The route separates from NY 23 south of Hudson and rejoins its parent east of the village in Claverack.

In 1927, all of NY 10 south of Albany was replaced by the newly assigned US 9W.

After passing through the village of Franklin, it ends at NY 28 south of Oneonta.

The portion of what is now NY 26 south of US 20 was unnumbered prior to 1930.

NY 227 was truncated to its junction with NY 79 south of Reynoldsville at this time.

The segment of NY 481 south of Fulton follows a newer facility that was built in the 1970s.

It is located on NY 17 south of the village.

The route followed what is now NY 26 south of Rome (via James Street) and its modern alignment north of the city.

One block from this point is Clover Street, which carries NY 65 south of East Avenue.

NY 77, meanwhile, continues due north on the path set by NY 98 south of this point.