ESP-07 are the version with 2mm pitch notches, shielded ICs, ceramic antenna, and antenna socket.
But it seems like there are two flavors, a 14-pin one, and a 16-pin one. I was lucky to get the 16-pin ones although the vendor's picture showed the 14 pins one.
The 16 pins one has ADC pin breakout too.
Another advantage is that the new ESP-07 has both side notches and tiny soldering holes so even without a backboard it is rather easy to 'integrate'
I would say that 16-pin 'new' ESP-07 will be my favourite version, given it runs for about the same price, has LEDs outside the shield (which old ESP-07 or equivalent unshielded ESP-11 do not)