It's hard to remember one aspect of a popular mobile game that's caused as much hand-wringing as the 'Nearby' tab in Pokemon GO. Just in case you're one of the (very) few people who hasn't played the game or followed its coverage, the tab was supposed to offer a way for players to have an easy reference for which Pokemon were nearby and approximately how far away they were.
The phrase "supposed to" is the key there. It never functioned as intended thanks to what gamers dubbed the "three-step glitch," causing all the Pokemon to appear as if they were an equal distance from the player. Instead of fixing it, Niantic deactivated the feature altogether in one of the game's first updates, causing a predictable overreaction from some of the more passionate Pokemon GO enthusiasts.
The thing is, they had a bit of a point, in the sense that when paired with Niantic cutting off support for third-party tracking apps, gamers were left without a way to even know which Pokemon were around, much less hunt them down. The latest Pokemon GO update doesn't offer a fix, but it does provide a roadmap for how the developers might proceed.