We cordially invite you to the 15th General Assembly of the Quantum Software Consortium (QSC), to be held in Delft on 7 May 2026. The scientific programme will be composed by Tim Coopmans (QuTech, TU Delft) and Jonas Helsen (QuSoft, CWI). A variety of presentations will cover topics ranging from mathematics and cryptography to quantum information and experimental quantum optics.