Hi Quinn, Thanks again for the helpful explanation. I just want to double-check one key detail for my specific scenario: I submit and release an app update (e.g., version 2.0) today, under the original developer account. A few days later, I transfer the app to a different developer account. I do not submit any new update after the transfer. Some users update to version 2.0 after the transfer is complete. Given that version 2.0 was signed with the original developer account (before the transfer), will those users still be able to access the original keychain data and remain logged in?

Hello Quinn, Thanks for your reply. I'm sorry for not mentioning, it's on iOS.