1st update
The first recruitment update is part of 1st Anniversary Celebration, which includes Operators introduced in Grani and the Knights' Treasure and alongside Episode 05, as well as 3★ Operators previously only available from headhunting with the exception of Cardigan, and THRM-EX.
In the CN server, Beehunter, Catapult, Midnight, Nightmare, and Skadi are added alongside Episode 06, while the rest follows on CN's 1st anniversary.
2nd update
The second recruitment update is part of Fan Appreciation Event, which includes Operators introduced in Heart of Surging Flame.
3rd update
The third recruitment update is part of Contingency Contract Lead Seal, which includes Operators introduced in Operational Intelligence.
4th update
The fourth recruitment update is part of A Walk in the Dust, which includes Operators introduced in Code of Brawl.
The CN server added Purestream in this update, about 1 year after Living With All where she is released in CN.
5th update
The fifth recruitment update is part of Dossoles Holiday, which includes Operators introduced alongside Episode 06 (except Broca and Reed who are introduced on Half Year Anniversary Warm-Up).
6th update
The sixth recruitment update is part of Near Light, which includes Operators introduced alongside Ancient Forge (except Nian) as well as the Justice Knight.
7th update
The seventh recruitment update is part of Invitation to Wine, which includes Operators introduced alongside Stories of Afternoon and Purestream, about 1 year and 3 months after Coexistence.
8th update
The eighth recruitment update is part of Episode 10: Shatterpoint, which includes Operators introduced alongside Contingency Contract Barrenland.
9th update
The ninth recruitment update is part of Ideal City, which includes Operators introduced alongside Darknights Memoir.
10th update
The tenth recruitment update is part of Il Siracusano, which includes Operators introduced alongside Contingency Contract Pyrite and Episode 07 (except W).
11th update
The eleventh recruitment update is part of Where Vernal Winds Will Never Blow, which includes Operators introduced alongside Children of Ursus (except Absinthe).
12th update
The twelfth recruitment update is part of Lone Trail, which includes Operators introduced alongside Twilight of Wolumonde (except Folinic) as well as Friston-3 (added during Pinch-Out Experimental Operation).
13th update
The thirteenth recruitment update is part of So Long, Adele, which includes Operators introduced alongside the reruns of Heart of Surging Flame and Grani and The Knights' Treasure.
14th update
The fourteenth recruitment update is part of Zwillingstürme im Herbst, which includes Operators introduced alongside The Great Chief Returns with the exception of Tomimi.
15th update
The fifteenth recruitment update is part of Here a People Sows (that will be the Global server's 4.5th anniversary event), which includes Operators introduced alongside Rewinding Breeze, with the exception of Mint.
16th update
The sixteenth recruitment update is part of CN server's 5th Anniversary Celebration (that will be the Global server's 2024 Fan Appreciation event), which includes operators introduced alongside Maria Nearl and PhonoR-0, with the exception of Whislash.
