The SLS rocket and Orion capsule for the Artemis II mission to loop around the moon are stacked in the Vehicle Assembly Building at the Kennedy Space Center. Depending on where I look, the date can move around, and while being stacked doesn't necessarily mean it's ready to roll to the pad (39B) or that it's going to remain fully stacked, my guess is the funny date disagreement is probably due to a typo or "write-o" on somebody's notes.
The important part is that the launch window for this mission opens No Earlier Than Feb. 5, 2026 at 8:09 PM which is just over two months from now. NASA's news on that adds "no later than April" of next year.
NASA’s Orion spacecraft, complete with its launch abort system escape tower, is now integrated with the SLS (Space Launch System) rocket in the Vehicle Assembly Building (VAB) at the agency’s Kennedy Space Center in Florida. Following Orion stacking, teams completed testing critical communications systems between SLS and Orion, and confirmed the interfaces function properly between the rocket, Orion, and the ground systems, including end-to-end testing with the Near Space Network and Deep Space Network, which aid in communications and navigation.
“NASA remains focused on getting ready to safely fly four astronauts around the Moon and back,” said acting NASA Administrator Sean Duffy. “Our mission will lay the groundwork for future missions to the lunar surface and to Mars.”
Naturally, there are many tests coming between now and its launch to the moon. The vehicle will have to be rolled out to the pad, so they point out many of these tests can be done with the SLS/Orion stack still inside the VAB. This list from Exploration Ground Systems is a good starting point.
A matrix of tests to be completed before launch in February.
In the big picture sense, this is another milestone on the way to launch. In one sense, it's "just another" milestone; from another viewpoint, it's important but they're all important.