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@dependabot dependabot bot commented on behalf of github Jan 19, 2026

Bumps google.golang.org/grpc from 1.77.0 to 1.78.0.

Release notes

Sourced from google.golang.org/grpc's releases.

Release 1.78.0

Behavior Changes

  • client: Align URL validation with Go 1.26+ to now reject target URLs with unbracketed colons in the hostname. (#8716)
  • transport/client : Return status code Unknown on malformed grpc-status. (#8735)
    • xds/resolver:
  • Drop previous route resources and report an error when no matching virtual host is found.
  • Only log LDS/RDS configuration errors following a successful update and retain the last valid resource to prevent transient failures. (#8711)

New Features

  • stats/otel: Add backend service label to weighted round robin metrics as part of A89. (#8737)
  • stats/otel: Add subchannel metrics (without the disconnection reason) to eventually replace the pickfirst metrics. (#8738)
  • client: Wait for all pending goroutines to complete when closing a graceful switch balancer. (#8746)
  • client: Add experimental.AcceptCompressors so callers can restrict the grpc-accept-encoding header advertised for a call. (#8718)

Bug Fixes

  • xds: Fix a bug in StringMatcher where regexes would match incorrectly when ignore_case is set to true. (#8723)
  • client:
    • Change connectivity state to CONNECTING when creating the name resolver (as part of exiting IDLE).
    • Change connectivity state to TRANSIENT_FAILURE if name resolver creation fails (as part of exiting IDLE).
    • Change connectivity state to IDLE after idle timeout expires even when current state is TRANSIENT_FAILURE.
    • Fix a bug that resulted in OnFinish call option not being invoked for RPCs where stream creation failed. (#8710)
  • xdsclient: Fix a race in the xdsClient that could lead to resource-not-found errors. (#8627)

Performance Improvements

  • mem: Round up to nearest 4KiB for pool allocations larger than 1MiB. (#8705)
Commits
  • 9df039e Change version to 1.78.0 (#8761)
  • 9b990b6 gracefulswitch: Wait for all goroutines on close (#8746)
  • 6677d9a xds: Fixing a typo (#8760)
  • d35cedd xds/resolver: pass route's auto_host_rewrite to LB picker (gRFC A81) (#8740)
  • d931fdc client: allow overriding grpc-accept-encoding header (#8718)
  • 0800ec7 xds/clusterimpl: update TestChildPolicyChangeOnConfigUpdate to use custom lb ...
  • 6553ea1 stats/otel: Add subchannel metrics (A94) (#8738)
  • 81a00ce grpc: Fixing spelling typo (#8756)
  • e413838 client: Change connectivity state to CONNECTING when creating the name resolv...
  • f9d2bdb stats/otel: Add grpc.lb.backend_service label to wrr metrics (A89) (#8737)
  • Additional commits viewable in compare view

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Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.77.0 to 1.78.0.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](grpc/grpc-go@v1.77.0...v1.78.0)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-version: 1.78.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot bot added dependencies Pull requests that update a dependency file go Pull requests that update Go code labels Jan 19, 2026
@dependabot dependabot bot requested a review from nickytd as a code owner January 19, 2026 12:33
@dependabot dependabot bot added dependencies Pull requests that update a dependency file go Pull requests that update Go code labels Jan 19, 2026
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@gardener-prow gardener-prow bot added do-not-merge/needs-kind Indicates a PR lacks a `kind/foo` label and requires one. cla: yes Indicates the PR's author has signed the cla-assistant.io CLA. size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. labels Jan 19, 2026
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