Tweak poorly aligned bridge for Old State Highway 21 in Jefferson County, Missouri, and add other name forms in alt_name. These other name forms should be propagated throughout the route (e.g. Highway, State Highway, State Route, State Highway, etc).

Add two highway=stop and one highway=give_way along Missouri supplemental route M in Jefferson County.

Change operator and operator:wikidata of a power line from "Ameren" to "Ameren Missouri". The former is a holding company whereas the latter subsidiary is the actual utility company.

Add highway=give_way on a short link road connecting two directions of Missouri supplemental route M in Jefferson County.

Add highway=give_way on a short link road connecting two directions of Missouri supplemental route M in Jefferson County.

Tag Green Gate Farms. I added an address point and some nearby buildings.

Improve alignment of Schluersburg Road in unincorporated St. Charles County, and add a missing bridge.

Change operator of Ameren's Mason Substation from "Ameren" to "Ameren Missouri". The former is a holding company whereas the latter is the utility (same legal entity as the Union Electric Company). Each has separate Wikidata entries.

Typo fix: "Bseball" -> "Baseball"

Tag St. Vincent de Paul Thrift Outlet in Cool Valley, Missouri.

Springdale Park in unincorporated Rock Township, Jefferson County, Missouri, has long been demolished. The swimming pool became a dumping area for local dirt, rock, and construction debris, so I'm tagging it as brownfield.

South Old Highway 141 alignment north of Romaine Creek Road.

Add missing link roads, stops, and turn restrictions at the intersection of Romaine Creek Road, South Old Highway 141, and Schneider Drive in unincorporated Rock Township, Jefferson County, Missouri.

Tenbrook Industrial Park flows onto the Metal Container Corporation campus.

It's weird, but a small segment of road aligned with Arnold Tenbrook Road is officially called Tenbrook Industrial Park. I just flipped around name= and alt_name= for this segment since I already had TIP in alt_name a few months ago. This is in Arnold, MO

Tag Browning Parts in Arnold, MO.

Tag Custom Compounders in Arnold, MO, industrial park.

Tag Warren Sign in Arnold, MO, and update Metal Container Corporation with industrial= tag.

Tag Metal Container Corporation in Arnold, MO.

Alignment of Arnold Tenbrook Road and addition of Intagliata Drive in Arnold, MO.