Flash is being replaced by HTML5.
Download the latest 2018 Creative Guidelines here.
All major browsers are transitioning away from the use of Flash, and have introduced progressively greater restrictions. Safari moved to HTML5-by-default in September 2016. Chrome will follow in version 55, released December 2016. This feature will mean the browser keeps the presence of Flash hidden, preferring to fall back on HTML content. Because most players in the wild have an HTML5 fallback or are already HTML5-first, the impact of this will be widespread.
Below is a short Guide to help the industry with the transition process and PDF slides for presentations and reports.