repo: Release v1.27.4

**Summary of changes**:

- Patch nghttp2 to resolve [CVE-2024-30255](GHSA-j654-3ccm-vfmm)
- Assorted fixes

**Docker images**:
    https://hub.docker.com/r/envoyproxy/envoy/tags?page=1&name=v1.27.4
**Docs**:
    https://www.envoyproxy.io/docs/envoy/v1.27.4/
**Release notes**:
    https://www.envoyproxy.io/docs/envoy/v1.27.4/version_history/v1.27/v1.27.4
**Full changelog**:
    v1.27.3...v1.27.4

Signed-off-by: Ryan Northey <ryan@synca.io>
Signed-off-by: Yan Avlasov <yavlasov@google.com>

VERSION.txt

@@ -1 +1 @@
-1.27.4-dev
+1.27.4

changelogs/1.26.8.yaml

@@ -0,0 +1,13 @@
+date: April 4, 2024
+
+bug_fixes:
+- area: http2
+  change: |
+    Update nghttp2 to resolve CVE-2024-30255 (https://github.com/envoyproxy/envoy/security/advisories/GHSA-j654-3ccm-vfmm).
+
+new_features:
+- area: google_grpc
+  change: |
+    Added an off-by-default runtime flag
+    ``envoy.reloadable_features.google_grpc_disable_tls_13`` to disable TLSv1.3
+    usage by gRPC SDK for ``google_grpc`` services.

changelogs/1.27.3.yaml

@@ -0,0 +1,52 @@
+date: February 9, 2024
+
+minor_behavior_changes:
+- area: access_log
+  change: |
+    When emitting grpc logs, only downstream filter state was used. Now, both downstream and upstream filter states will be tried
+    to find the keys configured in filter_state_objects_to_log.
+
+bug_fixes:
+- area: buffer
+  change: |
+    Fixed a bug (https://github.com/envoyproxy/envoy/issues/28760) that the internal listener causes an undefined
+    behavior due to the unintended release of the buffer memory.
+- area: http
+  change: |
+    Fixed recursion when HTTP connection is disconnected due to a high number of premature resets.
+- area: grpc
+  change: |
+    Fixed a bug in gRPC async client cache which intermittently causes CPU spikes due to busy loop in timer expiration.
+- area: tracing
+  change: |
+    Fixed a bug where Datadog spans tagged as errors would not have the appropriate error property set.
+- area: tracing
+  change: |
+    Fixed a bug where child spans produced by the Datadog tracer would have an incorrect operation name.
+- area: tracing
+  change: |
+    Fixed a bug that caused the Datadog tracing extension to drop traces that
+    should be kept on account of an extracted sampling decision.
+- area: proxy protocol
+  change: |
+    fixed a crash when Envoy is configured for PROXY protocol on both a listener and cluster, and the listener receives
+    a PROXY protocol header with address type LOCAL (typically used for health checks).
+- area: proxy_protocol
+  change: |
+    Fix crash due to uncaught exception when the operating system does not support an address type (such as IPv6) that is
+    received in a proxy protocol header. Connections will instead be dropped/reset.
+- area: proxy_protocol
+  change: |
+    Fixed a bug where TLVs with non utf8 characters were inserted as protobuf values into filter metadata circumventing
+    ext_authz checks when ``failure_mode_allow`` is set to ``true``.
+- area: tls
+  change: |
+    Fix crash due to uncaught exception when the operating system does not support an address type (such as IPv6) that is
+    received in an mTLS client cert IP SAN. These SANs will be ignored. This applies only when using formatter
+    ``%DOWNSTREAM_PEER_IP_SAN%``.
+- area: http
+  change: |
+    Fixed crash when HTTP request idle and per try timeouts occurs within backoff interval.
+- area: url matching
+  change: |
+    Fixed excessive CPU utilization when using regex URL template matcher.

changelogs/current.yaml

@@ -1,30 +1,20 @@
-date: Pending
+date: April 4, 2024
 
 behavior_changes:
-# *Changes that are expected to cause an incompatibility if applicable; deployment changes are likely required*
 - area: http2
   change: |
     Discard the ``Host`` header if the ``:authority`` header was received to bring Envoy into compliance with
     https://www.rfc-editor.org/rfc/rfc9113#section-8.3.1 This behavioral change can be reverted by setting runtime flag
     ``envoy.reloadable_features.http2_discard_host_header`` to false.
 
-minor_behavior_changes:
-# *Changes that may cause incompatibilities for some users, but should not for most*
-
 bug_fixes:
-# *Changes expected to improve the state of the world and are unlikely to have negative effects*
 - area: http2
   change: |
     Update nghttp2 to resolve CVE-2024-30255 (https://github.com/envoyproxy/envoy/security/advisories/GHSA-j654-3ccm-vfmm).
 
-removed_config_or_runtime:
-# *Normally occurs at the end of the* :ref:`deprecation period <deprecated>`
-
 new_features:
 - area: google_grpc
   change: |
     Added an off-by-default runtime flag
     ``envoy.reloadable_features.google_grpc_disable_tls_13`` to disable TLSv1.3
     usage by gRPC SDK for ``google_grpc`` services.
-
-deprecated:

docs/versions.yaml

@@ -19,5 +19,5 @@
 "1.23": 1.23.12
 "1.24": 1.24.12
 "1.25": 1.25.11
-"1.26": 1.26.7
-"1.27": 1.27.2
+"1.26": 1.26.8
+"1.27": 1.27.3