●Change8

Migrating to Envoy v1.35.13

Version v1.35.13 introduces 1 breaking change. This guide details how to update your code.

Released: 6/23/2026

1
Breaking Changes
1
Migration Steps
11
Affected Symbols

⚠️ Check Your Code

If you use any of these symbols, you need to read this guide:

ext_procrouterOAuth2 filtergrpc_stats filterPROXY Protocol v2TLS SANJSON destructorDNS filterHTTP/3 QPACKTcpStatsdSyncenvoy.network.connection_balance.dlb

Breaking Changes

●Issue #1

The contrib extension `envoy.network.connection_balance.dlb` (Intel DLB connection balancer) has been disabled at the Bazel layer for all builds and platforms due to a source archive breakage. Users relying on this extension must use local workarounds mentioned in https://github.com/envoyproxy/envoy/issues/45491.

Migration Steps

  1. 1
    If you were using the `envoy.network.connection_balance.dlb` extension, consult https://github.com/envoyproxy/envoy/issues/45491 for local workarounds, as this extension is disabled by default in this release.

Release Summary

This release primarily focuses on addressing numerous critical security vulnerabilities across various components, including HTTP/3, OAuth2, and various filters. Additionally, the Intel DLB connection balancer extension has been disabled due to upstream issues.

Need More Details?

View the full release notes and all changes for Envoy v1.35.13.

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