[Updated 6/1] It appears that the DSL rosters have been fully updated (see transactions in top post).
The following players were on the DSL rosters as of 5/30, but are no longer there (some may appear on another roster - GCL, NY-Penn - at some point):
Pitchers:
Arauz, Osvaldo
Betancourt, Carlos
Brazon, Jose
Estevez, Engel
Garrido, Maikel
Geraldo, Juan
Hernandez, Cristian
Marcano, Rafael
Marin, Jhoystn
Martinez, Alejandro
Martinez, Jordi
Medina, Oswald
Miranda, Juan
Morales, Efrain
Pacheco, Luis
Pina, Nicoly
Reyes, Andy
Rosario, Dalvin
Segovia, Eduar
Catchers:
Francisco, Freddy
Rodriguez, Cesar
Rodriguez, Jonathan
Infielders:
Asencio, Ryan
De La Rosa, Maximo
Dipre, Guarner
Flores, Wilfredo
Hernandez, Jevi
Smith, Juan Carlos
Outfielders:
Cedeno, Jose
Mata, Cesar
Rojas, Johan