The SXFEL Upgrade: From Test Facility to User Facility oleh Bo Liu, Chao Feng, Duan Gu, Fei Gao, Haixiao Deng, Meng Zhang, Sen Sun, Si Chen, Wei Zhang, Wencheng Fang, Zhen Wang, Qiaogen Zhou, Yongbin Leng, Ming Gu, Lixin Yin, Qiang Gu, Guoping Fang, Dong Wang, Zhentang Zhao