The QMSR, FDA's Quality Management System Regulation, replaced the Quality System Regulation for medical devices on February 2, 2026. This guide covers what changed in day-to-day practice: the new names for design, device and batch records, management review and audit reports that investigators can now read, Compliance Program 7382.850 in place of QSIT, and what a device team should do now. It adds Atlas data on the first months: 349 device Form 483s from 131 investigators, the January 2026 inspection dip, and the wording FDA uses on management review and internal audit citations.