BigBlueButton 0.63 was released as early as January 25 this year. In addition to fixing some bugs, this version, code named "Red Dot", also contains many new functions: it provides an API for third-party software integration, which can easily create and join conferences; Localization support, which can be seen on the latest demo station; Support more document formats than PDF for online presentation, including PPT, DOC, XLS, TXT, etc; The document demonstration function is improved, and the Mate framework is used for reconstruction; Improved the stability of VoIP; More detailed tutorials. All these improvements are of great concern to us