Sure are tons of Windows Phone 8.1 update news everywhere but the next conference Microsoft is going to be involved will be the BUILD conference where Windows Phone 8.1 will be demonstrated.
The Stop/Refresh button is at the address bar for Internet Explorer 11 Mobile similar to the Windows 8 and desktop versions of the browser and other web browsers you're using. Back then for Internet Explorer for Windows 7 users, there were both Refresh and Stop buttons on the same bar at the same time.
Also, there's the Reading Mode where you can read articles without so much distractions as well as other settings you can make adjustment from. There will be extended support of HTML5 and WebGL and other stuffs, etc.
