Is there an experience reward when the Pokémon you're trying to capture escapes?

I've been lately noticing I've gained some experience when a Pokémon escapes from an encounter. It's only happened a couple of times, so I cannot be sure if it is due to the escaping or other things.

So, does this experience reward exist and how much is it? Is it something new? I don't remember noticing something like that before.

This has always been the case, but it only just now gets displayed.

You get 25 experience when a Pokémon escapes from you.

If you want a source, here is one (dated July 24th).

I learned this today when I had 74,999/75,000 exp for level 22 and I found a pokemon that fled. I then immediately leveled up and had 24 xp.