Swimming entries don't officially appear on the World Aquatics website yet. However, anti-doping test data with all athletes in attendance have been released along with their events. There's some changes from trials.
Oliver Dawson has been entered in the 50 breast and the 200 breast but not the 100m breaststroke. At trials, he only reached the secondary standard in the 200m breast
Brooklyn Douthwright is entered in the 100 fly. Makes sense considering the two swimmers in front of her, Harvey and Jansen, both have events on the same day
Ethan Ekk is entered in the 800 free despite not swimming it at trials. He'll swim that along with the 200 back(AQUA A cut) and 400 free (secondary standard)
Ruslan Gaziev is the athlete who'll be in the 100m free. There was some debate about whether or not Liendo would still swim it since he had the A cut in the qualifying period but Gaziev did not
As expected, MSH is dropping the 100m fly (despite winning the event and trials) and swimming 4 events: 200 free, 200 breast, 200 IM, 400 IM
Finlay Knox is entered in the 100m breastdespite scratching the final at trials. This goes along with his signature 200 IM event
Josh Liendo is entered in the 50 fly despite scratching the event at trials. I believe he has the A-cut courtesy of the first 50 of his silver medal 100 fly performance. As expected, he's also entered in the 50m free and 100m fly
With Penny Oleksiak dropping out, Taylor Ruck is now entered in the 50 free and 100 free events. She'll swim 4 events along with the 100 back (A-cut) and 50 fly (secondary standard)
ANTOINE SAUVE IS SWIMMING THE INDIVIDUAL 200 FREE!!!!!
Everything else is as expected. I found the data here