6/6 UPDATE:
The Cubs have sent LHP Conner Menez outright to AAA Iowa. As an Article XX-D player, Menez had the right to elect free-agency, or defer free-agency until after the conclusion of the MLB regular season (if he isn't added back to the 40 in the meantime). He accepted the outright assignment and deferred free-agency.
+++++++++++++++++++ The Cubs have selected the contract of RHP Caleb Kilian, and RHP Roberrt Gsellman has been sent outright to AAA Iowa. As an Article XIX-A player, Gsellman had the right to refuse an outright assignment and demand his outright release, but he accepted the outright assignment and now will have the opportunity to elect free-agency after the conclusion of the MLB regular season (if he isn't added back to the 40 in the meantime).
6/4 UPDATE: