Please don't use 1.17.0. Wait for 1.17.1.

We discovered an issue
<https://github.com/grpc/grpc-java/issues/4602#issuecomment-401422703> with
the gRPC LB handling that was not resolved before SRV lookup was enabled.
Clients using 1.17.0 without the grpc-grpclb dependency would break when a
service enables gRPC LB, even if there are fallback addresses.

We will either fix the issue or disable SRV, and then release a 1.17.1.

On Wed, Dec 5, 2018 at 4:27 PM 'Jihun Cho' via grpc.io <
[email protected]> wrote:

> gRPC Java 1.17.0 is released and available on Maven Central. JCenter
> hasn't picked up the new binary yet, but it should be available shortly.
> You can also view the up-to-date notes on
> https://github.com/grpc/grpc-java/releases/tag/v1.17.0.
> Known Issues
>
>    - Bazel apps lacking a (transitive) dependency on
>    @io_grpc_grpc_java//core:util will fail at runtime. See detail /
>    workaround <https://github.com/grpc/grpc-java/issues/5114> for more
>    detail
>
> Dependencies
>
>    - Updated to OpenCensus version to 0.17.0
>    - Updated to Error Prone to 2.3.2
>
> Bug Fixes
>
>    - Bazel build warning "unknown enum constant" is fixed (#5047
>    <https://github.com/grpc/grpc-java/pull/5047>)
>    - core: Add missing synchronization in KeepAliveManager which fixes a
>    crash caused by a race (#5096
>    <https://github.com/grpc/grpc-java/issues/5096>). This fixes the
>    “IllegalStateException: There should be no outstanding pingFuture” 
> exception
>
> New Features
>
>    - core: added service-loader-based
>    LoadBalancerProvider/LoadBalancerRegistry. Providers are to be accessed by
>    policy name through the registry. (#4996
>    <https://github.com/grpc/grpc-java/pull/4996>)
>    - core: LoadBalancer now exposes ChannelLogger for logging information
>    into ChannelTrace (#5024 <https://github.com/grpc/grpc-java/pull/5024>)
>    - core: Add maxInboundMetadataSize() to ManagedChannelBuilder and
>    ServerBuilder (#4897 <https://github.com/grpc/grpc-java/pull/4897>).
>    It is now also implemented by the inprocess and okhttp transports
>    - okhttp: flow control window size is configurable via
>    OkHttpChannelBuilder.flowControlWindow() (#4959
>    <https://github.com/grpc/grpc-java/pull/4959>)
>    - services: implemented the stream-based “Watch” method of
>    health-checking service (#4930
>    <https://github.com/grpc/grpc-java/pull/4930>)
>    - services: implemented client-side health-checking (
>    
> https://github.com/grpc/proposal/blob/master/A17-client-side-health-checking.md).
>    This issues health check RPCs from the client to avoid unhealthy backends
>       - HealthCheckingLoadBalancerUtil can be used to enable
>       health-checking on custom LoadBalancer implementations.
>       - The “round_robin” balancer, when accessed through
>       LoadBalancerRegistry, will have health-checking enabled if the 
> application
>       has a runtime dependency on “grpc-services”.
>
> API Changes
>
>    - core: Change CallCredentials.MetadataApplier from an abstract class
>    back to an interface, as it was in 1.15.x. Introduce a new
>    CallCredentials2.MetadataApplier that is an abstract class, instead.
>    This is ABI incompatible with 1.16.0 but ABI compatible with 1.15.x and
>    1.16.1 (#5007 <https://github.com/grpc/grpc-java/pull/5007>)
>    - core: LoadBalancer.Helper.runSerialized() is deprecated in favor of
>    newly introduced getSerializationContext().
>    - core/grpclb: deprecated all stock LoadBalancerFactory
>    implementations in favor of service-loader-based
>    LoadBalancerProvider/LoadBalancerRegistry. Instead of referencing
>    RoundRobinLoadBalancerFactory and GrpclbLoadBalancerFactory directly,
>    applications should access providers by their policy names, such as
>    “round_robin” and “grpclb”.(#4996
>    <https://github.com/grpc/grpc-java/pull/4996>).
>    - core: mark convenience overloads in LoadBalancer.Helper and
>    Subchannel as final, as there is no purpose in overriding them. (#4954
>    <https://github.com/grpc/grpc-java/pull/4954>)
>    - core: Improved documentation of ManagedChannelBuilder.intercept's
>    execution order
>    - netty: NettyChannelBuilder.maxMessageSize() is removed in favor of
>    maxInboundMessageSize() (#5054
>    <https://github.com/grpc/grpc-java/pull/5054>)
>
> API Stabilization
>
>    - services: V1alpha binlog is removed in favor of v1 (#4963
>    <https://github.com/grpc/grpc-java/pull/4963>)
>
> Behavior Changes
>
>    - core: Enabling retry will automatically disable census. Note that
>    this behavior is still subject to change in future releases as a design is
>    needed. (#4941 <https://github.com/grpc/grpc-java/pull/4941>) Comments
>    <https://github.com/grpc/grpc-java/issues/3982> are welcome
>    - core: SRV records are now queried by default when doing DNS lookups.
>    SRV lookups are avoided for localhost and literal IP addresses. SRV is not
>    looked up when running on Android
>    - core: Trim trailing dot from SRV hostnames (#5006
>    <https://github.com/grpc/grpc-java/pull/5006>)
>    - all: Now grpc java library emits binary metadata without padding in
>    its base64 encoding (previously with padding). grpc library still supports
>    receiving both padded and unpadded binary metadata (#5037
>    <https://github.com/grpc/grpc-java/pull/5037>)
>    - okhttp: Pending data uses less memory by merging buffers (#5023
>    <https://github.com/grpc/grpc-java/pull/5023>). This can save memory
>    when the server is applying flow control and many small messages are being
>    sent on a streaming RPC
>    - core: Improved error message for Auto-LB configuration failure (#5031
>    <https://github.com/grpc/grpc-java/pull/5031>). Previously it
>    triggered a NullPointerException
>    - okhttp: “error in frame handler” error is now INTERNAL instead of
>    UNAVAILABLE (#5049 <https://github.com/grpc/grpc-java/pull/5049>)
>    - core,netty,testing: supports receiving comma-separated multi-valued
>    binary metadata (#5020 <https://github.com/grpc/grpc-java/pull/5020>)
>    - core: Name resolver error message now includes type of name resolver
>    (#4928 <https://github.com/grpc/grpc-java/pull/4928>)
>    - core: When SRV lookup is disabled, DNS resolution now fails with
>    helpful error message instead of “UNAVAILABLE: NameResolver returned an
>    empty list” (#4951 <https://github.com/grpc/grpc-java/issues/4951>)
>    - core: For android devices, DNS cache is disabled due to known issue (
>    #4962 <https://github.com/grpc/grpc-java/issues/4962>). The DNS cache
>    is mainly used for SRV lookup results, which aren’t performed on Android
>    - Netty: NettyServer log quietly when established connection was
>    aborted by the software in your host machine (#5001
>    <https://github.com/grpc/grpc-java/pull/5001>)
>
> Acknowledgements
>
> Thanks to all our external contributors:
>
>    - Elliotte Rusty Harold @elharo <https://github.com/elharo>
>    - Nicholas DiPiazza @nddipiazza <https://github.com/nddipiazza>
>    - Rodrigo Queiro @drigz <https://github.com/drigz>
>    - ST-DDT @ST-DDT <https://github.com/ST-DDT>
>    - Thomas Broyer @tbroyer <https://github.com/tbroyer>
>    - Yang Song @songy23 <https://github.com/songy23>
>
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