Qiskit Use current Qiskit 2.x APIs to build circuits, prepare hardware-compatible instruction set architecture (ISA) circuits, and execute them through V2 primitives. Reviewed 2026-10-01 with local tests on , , and . IBM account, QPU, session, and batch examples are illustrative and documentation/source-checked; no remote workloads were submitted. See references/sources.md for the verification boundary. Runtime 0.50 deprecates the top-level / implementations. New code imports from and from . These still implement the V2 PUB interface, using client-side processing and . Use option models from…