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0.99.3 release notes

14th April 2020

🌟 New features

Added RetryStrategy.onException() #2652
Armeria clients can now send an OPTIONS * HTTP/1 request as an alternative to an HTTP/2 PING frame. #2636
- This feature is disabled by default and you can enable it by:
  - specifying com.linecorp.armeria.defaultPingIntervalMillis system property
  - or calling ClientFactoryBuilder.pingIntervalMillis().

grpc-timeout gRPC client header is generated correctly now. #2643
QueryParams.toQueryString() does not raise an exception anymore. #2644
HealthCheckedEndpointGroup does not raise aConcurrentModificationException anymore. #2647
Thrift TEXT protocol does not fail to handle a recursive union struct anymore. #2654
MoreNamingConventions.prometheus() now appends the seconds suffix for LongTaskTimer correctly, when using legacy meter names. #2646
Fixed a bug where DocService sends a request with a wrong HTTP method if a service specification contains duplicate methods. #2657

com.linecorp.armeria.defaultHttp2PingTimeoutMillis flag has been replaced with com.linecorp.armeria.defaultPintIntervalMillis.
com.linecorp.armeria.defaultUseHttp2PingWhenNoActiveStreams flag has been removed without a replacement, because:
- HTTP/2 can send PING frame regardless of whether there is an active stream or not.
- HTTP/1 can only send OPTIONS * HTTP/1.1 when there is no active stream.
ClientFactoryBuilder.http2PingTimeoutMillis() has been replaced with ClientFactoryBuilder.pingIntervalMillis().
ServerBuilder.http2PingTimeoutMillis() has been replaced with ServerBuilder.pingIntervalMillis().