The Form N-565 and Form N-336 round out the four big pieces of immigration paperwork that are now digital.

The Freedom of Information Act Immigration Records SysTem (FIRST) will allow users to submit requests and receive documents online, upgrading an old, often paper-based process.

E-Verify.gov is now the central source for all information on the government's employment eligibility tool.

USCIS says it has been working hard to fix the problems identified by the Department of Homeland Security's Office of the Inspector General.

The agency's attempt to automate the N-400, the key application for naturalization form, "has not been successful."

To supplement online inquiries and support online customers, USCIS developed a new virtual assistant to help online customers navigate uscis.gov.