CDN-41 started A/B testing using Cloudflare rather than my own homegrown CDN for video segment delivery.
In order to support that, a change was made to the embed code in order to reference a Cloudflare handled domain rather than videos.bentasker.co.uk.
The releases v0.16 and v0.16.1 relate to this (the latter being a minor bugfix to correct the domain in the injected microdata).
However, that A/B test has now concluded, and as Cloudflare's offering didn't meet the acceptance criteria, the earlier changes have been removed in release v0.16.2
Relevant commits are