v0.51.1

- AppExpiry and DeviceDeregistered errors are now properly reported on
  connect; previously the types were exposed but would never be
  created in practice. If this sounds like a duplicate release note,
  well, the v0.51.0 implementation wasn't quite right!

- Node: The node module file is now named
  @signalapp+libsignal-client.node instead of node.napi.node.
  The directory structure for prebuilds remains the same.

- Updated rustc, cargo-about, curve25519-dalek

v0.51.0

- Java: Logging is no longer automatically initialized; clients must
  call SignalProtocolLoggerProvider.initializeLogging() in addition to
  setting a provider.

- Node: Expose ChatListener.

- Swift: ChatListener gained a chatServiceConnectionWasInterrupted
  callback.

- Rust: libsignal-net's ServerRequest enum has been renamed to
  ServerEvent and now includes a "Stopped" event.

- AppExpiry and DeviceDeregistered errors are now properly reported on
  connect; previously the types were exposed but would never be
  created in practice.

- The jars created for libsignal-client and libsignal-server no longer
  preserve timestamps, to make builds byte-for-byte reproducible
  rather than just equivalent.

- Further updates to the backup validator.

- attest: remove obsolete CDSI mrenclave

v0.50.0

- Treat HTTP 4xx errors as fatal for SVR connections. In Java, these
  result in a new NetworkProtocolException, distinct from the
  NetworkException that represents a potentially-transient error.

- Java: Fix missing AttestationFailedException in throws clauses

- Update backup validation

- net: Back off DNS requests like we do for the main connection

- net: Chat responses that come in just before the connection is
  closed won't be dropped as aggressively.

v0.49.0

- Support production SVR3 enclaves (includes breaking Rust API changes)
- Updated backup proto definitions + tests
- Updated rust dependencies

v0.48.0

Node:
- Support cancellation of running futures.

Net:
- Improve logging for websocket connection failures.
- Consolidate timeouts.
- Add errors for app expiration and device deregistration.

Misc:
- Update message backup proto definition.

v0.47.0

SVR3:
- Report tries_remaining value to the clients
- Implement remove function
- Support new staging enclaves

Java:
- Fix class loading issue with GraalVM
- Make `ECPrivateKey#<init>(byte[])` public
- Check for invalid key sizes more thoroughly in ECPublicKey
  - Requires auditing existing call sites

Swift:
- Expose LibsignalLogger protocol rather than depending on DDLog
  - Clients need to register the logger explicitly
- Expose cancellation
- Expose experimental ChatListener

Net:
- Remove timeout for multi-route connection manager

v0.46.2

- net: Fix regression in TLS verification introduced in v0.46.1
  (every non-Signal certificate would fail *except* on Linux)

- Rust: net's DnsResolver has a useful Default implementation again

v0.46.1

- net: Expose authenticated sends on ChatService. (Note that there is
  yet no way to get messages *from* the server.)

- net: Setting an invalid proxy from Java/Swift/TypeScript will now
  result in all connections failing until it's cleared or replaced.

- net: Many internal improvements, including
  - DNS lookups will fall back to DNS-over-HTTPS to Cloudflare
  - Connection requests are debounced
  - TLS verification will now succeed on Linux for non-Signal servers

v0.46.0

- Net now requires a user agent string on initialization.

- Restores ProfileKeyCredentialPresentationV1, removed in v0.43.0.
  While this is no longer presented by clients, it can still appear
  in old gv2 change actions.

- ServiceId is now Comparable in Java and Swift, Ord in Rust.
  In JavaScript, ServiceId.comparator provides the same ordering.
  The order is consistent across all platforms.

- Swift: The message backup stream factory function can now throw.

- Rust: libsignal-protocol timestamps now use a strong type.

- The LibSignalClient podspec is now compatible with GNU ln as well as
  macOS's standard BSD ln.

v0.45.1

Network:
- Improved logging
- Replaced rustls-native-certs with rustls-platform-verifier

Swift:
- Use thin LTO even in debug builds
- C functions with no arguments are declared '(void)', not '()'