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IEEE 802.11bn introduces the ultra-high reliability amendment that will serve as the basis for Wi-Fi 8. Unlike previous Wi-Fi generations that focused primarily on increasing peak throughput, IEEE 802.11bn targets measurable improvements in real-world performance: a 25% throughput increase under rate-versus-range conditions, a 25% reduction in 95th-percentile latency, and a 25% decrease in packet loss probability during basic service set transitions. The amendment retains the core physical layer parameters of Wi-Fi 7 — up to 320 MHz channel bandwidth, 4096-level quadrature amplitude modulation, and eight spatial streams — while adding new physical layer capabilities such as distributed resource units and enhanced long range protocol data units, alongside advanced medium access control features including multi-access point coordination and seamless roaming within a mobility domain.