The part that isn't getting the headline on the NAEP release

 ...is what the Trump administration has done to the Department of Education. From NPR:

The official, who briefed reporters on the condition of anonymity, confirmed that the cuts to the U.S. Education Department left only two senior staffers assigned to NAEP and said that NCES relied on additional support from colleagues in other departments to get the new release out.

NCES confirmed that, in order to meet congressional testing mandates in 2026 and 2028, U.S. Education Secretary Linda McMahon has approved a waiver to add at least eight staff positions before the end of the year.

Because of cuts to the Department: 

 This spring, the NAGB slashed about a dozen planned assessments — for fourth-grade science, 12th-grade U.S. history and writing across fourth-, eighth- and 12th-graders — that were scheduled to be administered over the next seven years.