In a 10 June 2025 blog post, IBM details a step-by-step plan to deliver “Quantum Starling,” a 200-logical-qubit, 100-million-gate machine by 2029, housed in a new Poughkeepsie data center. Two new research papers outline an architecture based on low-density parity-check (qLDPC) codes and a fast hardware decoder that cuts error-correction overhead 5–10×. Interim chips—Loon (2025), Kookaburra (2026), Cockatoo (2027)—will demonstrate the modular building blocks needed. IBM expects smaller-scale “quantum advantage” to appear by 2026, urging developers to start porting algorithms now