Android only installs an update signed by the same key as the version already on your device. This timeline shows every signing key we've seen for Talkatone: Texting & Calling. One known signing key across every release we hold.
10.4.2
Current key1 release · Jul 28, 2026Every key we have ever recorded for Talkatone: Texting & Calling. New builds are compared against this set; a build signed by none of them is what our badge calls a mismatch.
Dingtone Phone · Communication