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fix(deps): update module google.golang.org/grpc to v1.81.1#400

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fix(deps): update module google.golang.org/grpc to v1.81.1#400
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@renovate renovate Bot commented Jun 11, 2026

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This PR contains the following updates:

Package Change Age Confidence
google.golang.org/grpc v1.78.0 → v1.81.1 age confidence

Release Notes

grpc/grpc-go (google.golang.org/grpc)

v1.81.1: Release 1.81.1

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Security

  • xds/rbac: Fix a potential authorization bypass caused by incorrectly falling through URI/DNS SANs to Subject Distinguished Name (DN) when matching the authenticated principal name. With this fix, only the first non-empty identity source will be used, as per gRFC A41. (#​9111)

v1.81.0: Release 1.81.0

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Behavior Changes

  • balancer/rls: Switch gauge metrics to asynchronous emission (once per collection cycle) to reduce telemetry noise and align with other gRPC language implementations. (#​8808)

Dependencies

  • Minimum supported Go version is now 1.25. (#​8969)

Bug Fixes

  • xds: Use the leaf cluster's security config for the TLS handshake instead of the aggregate cluster's config. (#​8956)
  • transport: Send a RST_STREAM when receiving an END_STREAM when the stream is not already half-closed. (#​8832)
  • xds: Fix ADS resource name validation to prevent a panic. (#​8970)

New Features

  • grpc/stats: Add support for custom labels in per-call metrics (gRFC A108). (#​9008)
  • xds: Add support for Server Name Indication (SNI) and SAN validation (gRFC A101). Disabled by default. To enable, set GRPC_EXPERIMENTAL_XDS_SNI=true environment variable. (#​9016)
  • xds: Add support to control which fields get propagated from ORCA backend metric reports to LRS load reports (gRFC A85). Disabled by default. To enable, set GRPC_EXPERIMENTAL_XDS_ORCA_LRS_PROPAGATION=true. (#​9005)
  • xds: Add metrics to track xDS client connectivity and cached resource state (gRFC A78). (#​8807)
  • stats/otel: Enhance grpc.subchannel.disconnections metric by adding disconnection reason to the grpc.disconnect_error label (gRFC A94). This provides granular insights into why subchannels are closing. (#​8973)
  • mem: Add mem.Buffer.Slice() API to slice the buffer like a slice. (#​8977)

Performance Improvements

  • alts: Pool read buffers to lower memory utilization when sockets are unreadable. (#​8964)
  • transport: Pool HTTP/2 framer read buffers to reduce idle memory consumption. Currently limited to Linux for ALTS and non-encrypted transports (TCP, Unix). To disable, set GRPC_GO_EXPERIMENTAL_HTTP_FRAMER_READ_BUFFER_POOLING=false and report any issues. (#​9032)

v1.80.0

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v1.79.3: Release 1.79.3

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Security

  • server: fix an authorization bypass where malformed :path headers (missing the leading slash) could bypass path-based restricted "deny" rules in interceptors like grpc/authz. Any request with a non-canonical path is now immediately rejected with an Unimplemented error. (#​8981)

v1.79.2: Release 1.79.2

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Bug Fixes

  • stats: Prevent redundant error logging in health/ORCA producers by skipping stats/tracing processing when no stats handler is configured. (#​8874)

v1.79.1: Release 1.79.1

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Bug Fixes

  • grpc: Remove the -dev suffix from the User-Agent header. (#​8902)

v1.79.0: Release 1.79.0

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API Changes

  • mem: Add experimental API SetDefaultBufferPool to change the default buffer pool. (#​8806)
  • experimental/stats: Update MetricsRecorder to require embedding the new UnimplementedMetricsRecorder (a no-op struct) in all implementations for forward compatibility. (#​8780)

Behavior Changes

  • balancer/weightedtarget: Remove handling of Addresses and only handle Endpoints in resolver updates. (#​8841)

New Features

  • experimental/stats: Add support for asynchronous gauge metrics through the new AsyncMetricReporter and RegisterAsyncReporter APIs. (#​8780)
  • pickfirst: Add support for weighted random shuffling of endpoints, as described in gRFC A113.
    • This is enabled by default, and can be turned off using the environment variable GRPC_EXPERIMENTAL_PF_WEIGHTED_SHUFFLING. (#​8864)
  • xds: Implement :authority rewriting, as specified in gRFC A81. (#​8779)
  • balancer/randomsubsetting: Implement the random_subsetting LB policy, as specified in gRFC A68. (#​8650)
  • server: Include status detail headers, if available, when terminating a stream during request header processing. (#​8754)

Bug Fixes

  • credentials/tls: Fix a bug where the port was not stripped from the authority override before validation. (#​8726)
  • xds/priority: Fix a bug causing delayed failover to lower-priority clusters when a higher-priority cluster is stuck in CONNECTING state. (#​8813)
  • health: Fix a bug where health checks failed for clients using legacy compression options (WithDecompressor or RPCDecompressor). (#​8765)
  • transport: Fix an issue where the HTTP/2 server could skip header size checks when terminating a stream early. (#​8769)

Performance Improvements

  • credentials/alts: Optimize read buffer alignment to reduce copies. (#​8791)
  • mem: Optimize pooling and creation of buffer objects. (#​8784)
  • transport: Reduce slice re-allocations by reserving slice capacity. (#​8797)

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renovate Bot commented Jun 11, 2026

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ℹ️ Artifact update notice

File name: go.mod

In order to perform the update(s) described in the table above, Renovate ran the go get command, which resulted in the following additional change(s):

  • 13 additional dependencies were updated

Details:

Package Change
github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp v1.30.0 -> v1.31.0
github.com/cncf/xds/go v0.0.0-20251022180443-0feb69152e9f -> v0.0.0-20260202195803-dba9d589def2
github.com/envoyproxy/go-control-plane/envoy v1.35.0 -> v1.37.0
github.com/envoyproxy/protoc-gen-validate v1.2.1 -> v1.3.3
github.com/go-jose/go-jose/v4 v4.1.3 -> v4.1.4
go.opentelemetry.io/contrib/detectors/gcp v1.38.0 -> v1.42.0
go.opentelemetry.io/otel v1.40.0 -> v1.43.0
go.opentelemetry.io/otel/metric v1.40.0 -> v1.43.0
go.opentelemetry.io/otel/sdk v1.40.0 -> v1.43.0
go.opentelemetry.io/otel/sdk/metric v1.40.0 -> v1.43.0
go.opentelemetry.io/otel/trace v1.40.0 -> v1.43.0
google.golang.org/genproto/googleapis/api v0.0.0-20260203192932-546029d2fa20 -> v0.0.0-20260226221140-a57be14db171
google.golang.org/genproto/googleapis/rpc v0.0.0-20260203192932-546029d2fa20 -> v0.0.0-20260226221140-a57be14db171

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