The 17th International Conference on Stability and Oscillations of Nonlinear Control Systems (Pyatnitskiy’s Conference) was held on June 3–5, 2026. The conference was traditionally organized by the Trapeznikov Institute of Control Sciences, the Russian Academy of Sciences, with the technical cosponsorship of the Department of Power Engineering, Mechanical Engineering, Mechanics and Control Sciences, the Russian Academy of Sciences, and the Scientific Council on Control Theory and Processes. The conference featured six plenary and 117 sectional presentations by leading scholars from Armenia, Vietnam, Kyrgyzstan, Uzbekistan, and Russia. Russian participants represented research organizations and universities from 16 cities. During the conference, new results concerning various aspects of the theory of stability and nonlinear oscillations were discussed.