Luo, H. Gu, D. Liu, T. Wang, Z. Zhang, K.Q. Upgrades of High Level Applications at Shanghai Soft X-Ray FEL Facility JACoW Publishing Geneva, Switzerland 2673-7035 978-3-95450-224-0 10.18429/JACoW-FLS2023-WE4P12 English 171-173 FEL electron feedback MMI laser Contribution to a conference proceedings 2024 2024-01 https://doi.org/10.18429/JACoW-FLS2023-WE4P12 http://jacow.org/fls2023/papers/we4p12.pdf The Shanghai soft X-ray free-electron laser(SXFEL) facility has made significant progress in recent years with the rapid, upgraded iterations of the high level software, including but not limited to energy matching, orbit feedback and load, beam optimization, etc. These tools are key components in operation and experiment of free electron laser facility. Some key applications are presented in this paper.