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changelog for edge-21.7.4 (#6543) 

## edge-21.7.4

This release continues to focus on dependency updates. It also adds the
`l5d-proxy-error` information header to distinguish proxy generated errors
proxy generated errors from application generated errors.

* Updated several project dependencies
* Added a new `l5d-proxy-error` on responses that allows proxy-generated error
  responses to be distinguished from application-generated error responses.
* Removed support for configuring HTTP/2 keepalives via the proxy.
  Configuring this setting would sometimes cause conflicts with Go gRPC servers
  and clients
* Added a new `target_addr` label to `*_tcp_accept_errors` metrics to improve
  diagnostics, especially for TLS detection timeouts

Signed-off-by: Dennis Adjei-Baah <dennis@buoyant.io>
Co-authored-by: Kevin Leimkuhler <kevin@kleimkuhler.com>
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Dennis Adjei-Baah 2021-07-22 14:24:10 -05:00 committed by GitHub
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# Changes
## edge-21.7.4
This release continues to focus on dependency updates. It also adds the
`l5d-proxy-error` information header to distinguish proxy generated errors
proxy generated errors from application generated errors.
* Updated several project dependencies
* Added a new `l5d-proxy-error` on responses that allows proxy-generated error
responses to be distinguished from application-generated error responses.
* Removed support for configuring HTTP/2 keepalives via the proxy.
Configuring this setting would sometimes cause conflicts with Go gRPC servers
and clients
* Added a new `target_addr` label to `*_tcp_accept_errors` metrics to improve
diagnostics, especially for TLS detection timeouts
## edge-21.7.3
This edge release introduces several changes around metrics. ReplicaSets are now