Release 1.9.0

API Changes

• grpc: fix deprecation comments to conform to standard (#1691)
• Add comments to ClientConn/SubConn interfaces to indicate new methods may be added (#1680)

Behavior Changes

• client: backoff before reconnecting if an HTTP2 server preface was not received (#1648)

New Features

• status: add Code convenience function (#1754)
• Add WithResolverUserOptions for custom resolver build options (#1711)
• Add dial option to set balancer (#1697)
• Switch balancer to grpclb when at least one address is grpclb address (#1692)
• Re-resolve target when one connection becomes TransientFailure (#1679)

Performance Improvements

• protoCodec: avoid buffer allocations if proto.Marshaler/Unmarshaler (#1689)

Bug Fixes

• server: fix race between GracefulStop and new incoming connections (#1745)
• After sending second goaway close conn if idle. (#1736)
• In graceful stop close server transport only after flushing status of the last stream. (#1734)
• client: fix race between server response and stream context cancellation (#1729)
• use the request context with net/http handler (#1696)
• Eliminate data race in ccBalancerWrapper (#1688)
• transport: fix race sending RPC status that could lead to a panic (#1687)
• Fix panics on balancer and resolver updates (#1684)

Documentation

• Fix grpc basics link in route_guide example (#1713)
• Fix misleading default resolver scheme comments (#1703)

Release 1.7.5

Release 1.7.5 adds a new empty package grpc_lb_v1 to make godep work with older versions of gRPC. There's no other bug fix or change included.

• Add doc.go to grpc_lb_v1 to work around godep bug (#1747)

Release 1.8.2

Release 1.8.1 was accidentally tagged on the master branch and will be deleted. Please update to 1.8.2 instead.

Release notes:

• transport: fix race sending RPC status that could lead to a panic (#1687)

Release 1.7.4

• transport: fix race sending RPC status that could lead to a panic (#1687)

Release 1.8.0

Dependencies

• Re-add support for Go1.6 (#1603)

API Changes

• Add functions to ClientConn so it satisfies an interface for generated code (#1599)

Behavior Changes

• ClientHandshake should get the dialing endpoint as the authority (#1607)

New Features

• Switch balancer based on service config info (#1670)
• server: apply deadline to new connections until all handshaking is completed (#1646)
• Implement transparent retries for gRFC A6 (#1597)
• Get method string from stream (#1588)
• Register and use default balancers and resolvers (#1551)
• Make passthrough resolver the default instead of dns (#1606)
• Parse ServiceConfig JSON string (#1515)

Performance Improvements

• Speed-up quota pools. (#1636)
• Acquire all stream related quota and cache it locally since no more than one write can happen in parallel on stream (#1614)

Bug Fixes

• Add proper support for 'identity' encoding type (#1664)
• Remove self-imposed limit on max concurrent streams if the server doesn't impose any. (#1624)
• Fix parseTarget for unix socket address without scheme (#1611)
• Fix connectivity state transitions when dialing (#1596)
• Update go_package declarations (#1593)
• Eliminate race on ac.acbw (#1666)
• addrConn: set ac.state to TransientFailure upon non-temporary errors (#1657)
• Check ac state shutdown before setting it to TransientFailure (#1643)
• Fix settings ack race (#1630)
• Cap max msg size to min(max_int, max_uint32) (#1598)
• Fix max msg size type issues on different arch (#1623)
• Serve() should not return error on Stop() or GracefulStop() (#1485)

Documentation

• Create versioning and release policy document (#1583)
• Corrected documentation on Server.Serve (#1668)
• Update picker doc when returned SubConn is not ready (#1659)
• balancer: reduce chattiness (#1608)
• Update fail fast documentation to remove retry language (#1586)

Release 1.7.3

• addrConn: set ac.state to TransientFailure upon non-temporary errors (#1657)
• addrConn: eliminate race on ac.acbw (#1665)
• server: apply deadline to new connections until all handshaking is completed (#1646)
• latency: Listen on localhost:0 instead of :0 in test (#1640)

Release 1.7.2

• Check ac state shutdown before setting it to TransientFailure (#1643)

Release 1.7.1

• Fix connectivity state transitions when dialing #1596

Release 1.7.0

Dependencies

• Remove Go1.6 support (#1492)

API Changes

• Add new Resolver and Balancer APIs (gRFC L9) (#1408)
• New implementation of roundrobin and pickfirst (#1506)

Behavior Changes

• Truncate payload trace string, and turn trace off by default (#1509)

New Features

• Make IO Buffer size configurable. (#1544)
• DNS with new API (#1513)

Performance Improvements

• Use the same hpack encoder on a transport and share it between RPCs. (#1536)

Bug Fixes

• transport: fix racey send to writes channel in WriteStatus (#1546)
• Use Type() method for OAuth tokens instead of accessing TokenType field. (#1537)
• Dedicated goroutine for writing. (#1498)

Documentation

• Update UnknownServiceHandler comment to be clearer about interceptor behavior (#1566)

Release 1.6.0

API Changes

• Add and use connectivity package for states (#1430)
• metadata: Remove NewContext and FromContext for gRFC L7 (#1392)
• Remove expiration_interval from grpclb message (#1477)

Features

• Add status details support to server HTTP handler (#1438)
• stats: add methods to allow setting grpc-trace-bin and grpc-tags-bin headers (#1404)
• Expose ConnectivityState of a ClientConn. (#1385)
• DNS resolver (#1300)

Performance

• Put *gzip.Writer back to pool (#1441)
• Remove defer funtion in recvBufferReader Read method (#1031)

Bug fixes

• When sending a non heads-up goaway close the connection if there are no active streams. (#1474)
• Fix grpclb protos to not cause re-registration of types (#1466)
• transport: fix handling of InTapHandle's returned context (#1461)
• transport: Fix deadlock in client keepalive. (#1460)
• Deduplicate dns record in lookup (#1454)
• Fix host string passed to PerRPCCredentials (#1433)
• Fix a goroutine leak in DialContext (#1424)
• Set peer before sending request (#1423)
• Don't use 64-bit integers with atomic. (#1411)
• Automatic WriteStatus for RecvMsg/SendMsg error on server side (#1409)
• Server should send 2 goaway messages to gracefully shutdown the connection. (#1403)
• Enabling client process multiple GoAways (#1393)
• addrConn: change address to slice of address (#1376)
• Do not create new addrConn when connection error happens (#1369)
• Validate send quota again after acquiring writable channel (#1367)

Documentation

• add comment for the package in benchmark/benchmain/main.go (#1464)
• Add -u to installation command (#1451)
• Update ServerInHandle comments (#1437)
• Add 'experimental' note to ServeHTTP godoc (#1429)
• Use NewOutgoingContext in the metadata doc (#1425)
• Fix missing and wrong license (#1422)
• Change comment on stats.End.Error (#1418)
• Document Server.ServeHTTP (#1406)
• Use log instead of grpclog in routeguide example (#1395)
• Add doc in default implementation fatal functions on os.Exit() (#1365)

Testing

• Check "x/net/context" with go vet like "context" (#1490)
• Remove unnecessary function handleStreamSuspension (#1468)
• Call cancel function to avoid ctx leak (#1465)
• go-generate pb.go files and check in Travis to make sure they don't change (#1426)
• Add flags for tls file path (#1419)
• Call cancel on contexts in tests (#1412)
• benchmark: don't stop timer until after workers are done (#1407)
• Assign testdata path to correct variable (#1397)
• Do not call testdata.Path when defining flags (#1394)
• Fix bufconn.Close to not be blocking. (#1377)
• benchmark: add benchmain/main.go to run benchmark with flag set (#1352)
• benchmark: remove multi-layer for loop (#1339)
• Add testdata package and unify testdata to only one dir (#1297)