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RAW_RELEASE_NOTES.md

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Raw release notes

This file contains "raw" release notes for each release. The notes are added by developers as changes are made to Envoy that are user impacting. When a release is cut, the releaser will use these notes to populate the Sphinx release notes in data-plane-api. The idea is that this is a low friction way to add release notes along with code changes. Doing this will make it substantially easier for the releaser to "linkify" all of the release notes in the final version.

1.6.0

  • Added support for sending error details as grpc.rpc.Status in DiscoveryRequest.
  • Added support for specifying alternate stats name while emitting stats for clusters.
  • Added support for inline delivery of TLS certificates and private keys.
  • Added gRPC healthcheck based on grpc.health.v1.Health service.
  • Added Metrics Service implementation.
  • Added gRPC access logging.
  • Added DOWNSTREAM_REMOTE_ADDRESS, DOWNSTREAM_REMOTE_ADDRESS_WITHOUT_PORT, and DOWNSTREAM_LOCAL_ADDRESS access log formatters. DOWNSTREAM_ADDRESS access log formatter has been deprecated.
  • TCP proxy access logs now bring an IP address without a port when using DOWNSTREAM_ADDRESS. Use DOWNSTREAM_REMOTE_ADDRESS instead.
  • Added DOWNSTREAM_REMOTE_ADDRESS_WITHOUT_PORT header formatter. CLIENT_IP header formatter has been deprecated.
  • Added transport socket interface to allow custom implementation of transport socket. A transport socket provides read and write logic with buffer encryption and decryption. The existing TLS implementation is refactored with the interface.
  • Added support for dynamic response header values (%CLIENT_IP% and %PROTOCOL%).
  • Added native DogStatsD support. :ref:DogStatsdSink <envoy_api_msg_DogStatsdSink>
  • grpc-json: Added support inline descriptor in config.
  • Added support for listening for both IPv4 and IPv6 when binding to ::.
  • Added support for :ref:LocalityLbEndpoints<envoy_api_msg_LocalityLbEndpoints> priorities.
  • Added idle timeout to TCP proxy.
  • Added Maglev consistent hash load balancer.
  • Improved TCP proxy to correctly proxy TCP half-close.
  • Added support for dynamic headers generated from upstream host endpoint metadata (UPSTREAM_METADATA(...)).
  • Added restrictions for the backing sources of xDS resources. For filesystem based xDS the file must exist at configuration time. For cluster based xDS (api_config_source, and ADS) the backing cluster must be statically defined and be of non-EDS type.
  • Added support for route matching based on URL query string parameters. :ref:QueryParameterMatcher<envoy_api_msg_QueryParameterMatcher>
  • Added support for :ref:fixed stats tag values <envoy_api_field_TagSpecifier.fixed_value> which will be added to all metrics.
  • Added /runtime admin endpoint to read the current runtime values.
  • Extended the health check filter to support computation of the health check response based on the percent of healthy servers is upstream clusters.
  • Added gateway-error retry-on policy.
  • Added support for building envoy with exported symbols This change allows scripts loaded with the lua filter to load shared object libraries such as those installed via luarocks.
  • The Google gRPC C++ library client is now supported as specified in the :ref:gRPC services overview <arch_overview_grpc_services> and :ref:GrpcService <envoy_api_msg_GrpcService>.
  • Added cluster configuration for healthy panic threshold percentage.
  • Added support for more granular weighted cluster routing by allowing the total weight to be specified in configuration.
  • Added support for custom request/response headers with mixed static and dynamic values.
  • Added support for Squash microservices debugger. :ref:Squash <envoy_api_msg_filter.http.Squash> allows debugging an incoming request to a microservice in the mesh.
  • lua: added headers replace() API.
  • Added support for direct responses -- i.e., sending a preconfigured HTTP response without proxying anywhere.
  • Added support for proxying 100-Continue responses.
  • Added DOWNSTREAM_LOCAL_ADDRESS, DOWNSTREAM_LOCAL_ADDRESS_WITHOUT_PORT header formatters, and DOWNSTREAM_LOCAL_ADDRESS access log formatter.
  • Added support for HTTPS redirects on specific routes.
  • access log: added less than or equal (LE) comparison filter.
  • access log: added configuration to runtime filter to set default sampling rate, divisor, and whether to use independent randomness or not.
  • Added the ability to pass a URL encoded Pem encoded peer certificate in the x-forwarded-client-cert header.
  • Added support for abstract unix domain sockets on linux. The abstract namespace can be used by prepending '@' to a socket path.
  • Added support for dynamically loading a tracer.
  • Added GEORADIUS_RO and GEORADIUSBYMEMBER_RO to the Redis command splitter whitelist.
  • Added support for trusting additional hops in the X-Forwarded-For request header.
  • Added setting host header value for http health check request.
  • Added SIGTERM propagation to children to hot-restarter.py, which enables using it as a parent of containers.
  • Added :ref:HTTP IP Tagging filter<config_http_filters_ip_tagging>.
  • Added support for prefix_rewrite for redirects.
  • Added support for stripping query string for redirects.
  • Added support for specifying a metadata matcher for upstream clusters in the tcp filter
  • Added support for listening on UNIX domain sockets.
  • Added support for downstream request/upstream response header manipulation in weighted cluster.
  • Added support for range based header matching for request routing.