Build 26 was the first one made with the iOS 27 SDK, and UIKit stops apps
without the scene life cycle at launch on iOS 27 (TN3187). The scene
delegate only shows the FlutterEngine that AppDelegate starts with the
process, so a VoIP push in the background still finds the CallKit plugin
and a running Dart isolate when no scene is connected.
The local notifications plugin was initialised without iOS settings, so
flutter_local_notifications threw "iOS settings must be set" before the
app registered with Apple, and restoreMode swallowed the error. iPhones
never sent the relay an APNs token for message wake-ups or a VoIP token
for calls.
- add DarwinInitializationSettings and request iOS permission explicitly
- register with Apple before asking for notification permission (silent
wake-ups do not need it)
- send the VoIP token on its own (PLATFORM_APNS with an empty endpoint)
when no APNs token is available yet
- record a failed registration so the chat list shows it instead of
failing silently
- drop the force cast of rootViewController in AppDelegate and the unused
SceneDelegate
End-to-end encrypted calls between two contacts over WebRTC. Call
signalling (offer, answer, hang-up) travels as ordinary Signal-encrypted
messages through the relay; media is DTLS-SRTP, peer to peer when
possible and through the operator's TURN server otherwise.
- Non-trickle ICE (candidates gathered for up to 3 s), 45 s ring
timeout, busy handling, and a call log entry in the conversation.
- The system call UI rings even when the app is closed: CallKit from a
PushKit VoIP push on iOS, a full-screen incoming call from an FCM
wake-up on Android. The wake-up carries no caller; the app learns who
is calling from the queued offer once it is unlocked.
- New permissions: camera for video, audio routing and Bluetooth
headsets, network state; iOS background modes audio and voip.
Push on Android: a fresh install now picks UnifiedPush when a
distributor is installed and FCM otherwise, instead of leaving wake-ups
off. Without a wake-up Android puts the app to sleep and messages wait
until it is opened. Users can switch at any time in Settings.
Initial public release. Anonymous on-device identity (no phone number,
e-mail, or password), Signal-protocol cryptography (X3DH + PQXDH, Double
Ratchet, sealed sender) via libsignal, a metadata-minimizing relay,
group chats, disappearing messages, encrypted local storage, optional
Tor transport, and a UI localized into Czech, English, German, Russian,
and Italian.
Monorepo: Flutter client (app/), Rust relay + wire types (rust/),
protobuf definitions (proto/), self-host deploy (deploy/).
Licensed under AGPL-3.0 with an app-store distribution exception (§7).
Julius Joska