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AI-analyzed release notes for CNCF graduated and incubating projects.

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AllAI & MLCI/CD & App DeliveryKubernetes CoreNetworking & MessagingObservabilityOrchestration & ManagementProvisioning & RuntimeSecurityStorage & Data
Strimzi1.2.0Networking & MessagingAug 20, 2026
ACTION 2CHECK 3OTHER 7View full analysis

This release removes legacy CRD API versions and resource state metrics, and changes defaults for token mounting, feature gates, and container security contexts. It also adds Kafka and configuration capabilities and updates shipped dependencies.

Action needed (2)

  • breakingService Account token mounting

    Service Account tokens are no longer auto-mounted into Pods. They are mounted through a volume instead.

  • breakingThe ServerSideApplyPhase1 feature gate, permanently enabled

    The ServerSideApplyPhase1 feature gate has moved to GA and is permanently enabled. It can no longer be disabled.

Check if affected (3)

  • breakingLegacy CRD API versions, no longer supported

    Applies before upgrading to Strimzi 1.0.0 or later if you use the v1beta2, v1beta1, or v1alpha1 APIs.

  • breakingResource state metrics, removed

    Applicability is not stated in the release notes.

  • breakingDefault securityContext for operator installations

    Applies if you use the Cluster, Topic, and User Operator YAML installation files or the Cluster Operator Helm Chart.

Source ↗
NATSv2.14.4Networking & MessagingJul 30, 2026
CHECK 4OTHER 37View full analysis

A maintenance release with dependency and toolchain updates, JetStream performance and configuration improvements, and broad correctness fixes. It also includes authentication and permission fixes.

Check if affected (4)

  • securityJWT validation with whitespace-only permissions

    Applies if you use JWT validation.

  • securityverify_and_map authentication with blank passwords

    Applies if TLS verify_and_map is configured.

  • securityMQTT subscription restriction for $MQTT.> subjects

    Applies if you use MQTT.

  • + 1 more on the release page
Source ↗
Ciliumv1.20.0Networking & MessagingJul 29, 2026
ACTION 11CHECK 28PLAN 6OTHER 478View full analysis

A substantial feature and maintenance release with Gateway API, networking, IPAM, policy, observability, and datapath changes, alongside correctness and performance fixes. Operators should review removed or renamed options, changed defaults and requirements, removed metrics and integrations, and the dependency updates addressing security-related issues.

Action needed (11)

  • securitygoogle.golang.org/grpc v1.79.3

    The google.golang.org/grpc module is updated to v1.79.3 in the main branch.

  • securitygoogle.golang.org/grpc v1.82.1

    The google.golang.org/grpc module is updated to v1.82.1 in the v1.20 branch.

  • securityhelm.sh/helm/v4 v4.1.4

    The helm.sh/helm/v4 module is updated to v4.1.4 in the main branch.

  • securitygithub.com/cloudflare/circl v1.6.3

    The github.com/cloudflare/circl module is updated to v1.6.3.

  • securitygithub.com/go-jose/go-jose/v4 v4.1.4

    The github.com/go-jose/go-jose/v4 module is updated to v4.1.4.

  • securitygithub.com/moby/spdystream v0.5.1

    The github.com/moby/spdystream module is updated to v0.5.1.

  • breakingcni.customConf CNI configuration version

    The default CNI configuration version for cni.customConf changes from 0.3.1 to 1.0.0.

  • breakingCilium operator IPAM metrics removal

    The IPAM metrics cilium_operator_ipam_ips and cilium_operator_ipam_available_interfaces are removed.

  • breakingDefault CNI configuration version

    The default CNI configuration version changes from 0.3.1 to 1.0.0.

  • breakingNative histogram default

    Native histograms are emitted for all histograms by default.

  • breakingAgent bootstrap metrics removal

    Agent bootstrap metrics are removed.

Check if affected (28)

  • securitytbid traffic host namespace handling

    Applies if you use tbid traffic.

  • breakingDocker libnetwork plugin removal

    Applies if you use the Docker libnetwork plugin.

  • breakingces-slice-mode removal

    Applies if you configure ces-slice-mode.

  • + 25 more on the release page

Plan ahead (6)

  • deprecatedBeta Mutual Auth deprecationremoval date not announced

    Applies if you use Mutual Auth.

  • deprecatedDeprecated address and interface CIDR fields

    Applies if you configure addresses[].subnet or interfaces[].cidr.

  • deprecatedLocal REST BGP API deprecationremoval date not announced

    Applies if you use the local REST BGP APIs.

  • + 3 more on the release page
Source ↗
Linkerdedge-26.7.1Networking & MessagingJul 21, 2026
ACTION 1CHECK 1OTHER 58View full analysis

This release tightens Gateway API and service-port handling and corrects tracing identity construction. It also updates dependencies and shipped components, with no security advisories or explicitly described vulnerabilities.

Action needed (1)

  • breakingUndefined service port requests disallowed

    The destination component now disallows requests to service ports that are not defined.

Check if affected (1)

  • breakingGateway API checks during Helm installation

    Applies when you use Helm.

Source ↗
Ciliumv1.19.6Networking & MessagingJul 16, 2026
CHECK 1OTHER 46View full analysis

A maintenance release with numerous correctness fixes, Gateway API and telemetry additions, dependency and image updates, and internal behavior changes. No security advisories or explicitly described vulnerabilities are present.

Check if affected (1)

  • breakingHelm handling of hostFirewall.enabled disablement

    Applies when you use Helm to disable hostFirewall.enabled, toggling it from true to false.

Source ↗
Envoyv1.39.0Networking & MessagingJul 14, 2026
CHECK 11OTHER 50View full analysis

A broad release with operator-facing changes across configuration, protocols, extensions, networking, and observability. Security fixes address multiple identified CVEs and a GHSA, while changed defaults, stricter input validation, and removed functionality may affect existing deployments.

Check if affected (11)

  • securityhighHTTP/2 header limits and flood protection

    Applies if you use HTTP/2.

  • securityhighHTTP/3 QPACK and content-length security fixes

    Applies if you use HTTP/3.

  • securityhighAdditional protocol, parser, formatter, and decompression security fixes

    Applies if you use DNS query validation, JSON nesting limits, PROXY protocol TLV, the formatter, TCP StatsD, TLS SAN, or Zstd decompression.

  • + 8 more on the release page
Source ↗
gRPCv1.82.1Networking & MessagingJul 8, 2026
CHECK 1View full analysis

A dependency-focused release raises the minimum supported Python protobuf version. The headings contain no operator-facing changes.

Check if affected (1)

  • breakingThe Python protobuf dependency lower bound, raised

    Applies if you use Python.

Source ↗
gRPCv1.82.0Networking & MessagingJul 2, 2026
CHECK 1OTHER 12View full analysis

A feature and maintenance release that adds and changes capabilities across Core, PHP, Python, and Ruby, corrects runtime defects, and upgrades protobuf dependencies. The Python 1.82.0 package was removed from PyPI.

Check if affected (1)

  • breakinggRPC Python release 1.82.0, yanked from PyPI

    Applies if you use gRPC Python release 1.82.0.

Source ↗
NATSv2.14.3Networking & MessagingJun 29, 2026
CHECK 3OTHER 42View full analysis

A maintenance release with a dependency and toolchain update, broad defect corrections, and behavior improvements across authentication, routing, monitoring, clustering, and JetStream. It also removes JSONP monitoring callbacks and addresses MQTT and authorization-related connection and permission handling.

Check if affected (3)

  • securityNats-Trace-Dest publish permission checks for leaf connections

    Applies if you use Leaf connections.

  • securityMQTT subscribe deny rules on retained message and QoS replay paths

    Applies if you use MQTT.

  • breakingThe JSONP callback support in monitoring endpoints, removed

    Applies if you use JSONP callback support.

Source ↗
NATSv2.12.12Networking & MessagingJun 29, 2026
CHECK 1OTHER 45View full analysis

A maintenance release with dependency updates, operational behavior changes, and correctness fixes across General, MQTT, Monitoring, and JetStream. It also removes JSONP callback support from monitoring endpoints.

Check if affected (1)

  • breakingThe JSONP callback support in monitoring endpoints, removed

    Applies if you use JSONP callback support.

Source ↗
Strimzi1.1.0Networking & MessagingJun 27, 2026
CHECK 3OTHER 21View full analysis

This release adds operator-facing configuration and feature capabilities while updating supported Apache Kafka versions and related integrations. It also changes TLS file handling for KafkaBridge and KafkaMirrorMaker2 and renames entity-operator healthcheck ports, so those areas may require attention.

Check if affected (3)

  • breakingSupport for Kafka 4.1.x removed

    Applies if you use Kafka 4.1.x.

  • breakingPEM-based TLS files for KafkaBridge and KafkaMirrorMaker2

    Applies if you use KafkaBridge or KafkaMirrorMaker2 with TLS authentication or a TLS truststore.

  • breakingEntity-operator healthcheck port names

    Applies if you use entity-operator healthcheck ports.

Source ↗
Istio1.30.2Networking & MessagingJun 24, 2026
ACTION 12CHECK 5OTHER 7View full analysis

A maintenance release with a changed logging default, operator-facing additions and fixes, and a restriction on pilot-agent metric content types. It also includes Envoy security fixes covering denial-of-service, crashes, validation issues, memory exhaustion, and other vulnerabilities.

Action needed (12)

  • securityhighCVE-2026-47220 crash bug fix

    The Envoy security update fixes the crash bug described by CVE-2026-47220.

  • securityhighCVE-2026-48044 memory exhaustion fix

    The Envoy security update fixes the memory exhaustion vulnerability described by CVE-2026-48044.

  • securityhighCVE-2026-48042 JSON nesting-depth limit

    The Envoy security update limits JSON nesting depth to 1000 through envoy.reloadable_features.limit_json_parser_nesting_depth.

  • securitymediumCVE-2026-47692 bug fix

    The Envoy security update fixes the bug described by CVE-2026-47692.

  • securitymediumCVE-2026-47205 use-after-free crash fix

    The Envoy security update fixes the use-after-free crash described by CVE-2026-47205.

  • securitymediumCVE-2026-48090 asynchronous token callback handling

    The Envoy security update fixes a bug where the asynchronous token change callback could be triggered after the filter had been torn down.

  • securitymediumCVE-2026-47778 Subject Alternative Name validation

    The Envoy security update fixes an issue where Envoy could fail to validate the Subject Alternative Name (SAN).

  • securitymediumCVE-2026-47204 crash and use-after-free fix

    The Envoy security update fixes a crash or use-after-free described by CVE-2026-47204.

  • securitymediumCVE-2026-48497 query name length checking

    The Envoy security update fixes sanity checking of the query name length.

  • securitymediumCVE-2026-47775 padding oracle

    The Envoy security update addresses a padding oracle described by CVE-2026-47775.

  • securityGHSA-p7c7-7c47-pwch denial-of-service fix

    The Envoy security update fixes the denial-of-service vulnerability described by GHSA-p7c7-7c47-pwch.

  • breakingWarn-level message logging

    The message is now logged at warn level.

Check if affected (5)

Source ↗
Envoyv1.38.3Networking & MessagingJun 23, 2026
ACTION 16CHECK 2View full analysis

A maintenance release with multiple disclosed security fixes and a security-related Wasmtime dependency update. It also removes the Intel DLB connection-balancer extension from all builds and disables TLS certificate compression by default.

Action needed (16)

  • securityhighThe com_github_wasmtime dependency update

    The Wasmtime dependency com_github_wasmtime was updated to resolve CVE-2026-47261. The update ships in the WebAssembly build.

  • securityhighREQUESTED_SERVER_NAME crash, CVE-2026-47220

    The REQUESTED_SERVER_NAME crash was corrected in Envoy. The change addresses CVE-2026-47220 and GHSA-j9wh-4qfm-wf2v.

  • securityhighzstd RLE zip bomb, CVE-2026-48044

    The zstd RLE zip bomb issue was corrected in Envoy. The change addresses CVE-2026-48044 and GHSA-m3p9-47wh-88wg.

  • securityhighHighly nested JSON destructor stack overflow, CVE-2026-48042

    The stack overflow in the destructor of highly nested JSON was corrected in Envoy. The change addresses CVE-2026-48042 and GHSA-f24p-rxw2-g6pv.

  • securityhighHTTP/3 to HTTP/1 request smuggling, CVE-2026-48743

    The HTTP/3 to HTTP/1 request smuggling issue involving a headers-only request with a nonzero Content-Length was corrected in Envoy. The change addresses CVE-2026-48743 and GHSA-8phg-2h2q-jgxf.

  • securitymediumAuthz per route crash, CVE-2026-47205

    The Authz per route crash was corrected in Envoy. The change addresses CVE-2026-47205 and GHSA-mvh9-767w-x47j.

  • securitymediumThe ext_proc response issue, CVE-2026-47207

    The ext_proc response handling issue involving one gRPC message was corrected in Envoy. The change addresses CVE-2026-47207 and GHSA-68cv-hq5f-g6xv.

  • securitymediumRouter internal redirects crash, CVE-2026-47221

    The router internal redirects crash was corrected in Envoy. The change addresses CVE-2026-47221 and GHSA-rcff-gw58-pjpr.

  • securitymediumOAuth2 code verifier padding oracle, CVE-2026-47775

    The OAuth2 code verifier padding oracle issue was corrected in Envoy. The change addresses CVE-2026-47775 and GHSA-396h-jpq4-vc7p.

  • securitymediumThe grpc_stats filter segfault, CVE-2026-47204

    The grpc_stats filter segfault on Connect protocol requests to direct_response routes was corrected in Envoy. The change addresses CVE-2026-47204 and GHSA-3jxh-8p6x-7pf6.

  • securitymediumPROXY Protocol v2 skipped TLVs, CVE-2026-47692

    The PROXY Protocol v2 header generator issue involving skipped TLVs and attacker-controlled spillover into the upstream application stream was corrected in Envoy. The change addresses CVE-2026-47692 and GHSA-wh36-hm39-mm3r.

  • securitymediumEmbedded NUL in TLS SAN truncation, CVE-2026-47778

    The embedded NUL issue in TLS SAN truncation that could cause an authorization bypass was corrected in Envoy. The change addresses CVE-2026-47778 and GHSA-f8x4-rw5x-f3r7.

  • securitymediumOAuth2 filter late token completion, CVE-2026-48090

    The OAuth2 filter issue involving late asynchronous token completion after stream teardown was corrected in Envoy. The change addresses CVE-2026-48090 and GHSA-3cj2-c63f-q26f.

  • securitymediumDNS UDP filter abnormal process termination, CVE-2026-48497

    The abnormal process termination in the DNS UDP filter was corrected in Envoy. The change addresses CVE-2026-48497 and GHSA-j6g2-wf95-q66q.

  • securitymediumThe TcpStatsdSink heap buffer overflow, CVE-2026-48706

    The heap buffer overflow in TcpStatsdSink was corrected in Envoy. The change addresses CVE-2026-48706 and GHSA-7q3f-gwg7-j8g4.

  • securityHTTP/3 QPACK blocked decoding, GHSA-p7c7-7c47-pwch

    The HTTP/3 stack issue involving QPACK blocked decoding was corrected in Envoy. The change addresses GHSA-p7c7-7c47-pwch.

Check if affected (2)

  • breakingThe envoy.network.connection_balance.dlb extension removal

    Applies if you use envoy.network.connection_balance.dlb.

  • breakingThe envoy.reloadable_features.tls_certificate_compression_brotli default

    Applies if you do not configure envoy.reloadable_features.tls_certificate_compression_brotli.

Source ↗
Envoyv1.37.5Networking & MessagingJun 23, 2026
ACTION 1CHECK 16View full analysis

A security-focused release with fixes for multiple Envoy components, extensions, protocols, and dependencies. It also disables the broken envoy.network.connection_balance.dlb contrib extension at the Bazel layer for all builds and platforms.

Action needed (1)

  • securityhighcom_github_wasmtime dependency update, CVE-2026-47261

    The com_github_wasmtime dependency was bumped to resolve CVE-2026-47261.

Check if affected (16)

Source ↗
Envoyv1.36.9Networking & MessagingJun 23, 2026
ACTION 1CHECK 15View full analysis

A security-focused release with fixes for crashes, request handling, protocol processing, authentication, and parsing, plus a security-related wasm dependency update. The contrib extension envoy.network.connection_balance.dlb is disabled in all builds.

Action needed (1)

  • securityhighHighly nested JSON destructor stack overflow

    The stack overflow in the destructor of highly nested JSON is corrected in connection with CVE-2026-48042 and GHSA-f24p-rxw2-g6pv.

Check if affected (15)

  • securityhighzstd RLE zip bomb correction

    Applies if you use zstd.

  • securityhighHTTP/3 to HTTP/1 request smuggling

    Applies if you use HTTP/3 and HTTP/1.

  • securityhighcom_github_wasmtime dependency update

    Applies if you use wasm.

  • + 12 more on the release page
Source ↗
Envoyv1.35.13Networking & MessagingJun 23, 2026
ACTION 1CHECK 14View full analysis

A security-focused maintenance release with fixes across filters, protocol handling, request processing, and JSON parsing. It also updates the Wasmtime dependency and disables the contrib extension envoy.network.connection_balance.dlb.

Action needed (1)

  • securityhighHighly nested JSON destructor stack overflow, corrected for CVE-2026-48042

    This release corrects the stack overflow in the destructor of highly nested JSON described by CVE-2026-48042 and GHSA-f24p-rxw2-g6pv.

Check if affected (14)

Source ↗
Strimzi1.0.1Networking & MessagingJun 17, 2026
ACTION 2CHECK 2View full analysis

A release focused on CRD compatibility and Entity Operator watching defaults, with fixes for disclosed security vulnerabilities. It affects deployments using older CRD APIs or configuring cross-namespace watching.

Action needed (2)

Check if affected (2)

  • breakingSupported CRD API versions narrowed

    Applies if you use the v1beta2, v1beta1, or v1alpha1 CRD APIs.

  • breakingEntity Operator cross-namespace watching default

    Applies if you configure STRIMZI_ENTITY_OPERATOR_WATCHED_NAMESPACE_ENABLED or watchedNamespace.

Source ↗
Ciliumv1.19.5Networking & MessagingJun 16, 2026
CHECK 3OTHER 48View full analysis

A maintenance-focused release with correctness fixes, dependency updates, operator troubleshooting improvements, and a security fix for a namespace-bypass issue. It also removes obsolete Helm settings, so configurations using those values need review.

Check if affected (3)

  • securityWildcard namespace bypass for selectorless ipBlock rules, fixed

    Applies if you configure ipBlock.

  • breakingThe loadBalancer.standalone Helm option, removed

    Applies if you configure loadBalancer.standalone.

  • breakingThe l2podAnnouncements.interface Helm value, replaced by l2podAnnouncements.interfacePattern

    Applies if you configure l2podAnnouncements.interface and enable L2 pod announcements.

Source ↗
Linkerdedge-26.6.2Networking & MessagingJun 16, 2026
CHECK 1OTHER 18View full analysis

A release with narrower ExternalWorkloads endpoint behavior, annotation support for upcoming load-balancing features, policy and profile fixes, dependency updates, and new load-biasing functionality. This release is explicitly not recommended in favor of edge-26.6.3.

Check if affected (1)

  • breakingNamespace-restricted ExternalWorkloads endpoints

    Applies if you use ExternalWorkloads.

Source ↗
NATSv2.12.11Networking & MessagingJun 9, 2026
CHECK 3OTHER 18View full analysis

A feature and behavior release for JetStream and server operations, with new capabilities alongside changed defaults and downgrade constraints. Operators using strict JetStream requests, insecure TLS cipher suites, or new v2.12 features should review the changed behavior; the release also fixes a JetStream regression.

Check if affected (3)

  • breakingInsecure TLS cipher suite default

    Applies if you enable allow_insecure_cipher_suites.

  • breakingJetStream strict mode default

    Applies if you use JetStream.

  • breakingDowngrade compatibility for new v2.12 features

    Applies if you use new v2.12 features.

Source ↗
gRPCv1.81.1Networking & MessagingJun 8, 2026
CHECK 1OTHER 3View full analysis

A maintenance release with fixes for correctness defects and a change to the default availability of the error_flatten experiment. It also includes an internal implementation change with no operator-facing impact.

Check if affected (1)

  • breakingThe error_flatten experiment, enabled in OSS

    Applicability is not stated in the release notes.

Source ↗
Istio1.30.1Networking & MessagingJun 4, 2026
ACTION 1CHECK 1OTHER 15View full analysis

A maintenance release with an Envoy denial-of-service security fix, defect corrections, new operator-facing capabilities, a dependency update, and removal of a feature-gate guard. The security fix addresses disclosed advisory CVE-2026-47774.

Action needed (1)

  • securityhighCVE-2026-47774 Envoy denial-of-service fix

    The fix addresses CVE-2026-47774 in Envoy, where specially crafted HTTP/2 requests could exhaust process memory because decoded header size was not fully limited during request validation.

Check if affected (1)

  • breakingPILOT_ENABLE_ALPHA_GATEWAY_API guard removed from ListenerSet

    Applies if you use the ListenerSet API.

Source ↗
Envoyv1.38.1Networking & MessagingJun 4, 2026
ACTION 1CHECK 4OTHER 2View full analysis

A maintenance release with HTTP/2 protections, an nghttp2 patch, and an OAuth2 HMAC verification fix. It also changes router response-body output and EDS batch load-balancer rebuild defaults, while the release notes include crash fixes in OAuth2 token-cookie decryption and dynamic HTTP filters.

Action needed (1)

  • securityhighnghttp2 patch for CVE-2026-27135

    The nghttp2 dependency includes the patch for CVE-2026-27135. The patched dependency ships in v1.38.1.

Check if affected (4)

  • securityhighHTTP/2 header-limit enforcement and cookie accounting

    Applies if you use HTTP/2 and do not enable envoy.reloadable_features.http2_include_cookies_in_limits.

  • securityOAuth2 HMAC verification timing side-channel fix

    Applies if you use oauth2.

  • breakingRouter transport-failure reason response body

    Applies if you use the router and do not enable envoy.reloadable_features.hide_transport_failure_reason_in_response_body.

  • + 1 more on the release page
Source ↗
Istio1.30.0Networking & MessagingMay 18, 2026
ACTION 1CHECK 1OTHER 33View full analysis

A feature release adds Gateway API, ambient-mode, telemetry, Helm, and operability capabilities. Authenticated XDS debug endpoints and the new default image registry are the changes most likely to affect deployment and operational configuration.

Action needed (1)

  • breakingDefault Istio image registry

    The default registry for Istio images is now registry.istio.io.

Check if affected (1)

  • breakingAuthentication required for XDS debug endpoints

    Applies if ENABLE_DEBUG_ENDPOINT_AUTH is set.

Source ↗
Istio1.29.3Networking & MessagingMay 18, 2026
ACTION 1CHECK 2OTHER 6View full analysis

A maintenance release adds Gateway API compatibility, analyzer and HBONE tuning capabilities, and fixes certificate, controller, probe, output, and authorization issues. The authorization fixes address cross-namespace configuration access and regex handling in AuthorizationPolicy.

Action needed (1)

  • securityCross-namespace access to istio.io/debug/syncz and istio.io/debug/config_dump

    Authorization is fixed so an authenticated workload cannot enumerate proxies or retrieve configuration dumps for workloads in other namespaces through istio.io/debug/syncz and istio.io/debug/config_dump.

Check if affected (2)

  • securityRegex handling in AuthorizationPolicy identity fields

    Applicability is not stated in the release notes.

  • breakingThe AMBIENT_ENABLE_AWS_BRANCH_ENI_PROBE setting and kubelet health probes

    Applies when ambient mesh pods run on AWS EKS and use Security Groups for Pods (branch ENI).

Source ↗
Ciliumv1.19.4Networking & MessagingMay 13, 2026
ACTION 2CHECK 1OTHER 46View full analysis

A maintenance release with several operator-visible fixes, narrower EndpointSlice watch behavior, Helm configurability, and dependency and image updates. The EndpointSlice filtering change affects configurations that set a service proxy name, while the release also updates the github.com/moby/spdystream dependency.

Action needed (2)

  • securityThe github.com/moby/spdystream module update

    The github.com/moby/spdystream module is updated to v0.5.1.

  • breakingService-label filtering for EndpointSlice watches

    The loadbalancer/reflectors component filters EndpointSlice watches by service labels.

Check if affected (1)

  • breakingLabel filtering for EndpointSlices

    Applies if you set --k8s-service-proxy-name.

Source ↗
Ciliumv1.17.16Networking & MessagingMay 13, 2026
ACTION 1CHECK 1OTHER 23View full analysis

A maintenance release with an enforced policy behavior change, bug fixes, new metrics, and Helm image overrides. It also updates dependencies and container images and refreshes container image manifests.

Action needed (1)

  • securityThe github.com/moby/spdystream dependency update

    The github.com/moby/spdystream module is updated to v0.5.1 in v1.17.16.

Check if affected (1)

  • breakingCiliumLocalRedirectPolicy addressMatcher override behavior

    Applies if you use addressMatcher in CiliumLocalRedirectPolicy and do not enable --enable-lrp-address-matcher-override=true.

Source ↗
Linkerdedge-26.5.1Networking & MessagingMay 1, 2026
CHECK 1OTHER 13View full analysis

This release narrows Kubernetes support to version 1.31 or newer. It also adds multicluster gateway configuration, reduces destination-controller memory usage, corrects namespace-aware service cleanup, and updates third-party dependencies.

Check if affected (1)

  • breakingMinimum supported Kubernetes version, 1.31

    Applies when your cluster runs Kubernetes older than 1.31.

Source ↗
NATSv2.14.0Networking & MessagingApr 30, 2026
CHECK 1OTHER 25View full analysis

A feature release adds JetStream, leafnode, configuration, and protocol capabilities alongside fixes. Operator attention is needed for the narrowed MQTT retained-message subject constraint and ACL updates when domain-aware acknowledgements and flow control are enabled; the Go toolchain version also changes.

Check if affected (1)

  • breakingThe retained-message subject constraint

    Applies if you use retained messages.

Source ↗
Strimzi1.0.0Networking & MessagingApr 28, 2026
ACTION 2CHECK 4OTHER 12View full analysis

A release that removes older CRD API versions, changes defaults and configuration locations, and adds Kafka and HTTP Bridge capabilities. Monitoring configurations and standalone Topic Operator setups may require updates.

Action needed (2)

  • breakingThe UseConnectBuildWithBuildah feature gate, enabled by default

    The UseConnectBuildWithBuildah feature gate moves to the beta stage and is enabled by default.

  • breakingThe /metrics endpoint, moved to the HTTP management interface

    The /metrics endpoint is no longer available on the regular HTTP interface, which uses port 8080 by default. It is now available on the HTTP management interface on port 8081.

Check if affected (4)

  • breakingOlder CRD API versions, removed

    Applies if you use the v1beta2, v1beta1, or v1alpha1 CRD APIs.

  • breakingThe Open Policy Agent (OPA) authorizer plugin, no longer bundled

    Applies if you use the Open Policy Agent (OPA) authorizer plugin.

  • breakingLegacy TLS environment variables, ignored

    Applies if you set any of STRIMZI_TLS_ENABLED, STRIMZI_TLS_AUTH_ENABLED, STRIMZI_PUBLIC_CA, STRIMZI_TRUSTSTORE_LOCATION, STRIMZI_TRUSTSTORE_PASSWORD, STRIMZI_KEYSTORE_LOCATION, or STRIMZI_KEYSTORE_PASSWORD.

  • + 1 more on the release page
Source ↗
Envoyv1.38.0Networking & MessagingApr 23, 2026
ACTION 1CHECK 6PLAN 1OTHER 77View full analysis

A release with breaking configuration and flag changes, many new extension and protocol capabilities, and fixes for security, correctness, and observability. The recorded additions include module and filter extension APIs, MCP and A2A protocol support, OpenSSL builds, new formatters and metrics, and expanded streaming and TLS capabilities.

Action needed (1)

  • securityhighnghttp2 **CVE-2026-27135** patch

    The nghttp2 **CVE-2026-27135** patch is included.

Check if affected (6)

  • securityURL encoding for query_parameter_mutations values

    Applies if you configure query_parameter_mutations.

  • securityRBAC concatenation-based bypass prevention

    Applies if RBAC runs.

  • breakingExplicit max_early_data_bytes configuration

    Applies if you configure upstream_connect_mode with a value other than IMMEDIATE and do not configure max_early_data_bytes.

  • + 3 more on the release page

Plan ahead (1)

  • deprecatedThe enforce_rsa_key_usage option, deprecatedremoval date not announced

    Applies if you configure enforce_rsa_key_usage.

Source ↗
Contourv1.33.4Networking & MessagingApr 20, 2026
CHECK 2OTHER 2View full analysis

A release with a fix for Lua code injection, a required Envoy version change, and an Envoy dependency update. It is tested against Kubernetes 1.32 through 1.34.

Check if affected (2)

  • securityhighCVE-2026-41246 fix for cookieRewritePolicies[].pathRewrite.value

    Applies if you use HTTPProxy resources.

  • breakingEnvoy 1.35.0 minimum version

    Applies if you depend on Envoy.

Source ↗
NATSv2.12.7Networking & MessagingApr 14, 2026
CHECK 3OTHER 15View full analysis

A maintenance release with a dependency and toolchain update, configuration constraint changes, performance improvements, and correctness fixes. It also fixes an ACL permission bypass along with issues affecting leaf connections, streams, storage, and client authentication.

Check if affected (3)

  • securityQueue subscription enforcement of ACL deny patterns

    Applies if you use queue subscriptions and configure non-queue ACL deny patterns.

  • breakingThe no_auth_user configuration field, restricted to client connections

    Applies if you configure no_auth_user.

  • breakingDuplicate INFO permission updates for solicited leaf connections

    Applies if you use solicited leaf connections.

Source ↗
NATSv2.11.16Networking & MessagingApr 14, 2026
CHECK 2OTHER 7View full analysis

This release updates the Go toolchain and corrects authorization, leafnode, and WebSocket behavior. Configuration rules for no_auth_user and duplicate leaf permission updates are narrower, so affected existing setups may require review.

Check if affected (2)

  • breakingThe no_auth_user connection scope restriction

    Applies if you configure no_auth_user.

  • breakingThe INFO permission update restriction

    Applies if you use solicited leaf connections.

Source ↗
Emissary-Ingressv4.0.1Networking & MessagingMar 26, 2026
ACTION 1CHECK 6OTHER 14View full analysis

A release with operator-facing compatibility changes, including feature removals, aligned chart and application versions, GHCR-only chart distribution, and a changed CRD conversion-webhook default. It also updates dependencies and the Python interpreter to resolve CVEs, with additional defect fixes and new service and architecture capabilities.

Action needed (1)

  • securityDependency and Python interpreter updates for CVE fixes

    Many dependencies and the Python interpreter were updated to resolve CVEs.

Check if affected (6)

  • breakingCustom error responses and header-case mangling, removed

    Applies if you use Ambassador Edge Stack's custom error responses or header-case mangling features.

  • breakingHelm chart and Emissary version alignment

    Applies if you use the Helm chart.

  • breakingGHCR-only Helm chart distribution

    Applies if you use Emissary's Helm charts.

  • + 3 more on the release page
Source ↗
gRPCv1.80.0Networking & MessagingMar 26, 2026
CHECK 1OTHER 8View full analysis

This release adds TLS, certificate, xDS, and C++ credential capabilities, and changes EventEngine defaults and support. It also corrects an OpenBSD sizing defect and changes RR and WRR connection behavior.

Check if affected (1)

  • breakingEventEngine defaults and fork support

    Applies if you use Python or Ruby.

Source ↗
NATSv2.12.6Networking & MessagingMar 24, 2026
ACTION 1CHECK 13OTHER 36View full analysis

A maintenance release with multiple security fixes, tighter JWT and MQTT-related enforcement, and dependency manifest updates. It also includes correctness fixes and improvements across networking, monitoring, clustering, and JetStream.

Action needed (1)

  • breakingJWT size limit

    JWTs now have a 1MB size limit.

Check if affected (13)

  • securityhighMQTT security fixes

    Applies if you use MQTT.

  • securityhighLeafnode security fix

    Applies if you use leafnodes.

  • securityhighCommand-line credential security fix

    Applies if you provide credentials on the command line.

  • + 10 more on the release page
Source ↗
NATSv2.11.15Networking & MessagingMar 24, 2026
ACTION 1CHECK 11OTHER 22View full analysis

A maintenance release with multiple disclosed security fixes, correctness fixes, stricter validation and permission constraints, and dependency and toolchain updates. It also includes fixes across MQTT, JetStream, leafnodes, WebSockets, monitoring, and clustering.

Action needed (1)

  • breakingThe JWT size limit

    JWTs now have a 1MB size limit.

Check if affected (11)

Source ↗
Contourv1.33.3Networking & MessagingMar 23, 2026
ACTION 2CHECK 1OTHER 1View full analysis

A maintenance release with security-related dependency updates and removal of the hostPort setting from example manifests. It also documents compatibility testing with Kubernetes 1.32 through 1.34.

Action needed (2)

  • securitycriticalgoogle.golang.org/grpc v1.79.3 update

    google.golang.org/grpc is updated to v1.79.3, which addresses CVE-2026-33186 and GHSA-p77j-4mvh-x3m3. Contour is not affected by this advisory.

  • securityEnvoy v1.35.9 update

    The Envoy dependency is updated to v1.35.9 to address security vulnerabilities.

Check if affected (1)

  • breakingRemoval of hostPort: 8002 from example manifests

    Applies if you use hostPort in example manifests.

Source ↗
Contourv1.32.4Networking & MessagingMar 23, 2026
ACTION 2CHECK 1OTHER 1View full analysis

A maintenance release with updated Envoy and gRPC dependencies, plus a change to the example manifests. It is tested against Kubernetes 1.31 through 1.33.

Action needed (2)

  • securitycriticalgoogle.golang.org/grpc updated to v1.79.3

    google.golang.org/grpc is updated to v1.79.3, which addresses CVE-2026-33186 and GHSA-p77j-4mvh-x3m3. Contour is not affected.

  • securityEnvoy updated to v1.34.13

    Envoy is updated to v1.34.13 to address security vulnerabilities and improve stability.

Check if affected (1)

  • breakinghostPort: 8002 removed from example manifests

    Applies if hostPort: 8002 is configured in example manifests.

Source ↗
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