Has Pokémon GO changed their distance algorithm?

I've been playing Pokémon GO for a few months now. I live in a major metropolitan area in the US, and pretty much since I started I have 4-5 PokéStop in range of me when I'm sitting in my apartment.

In the past two weeks, I got super busy and didn't log in. Today, when I logged in, all the same PokéStops are present, my avatar is in the same location, but I'm only "in range" of two of the PokéStops.

Has the algorithm Niantic uses to detect if you're in range of a PokéStop changed? Does this happen often? (I've only been playing since February, and this is the first time for me.)

I took a screenshot to demonstrate. In the below screenshot the two PokéStops highlighted in green are the only ones that I am now "in range" of. (For some reason the one on the left is out of range at the moment.) The two circled in red were previously consistently in range as well. The one in yellow was sometimes in range if there was some GPS drift.

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Did they change the distance in Pokemon Go?

Niantic announced Wednesday that it's going back on at least one of its controversial gameplay changes to Pok\xe9mon Go. The company is permanently increasing the distance you can be from the real-world locations of Pok\xe9stops and Gyms and still interact with them.

Did Pokemon Go reduced distance?

Niantic Labs has reverted recent changes made to the spin distance in Pokemon Go, allowing players to hit up PokeStops from a safer distance than what was implemented earlier this month. Now, instead of a 40-meter distance needed to spin a PokeStop, players will only need to be 80 meters aways to take a spin.

How does Pokemon Go track distance?

Pok\xe9mon Go measures distance in a straight line based on the change in GPS position. So, to get maximum distance, you should travel in a straight line too. It's believed that Pok\xe9mon Go actually records distance more frequently, though. Somewhere between one to four times a minute.

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