先前 Linux 下是 NPAPI 與 PPAPI 兩個版本都有 Flash Player，但是 NPAPI 維持在 11.2，只做安全性更新：
Linux users have access to both NPAPI and PPAPI versions of Flash Player. However, for the last four years, the NPAPI version has been held at 11.2 and regularly updated with only security fixes while the PPAPI version (used in Chrome and Chromium based browsers), is in line with the standard Windows and Mac releases.
Today we are updating the beta channel with Linux NPAPI Flash Player by moving it forward and in sync with the modern release branch (currently version 23). We have done this significant change to improve security and provide additional mitigation to the Linux community.
Flash Player 你趕快退場啊啊啊...