[y2jman]

well on my current device droid 4 i don't really like to update alot apps i got like for example i'm still using facebook apk 3.4 can i still use that when i get either galaxy s7 or the edge or will won't work because its on marshmellow as of now

if i can't what closet facebook apk can i actually use that will still let me change top news to recent don't have to install facebook messenger

[B. Diddy]

You can always try installing that apk file on the new phone.