.. _version_history_1.4.0: 1.4.0 (August 24, 2017) ======================== Changes ------- * **admin**: Added /routes admin endpoint. * **clusters**: Route ``validate_clusters`` option added. * **clusters**: Virtual cluster priorities have been hard removed without deprecation as we are reasonably sure no one is using this feature. * **config**: YAML is now directly supported for config files. * **configs**: :ref:`Configuration check tool ` added. * **deprecation**: Several features are `deprecated as of the 1.4.0 release `_. They will be removed at the beginning of the 1.5.0 release cycle. We explicitly call out that the ``HttpFilterConfigFactory`` filter API has been deprecated in favor of ``NamedHttpFilterConfigFactory``. * **dns**: Per-cluster DNS resolvers added. * **dns**: UDP ``statsd_ip_address`` option added. * **envoy**: Many small bug fixes and performance improvements not listed. * **fault_injection**: :ref:`Fault filter ` enhancements and fixes. * **flow_control**: End-to-end flow control is now supported for TCP proxy, HTTP/1, and HTTP/2. HTTP flow control that includes filter buffering is incomplete and will be implemented in 1.5.0. * **grpc**: gRPC web :ref:`filter ` added. * **grpc**: gRPC/JSON transcoder :ref:`filter ` added. * **headers**: :ref:`x-envoy-downstream-service-node ` header added. * **headers**: :ref:`x-envoy-retry-grpc-on ` header added. * **headers**: :ref:`x-forwarded-client-cert ` header added. * **hot_restart**: Hot restart :repo:`compile time flag ` added. * **http1**: Initial HTTP/1 forward proxy support for absolute URLs has been added. * **http2**: HTTP/2 codec settings are now configurable. * **lds**: :ref:`LDS API ` added. * **load_balancing**: Original destination :ref:`cluster ` and :ref:`load balancer ` added. * **logging**: Log verbosity :repo:`compile time flag ` added. * **mac**: macOS is :repo:`now supported `. (A few features are missing such as hot restart and original destination routing). * **networking**: IPv6 support is now complete. * **options**: :option:`--local-address-ip-version` option added. * **options**: Config validation mode added via the :option:`--mode` option. * **rate_limting**: Configurable timeout for the rate limit service call in the :ref:`network ` and :ref:`HTTP ` rate limit filters. * **schema**: :ref:`JSON schema check tool ` added. * **tls**: TLS :``require_client_certificate`` option added. * **websockets**: :ref:`WebSocket ` is now supported. Deprecated ---------- * **config**: Config option ``http_codec_options`` has been deprecated and has been replaced with ``http2_settings``. * **filters**: The direction of network and HTTP filters in the configuration will be ignored from 1.4.0 and later removed from the configuration in the v2 APIs. Filter direction is now implied at the C++ type level. The ``type()`` methods on the ``NamedNetworkFilterConfigFactory`` and ``NamedHttpFilterConfigFactory`` interfaces have been removed to reflect this. * **grpc**: The protobuf stub gRPC support via ``Grpc::RpcChannelImpl`` is now replaced with ``Grpc::AsyncClientImpl``. This no longer uses ``protoc`` generated stubs but instead utilizes C++ template generation of the RPC stubs. ``Grpc::AsyncClientImpl`` supports streaming, in addition to the previous unary, RPCs. * **http_filters**: ``HttpFilterConfigFactory`` filter API has been deprecated in favor of ``NamedHttpFilterConfigFactory``. * **logging**: The following log macros have been deprecated: ``log_trace``, ``log_debug``, ``conn_log``, ``conn_log_info``, ``conn_log_debug``, ``conn_log_trace``, ``stream_log``, ``stream_log_info``, ``stream_log_debug``, ``stream_log_trace``. For replacements, please see `logger.h `_. * **options**: Config option ``statsd_local_udp_port`` has been deprecated and has been replaced with ``statsd_udp_ip_address``. * **streaming**: The connectionId() and ssl() callbacks of StreamFilterCallbacks have been deprecated and replaced with a more general connection() callback, which, when not returning a nullptr, can be used to get the connection id and SSL connection from the returned Connection object pointer.