package:grpc v4.0.0

• Set compressed flag correctly for grpc-encoding = identity. Fixes #669 (#693)
• Remove generated status codes.
• Remove dependency on package:archive.
• Move codec.dart.
• Work around hang during Flutter hot restart by adding default case handler in _GrpcWebConversionSink.add.

package:grpc v3.2.4

• Forward internal GrpcError on when throwing while sending a request.
• Add support for proxies, see #33.
• Remove canceled ServerHandlers from tracking list.
• Fix regression on fetching the remote address of a closed socket.

package:grpc v3.2.3

• Add const constructor to GrpcError fixing #606.
• Make GrpcError non-final to allow implementations.
• Only send keepalive pings on open connections.
• Fix interop tests.

package:grpc v3.2.0

• ChannelOptions now exposes connectTimeout, which is used on the
  socket connect. This is used to specify the maximum allowed time to wait
  for a connection to be established. If connectTime is longer than the system
  level timeout duration, a timeout may occur sooner than specified in
  connectTimeout. On timeout, a SocketException is thrown.
• Require Dart 2.17 or greater.
• Fix issue #51, add support for custom error handling.
• Expose client IP address to server
• Add a channelShutdownHandler argument to ClientChannel and the subclasses.
  This callback can be used to react to channel shutdown or termination.
• Export the Code protobuf enum from the grpc.dart library.
• Require Dart 3.0.0 or greater.

package:grpc v3.2.0

• ChannelOptions now exposes connectTimeout, which is used on the
  socket connect. This is used to specify the maximum allowed time to wait
  for a connection to be established. If connectTime is longer than the system
  level timeout duration, a timeout may occur sooner than specified in
  connectTimeout. On timeout, a SocketException is thrown.
• Require Dart 2.17 or greater.
• Fix issue #51, add support for custom error handling.
• Expose client IP address to server
• Add a channelShutdownHandler argument to ClientChannel and the subclasses.
  This callback can be used to react to channel shutdown or termination.
• Export the Code protobuf enum from the grpc.dart library.
• Require Dart 3.0.0 or greater.

3.1.0

• Expose a stream for connection state changes on ClientChannel to address
  #428.
  This allows users to react to state changes in the connection.
• Fix #576: set default
  :authority value for UDS connections to localhost instead of using
  UDS path. Using path triggers checks in HTTP2 servers which
  attempt to validate :authority value.

3.0.2

• Fix compilation on the Web with DDC.

3.0.1

• Require package:googleapis_auth ^1.1.0
• Fix issues #421 and #458. Validate responses according to gRPC/gRPC-Web protocol specifications: require 200 HTTP status and a supported Content-Type header to be present, as well
  as grpc-status: 0 header. When handling malformed responses make effort to translate HTTP statuses into gRPC statuses.
• Add GrpcOrGrpcWebClientChannel which uses gRPC on all platforms except web, on which it uses gRPC-web.
• GrpcError now exposes response trailers via GrpcError.trailers.

3.0.0

• Migrate library and tests to null safety.
• Require Dart 2.12 or greater.

2.9.0

• Added support for compression/decompression, which can be configured through
  ChannelOptions constructor's codecRegistry parameter or adding the
  grpc-accept-encoding to metadata parameter of CallOptions on the client
  side and codecRegistry parameter to Server on the server side.
  Outgoing rpc can be compressed using the compression parameter on the
  CallOptions.
• Fix issue #206. Prevent an
  exception to be thrown when a web connection stream is closed.
• Add XHR raw response to the GrpcError for a better debugging
  (PR #423).

Note: this is the last release supporting SDK < 2.12. Next release will
be nullsafe and thus require SDK >= 2.12.