Updated in March 2020

Many experienced film makers decry vertical and square video. The fact is, millions of people watch stories that way on their personal devices. Facebook is now not just ‘social media’ – it is ‘media.’ 20 years ago editors started to deal with other aspect ratios than 4:3. Here’s the specifications from Facebook on the various aspect ratios their platforms work with:

On November 18, 2008 Apple added this job description to their website: Video Editor Product Designer, Pro Apps Apple’s Pro Apps Design