Changes to Camera Settings in Go App?

[itsdotcom]

I'm sure its not me, but the settings in the Go App seem to have changed in the last few days. I noticed a small "m" has appeared on the 3 slider lines icon for selecting the manual settings. When you select manual settings a new box has appeared at the top of the manual settings area with a slider offering "P" on the left and "M" on the right. I've no idea what these do. Also I have viewed tutorial videos which show I can choose how long I can review a still image after pressing the shutter, yet in my version there seems no sign of it. Can anyone shed any light on these issues?

 

[Alan NZ]

Seen it too just tonight but no idea.
Maybe m for manual setting??

 

[itsdotcom]

Yes that's what I presumed. It was also the appearance of the other options, "P or M" that has me foxed. Program? Manual? Anyone else seen it?