Adobe - Flash Player Version PenetrationAdobe stopped supporting Flash Player beginning December 31, 2020 (“EOL Date”), as previously announced in July 2017. Open standards such as HTML5, WebGL, and WebAssembly have continually matured over the years and serve as viable alternatives for Flash content. Also, major browser vendors are integrating these open standards into their browsers and deprecating most other plug-ins (like Flash Play
「Flash Player」プレビュー版公開、IE9ベータと64bit版に対応 
ジョブズCEOがiPhoneへのFlash非搭載について声明
