Yes, a hugely important discovery -- albeit not one to have invalidated what you're likely reading, rather it fills in what were empty spots in the record.

French archaeologists working at Wadi a-Jarf in Egypt discovered papyri from 2500 BCE, the reign of Khufu. This was in 2013, a stunning discovery -- one of the most important archaeological discoveries of the 21st century, certainly the most important discovery of historical material.

The chief archaeologists were Pierre Tallet and Gregory Marouard, and the discovery is described in the deceptively bland sounding article "THE HARBOR OF KHUFU on the Red Sea Coast at Wadi al-Jarf, Egypt" -- you'd be forgiven for reading that title and not realizing just what they'd found. . . papyri that are vastly older than any others yet found, and preserved well enough to read. Consider that for a moment-- we're used to cuneiform tablets surviving from 4500 years ago, but the survival of papyrus, that is a bit of luck. What we have here is sometimes referred to as the "Diary of Merer" and in part it records the kind of thing we wish we had from the ancient world, and only rarely do-- the nuts and bolts of administration, transportation and construction. In this case, it appears to be the record of an inspector supervising the transport of limestone from Tura to Giza, possibly for the construction of the Great Pyramid. That's really a "wow" moment, the kind of thing you only can dream of finding . . . "yeah I'd like to see a bill of lading with materials for the construction of the Colossus of Rhodes"; and here it is.

Smithsonian did a surprisingly good article about it, available online here: The World’s Oldest Papyrus and What It Can Tell Us About the Great Pyramids but if you want to read Tallet and company's original, see

Pierre Tallet, and Gregory Marouard. “THE HARBOR OF KHUFU on the Red Sea Coast at Wadi Al-Jarf, Egypt.” Near Eastern Archaeology, vol. 77, no. 1, 2014, pp. 4–14.