engineers. The other engineers created the bulk of our product catalog, including 10 years worth of legacy software.
The two senior engineers have left, and since then the company has hired three new engineers. While I am technically the most senior, I still haven't had a chance to work with the legacy software, but the new hires question me about it regularly. This is difficult, because while I know more than they do, it's not that much more.
How can I determine my new role and properly adapt?