Sequencing Batch Reactors (SBRs) have been widely applied for municipal and industrial wastewater treatment due to their operational flexibility and inherent robustness. This paper presents a modern interpretation of the SBR process that combines the advantages of batch operation with continuous inflow conditions through a continuous, cyclic, cascaded reactor configuration. By maintaining constant boundary conditions and minimizing hydraulic disturbances, the process achieves stable operation, high treatment performance, and a reduced overall plant footprint. The process is based on a decoupled mixing and aeration system that enables independent control of mixing and oxygen transfer. This configuration allows effective mixing under non-aerated conditions as well as simultaneous mixing and aeration without headloss or fouling. High oxygen transfer efficiency (α-value) is maintained under process conditions, and consistent reactor hydraulics are preserved over time, overcoming performance degradation commonly associated with conventional membrane aeration systems. The applied flow patterns provide sufficient shear stress for biomass control while avoiding excessive floc breakup, which is one way the system is suitable for creating aerobic granular sludge. The reactor is divided into multiple spatial zones arranged in series within a single basin. Individual zones are hydraulically separated by a "virtual wall" effect generated through localized mixing and aeration, resulting in a cascaded reactor system. This arrangement enables different redox conditions and process functions to occur simultaneously within the same cycle. Continuous inflow is maintained throughout all operational phases, eliminating the need for upstream equalization tanks and improving hydraulic efficiency. The SBR process operates through five repeating phases-Fill/Mix, Fill/Mix/Aerate, Fill/Degas, Fill/Settle/Slow Mix, and Fill/Decant/Slow Mix-distributed across four spatial zones. Anaerobic, anoxic, and aerobic conditions are selectively established both temporally and spatially. This enables efficient carbon utilization, enhanced biological phosphorus removal, nitrification and denitrification, and the controlled formation and maintenance of aerobic granular sludge under continuous-flow conditions. A dedicated degassing phase improves sludge settleability and prevents flotation caused by entrapped gas, while low-shear mixing during settling maintains a stable sludge blanket. The overall system integrates inflow distribution, effluent withdrawal, excess sludge removal, high-efficiency air supply, and automated process control. Modular reactor design allows scalable plant configurations with increased operational flexibility and redundancy. Reactor and process design are supported by fluid mechanical analysis, computational fluid dynamics, and dynamic process simulation to optimize mass transfer, reactor behavior, energy consumption, and performance under variable loading conditions. Operational experience indicates that this continuous, cyclic, cascaded SBR configuration provides high effluent quality, improved energy efficiency, and compact plant layouts while retaining the operational stability traditionally associated with batch systems. The paper will include case studies from existing municipal facilities to illustrate design considerations, operational settings, and observed performance, and will also reference a new installation in Springfield, Tennessee that is currently under construction as an example of ongoing implementation and scale-up. The presented approach using granular and heterotrophic sludge demonstrates how advances in fluid mechanical design and process integration can extend the applicability of SBR technology beyond conventional batch operation.