Kensington Pkwy no longer splits here. https://www.montgomerycountymd.gov/dot-dte/projects/beachdrivebridge/index.html

Draw a lower segment for N Abingdon St from the intersection 45* SE to a dead end and add house numbers 497, 493 489, 492

Redraw N Carlin Springs #s 4610, 4704 and add 4708, 4712

Add a left turn segment for southbound N Carlin Springs Rd to connect to existing ramp to southbound N George Mason Dr

part of this road is divided, bike lane, maxspeed 25 mph school zone when flashing

This OSM note is added as per the user feedback from Mapbox:
Is this where “Higher Logic” is located? Can someone please confirm the same?
Thank you.

Missing ART bus stops on Spout Run Parkway - both sides of street. Also the pedestrian walkway across Spout Run looks like a street here.

Here is a small grocery store / deli: Atrium Cafe

New 3-story house built on lot south of 2330 N. Glebe Rd., beginning ca. July 2015.

Unable to answer "What is the name of this pedestrian street?" for https://osm.org/way/772821306 via StreetComplete 17.3:

its just a pedestrian bridge.

Sanctuary
Main (Upper) Parking Lot

This foot path is in the incorrect location, no runners use this path, and it crosses private property for most of its length (and even goes through buildings). I don't see any evidence it even exists. I'm not sure if I should remove it or not: I'm not sure how to repair its position.