This update (v2.1.1) includes:
- HTML5 support*
- Subtitels (where available from the broadcaster)
*Exceptions: Windows 7 or older with Internet Explorer will keep using Flash/Silverlight as HTML5 playback is not supported there.
Also old Firefox versions (<47) will keep using Silverlight for protected content. Even older versions (<42) also keep using Flash for in-the-clear contents.