While modern software relies on cloud connectivity and sleek user interfaces, version 3.7.1 was a gritty, offline workhorse. It was designed for an era where internet connectivity was unreliable or strictly reserved for email. This version was prized for three specific reasons:
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Supports fixed shifts, flexible shifts, and complex rotation schedules.
This specific build targets legacy hardware. Descriptions of the software consistently state it is "适用比较老的中控考勤系统" (suitable for older ZK attendance systems). If you have a newer ZKTeco device, this version is likely incompatible. Companies still using older ZKTeco devices from the late 2000s and early 2010s are the primary users who might need this specific legacy software.