What should someone do if they move to a new address while an immigration application is pending with USCIS, and why is it important to update this information promptly?

If an applicant moves while a USCIS case is pending, they are generally required to notify USCIS of their new address within ten days. This can usually be done online through the USCIS change-of-address system or by filing Form AR-11. Updating the address ensures that important notices such as interview appointments, biometrics appointments, or requests for evidence are sent to the correct location.