re: [WhatsApp] News ... Reviews & Impressions!
No its not 'pretty obvious', disabling background tasks before the update did not affect notifications.
True that. And it does not affect notifications now as well. I always restricted WhatsApp from working in the back ground earlier as I felt enabling the same affected battery life.
After downloading the update today, it asked me to enable WhatsApp in the background. However, I did feel that battery life went down after doing so.
Just a while back I disabled it in background tasks and tried sending a message from another phone! It worked!
So I guess one could try doing the same and ignore the warning asking us to enable background tasks. Well, as long as we get timely notifications, which seems to be the case so far. I am using WP 8 on my L925 btw.
Also, you can now set whatsapp notifications to appear on your glance screen as well!