I’ve seen a couple of mentions of Android behaviour of the “back” button being fixed in this release, but in my case I’ve found that WhatsApp in particular sometimes has a strange new behaviour in this release. Occasionally, when reading a conversation, if I press the back button to return to the main list of conversations, WhatsApp is briefly minimised to a tile, then returns to full screen. It’s as if the app thinks I swiped to the side, then straight away realises its mistake and pops back up. It never happened before 4.6.0.13.
Anyone else notice this?