I think after 3.9.
这段经历为乔忠良积累了大规模软硬协同系统的整合经验，也让他对“通用性”有着近乎偏执的坚持：要做能底层逻辑复用的智能产品。更通俗地说，不是给每个设备单独造一个“脑子”，而是造一个通用的“大脑”，可以控制不同的硬件“身体”。
，这一点在体育直播中也有详细论述
2026-03-03 00:00:00:0本报记者 杨 迅3014317310http://paper.people.com.cn/rmrb/pc/content/202603/03/content_30143173.htmlhttp://paper.people.com.cn/rmrb/pad/content/202603/03/content_30143173.html11921 陶瓷盲盒受年轻人欢迎（新春走基层），详情可参考51吃瓜
It is possible to have zero-sized memory blocks (i.e. blocks consisting solely of an MCB header). The ALLOC function does not refuse to allocate zero-sized blocks. In addition, zero-sized blocks may be inevitably created in the course of calling other functions. For example, if an existing allocation is resized to be exactly one paragraph smaller, DOS will be forced to create precisely such a zero-sized MCB.