In this update its stated that:
(s2Member/s2Member Pro) JW Player (WebSharks/Private#121) Adding CSS class attribute to all JW Player template files used in conjunction with the s2Stream shortcode. New CSS class name: s2member-jwplayer-v6.
What excactly do you mean? Should this be used in the shortcode? or is it a template you can use OPTIONALLY, if you want to? Or is it something different?
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Also, I have a very relevant request for the next update.
As it is now, if you use and edit the /templates/players/jwplayer-v6.php etc and place them in the theme folder, its not being read by s2member like other customized template files are.
This means I have to remember to backup my custom jwplayer-v6.php files in the /templates dir before I upgrade, and after the upgrade I have to remember to replace them again. A bug for users, and a bug for s2member!