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Releases

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

OpenTelemetryv0.154.0ObservabilityJun 8, 2026

This is a maintenance release centered on configuration and generated-code behavior. It also changes an existing builder flag's effect on module regeneration and addresses runtime and validation issues.

Source
KEDAv2.20.1Orchestration & ManagementJun 8, 2026

KEDA v2.20.1 is a maintenance release focused on operator-visible correctness. The documented fixes affect concurrent scaling behavior and scaler-watch event reporting.

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gRPCv1.81.1Networking & MessagingJun 8, 2026

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
Open Policy Agent (OPA)v1.17.1SecurityJun 8, 2026

A security-focused maintenance release updates the Go toolchain used to build official OPA binaries to address two disclosed standard-library vulnerabilities affecting OPA's HTTP handler and crypto builtins. Users who build their own binaries or images manage the Go version themselves.

Action needed (1)

  • securitymediumThe Go 1.26.4 build toolchain update

    OPA is built with Go 1.26.4 in this release. The update fixes standard-library vulnerabilities used by OPA's HTTP handler and crypto builtins, identified as GO-2026-5037 and GO-2026-5039.

Source
Crossplanev1.20.9Orchestration & ManagementJun 5, 2026

This Crossplane release combines dependency maintenance with a new CLI check for upgrade readiness. The check scans a live v1.x control plane for features removed or changed in Crossplane v2 and reports what would break before an upgrade.

Action needed (1)

  • securityThe golang.org/x/net module, updated to v0.55.0

    The golang.org/x/net module is updated to v0.55.0 in Crossplane v1.20.9. The release note marks this dependency update as security-related, but does not identify a specific vulnerability.

Source
Cortexv1.21.1ObservabilityJun 5, 2026

A maintenance release with operator-facing security fixes and configuration changes across ingestion, distribution, and status pages. It also includes fixes for request handling, authentication, configuration exposure, gossip limits, and client and runtime panics.

Check if affected (3)

  • securityStored XSS protection in Alertmanager and Store Gateway status pages

    Applies if you run Alertmanager or Store Gateway.

  • securityWrappedHistogram native histogram size limit

    Applies if you use native histograms.

  • breakingDecompressed gzip output limit for ParseProtoReader and OTLP ingestion

    Applies if you use the OTLP ingestion path.

Source
OpenFGAv1.17.1SecurityJun 5, 2026

OpenFGA v1.17.1 combines correctness fixes with security-related Go toolchain and image dependency updates. The security updates address Go standard library vulnerabilities in the toolchain and released images.

Action needed (2)

  • securityThe Go toolchain, updated to 1.26.4

    OpenFGA v1.17.1 updates the Go toolchain version to 1.26.4 to address Go standard library vulnerabilities.

  • securitygrpc-health-probe updated to v0.4.52

    Released images update grpc-health-probe to v0.4.52, rebuilt with Go 1.26.4, so they no longer ship the Go standard library vulnerabilities addressed by this update.

Source
Linkerdedge-26.6.1Networking & MessagingJun 5, 2026

Linkerd edge-26.6.1 fixes an HTTP body size-limit defect and updates several dependencies and the proxy component. No security advisories or security-specific flaws are described.

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Istio1.29.4Networking & MessagingJun 4, 2026

A maintenance release with a security fix for Envoy and operator-relevant correctness fixes across Istio ambient, gateway, routing, and CNI behavior. It also adds automatic fallback from the nftables backend to iptables when the bundled nft binary lacks JSON support.

Action needed (1)

  • securityhighCVE-2026-47774 Envoy memory exhaustion fix

    CVE-2026-47774 fixes an Envoy memory exhaustion issue in which specially crafted HTTP/2 requests could bypass request header size accounting and trigger excessive memory use. The fix ships in Envoy.

Source
Istio1.28.8Networking & MessagingJun 4, 2026

A maintenance release with a disclosed Envoy denial-of-service fix and additional correctness fixes. The security fix addresses memory exhaustion from specially crafted HTTP/2 requests, while the other corrections do not require setup changes.

Action needed (1)

  • securityhighThe Envoy denial-of-service vulnerability CVE-2026-47774, fixed

    CVE-2026-47774 fixes an Envoy denial-of-service vulnerability in which specially crafted HTTP/2 requests could cause excessive memory consumption. The fix accounts for cookie header bytes during request header size validation and limits total decoded header size in HPACK processing.

Source
Istio1.30.1Networking & MessagingJun 4, 2026

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

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
Keycloak26.6.3SecurityJun 4, 2026

A security-focused maintenance release with fixes spanning OIDC, authorization and account APIs, identity features, federation, WebAuthn, SAML, Netty, and lodash. It also updates dependencies and adds startup and SPI behavior alongside numerous correctness fixes.

Action needed (2)

  • securityhighCVE-2026-4800 lodash code injection

    CVE-2026-4800 is addressed in the account UI, where lodash was vulnerable to code injection.

  • securitymediumCVE-2026-42581 Netty HTTP/1.0 smuggling sanitization

    CVE-2026-42581 is addressed in Netty, correcting HTTP/1.0 TE and CL coexistence that bypassed smuggling sanitization.

Check if affected (15)

Source
Envoyv1.37.3Networking & MessagingJun 4, 2026

A maintenance release focused on security and correctness fixes. The remaining heading-only items have no operator-facing changes.

Action needed (1)

  • securityhighnghttp2 CVE-2026-27135 patch

    The nghttp2 CVE-2026-27135 patch is applied in the release.

Check if affected (2)

  • securityhighHTTP/2 header list limits and cookie accounting

    Applies if you use HTTP/2.

  • securityOAuth2 HMAC verification timing

    Applies if you use oauth2.

Source
Envoyv1.36.7Networking & MessagingJun 4, 2026

Envoy v1.36.7 is a security-focused update with changes to HTTP/2 handling and OAuth2 authentication. It also includes an nghttp2 security patch, so deployments using these components are directly affected.

Action needed (1)

  • securityhighThe nghttp2 CVE-2026-27135 patch

    Envoy v1.36.7 applies the nghttp2 patch for CVE-2026-27135 in its HTTP/2 handling.

Check if affected (2)

  • securityhighHTTP/2 header-limit enforcement and cookie accounting

    Applies if you use HTTP/2 with configured header list or request-header limits.

  • securityOAuth2 HMAC verification timing side-channel fix

    Applies if you use the OAuth2 filter.

Source
Envoyv1.35.11Networking & MessagingJun 3, 2026

Envoy v1.35.11 is a security-focused release with fixes in HTTP/2, OAuth2, and nghttp2. It also includes ordinary bug fixes and new statistics capabilities, while the security changes are the ones that require upgrading.

Action needed (1)

  • securityhighThe nghttp2 CVE-2026-27135 patch

    Envoy v1.35.11 applies the nghttp2 patch for CVE-2026-27135.

Check if affected (2)

  • securityhighHTTP/2 header limits and cookie accounting

    Applies if you use HTTP/2 request header limits.

  • securityOAuth2 HMAC verification timing protection

    Applies if you use OAuth2 HMAC verification.

Source
KubeVirtv1.8.3Orchestration & ManagementJun 3, 2026

A maintenance release with a fix for symlink traversal, a gRPC dependency update addressing GHSA-p77j-4mvh-x3m3, and deprecated recording rules. It also contains correctness fixes across VM status reporting, device resource handling, live migration, alerts, and VM operations.

Action needed (2)

  • securitycriticalgoogle.golang.org/grpc update to 1.79.3

    The google.golang.org/grpc dependency is bumped to 1.79.3 to remediate GHSA-p77j-4mvh-x3m3.

  • securitySymlink traversal fix in the VMExport directory handler

    The VMExport directory handler is fixed to prevent symlink traversal.

Plan ahead (1)

  • deprecatedDeprecated kubevirt_vm_created_total and kubevirt_vm_created_by_pod_total recording rules

    Applies if you use kubevirt_vm_created_total or kubevirt_vm_created_by_pod_total.

Source
KubeVirtv1.7.4Orchestration & ManagementJun 3, 2026

KubeVirt v1.7.4 includes correctness fixes and behavior changes affecting PCI topology and IPv6 migration. It also updates the gRPC dependency to address CVE-2026-33186.

Action needed (1)

  • securitycriticalThe google.golang.org/grpc dependency update for CVE-2026-33186

    KubeVirt v1.7.4 updates google.golang.org/grpc to version 1.79.3 to remediate CVE-2026-33186.

Source
KubeVirtv1.6.6Orchestration & ManagementJun 3, 2026

KubeVirt v1.6.6 includes a dependency update for CVE-2026-33186. The recorded change affects the gRPC dependency shipped with this release.

Action needed (1)

  • securitycriticalgoogle.golang.org/grpc update for CVE-2026-33186

    KubeVirt v1.6.6 bumps google.golang.org/grpc to remediate CVE-2026-33186.

Source
Jaegerv2.19.0ObservabilityJun 3, 2026

This release adds API and storage capabilities, updates API query naming and defaults, and includes correctness fixes. No security advisories or security-specific fixes are disclosed.

Action needed (1)

  • breakingThe searchdepth default in the trace-summaries endpoint

    The default for searchdepth changed in the trace-summaries endpoint.

Source
wasmCloudv2.3.0Orchestration & ManagementJun 3, 2026

Version v2.3.0 adds workload configuration and telemetry capabilities while correcting wash and runtime defects. It also changes RBAC scope support and updates dependencies, including security patches and reported advisory fixes.

Action needed (2)

  • securityThe wasmtime 44.0.2 security patch

    The release updates wasmtime to 44.0.2 as a security patch.

  • securityReported dependency security advisories

    The dependency set includes patches for reported security advisories.

Source
CRI-Ov1.35.4Kubernetes CoreJun 3, 2026

This release contains no operator-facing changes in the provided release information. There are no recorded updates to assess for CRI-O v1.35.4.

Source
CRI-Ov1.36.1Kubernetes CoreJun 3, 2026

This release contains operator-facing corrections to container status image references and to debug logging for List* RPC calls. The recorded changes address a correctness issue after CRI-O restarts and reduce log verbosity to improve performance.

Source
CRI-Ov1.33.13Kubernetes CoreJun 3, 2026

This cri-o release, v1.33.13, contains a documented operator-facing correctness fix. The fix addresses a race condition that could cause cri-o to report exit code 255 when a container exits quickly.

Source
containerdv2.1.8Kubernetes CoreJun 2, 2026

containerd v2.1.8 includes a disclosed security correction identified by CVE-2026-46680 and GHSA-fqw6-gf59-qr4w. The release also contains operator-facing runtime and snapshotter changes in its broader changelog.

Action needed (1)

  • securityhighCVE-2026-46680 security correction

    containerd v2.1.8 includes a correction for CVE-2026-46680, associated with GHSA-fqw6-gf59-qr4w.

Source
Rookv1.20.0Storage & DataJun 2, 2026

A breaking release for CSI configuration also changes unused CRUSH rule handling and supported Kubernetes versions. It adds storage and object-store capabilities, including SSE-S3 with Vault Agent authentication, object-store account management, and encrypted OSD disk expansion.

Check if affected (2)

  • breakingCeph CSI operator for driver settings

    Applies if you configure CSI driver settings.

  • breakingROOK_DELETE_UNUSED_CRUSH_RULES default

    Applies if the Ceph mgr is running.

Source
OpenFGAv1.17.0SecurityJun 2, 2026

OpenFGA v1.17.0 adds configurable trace sampling and changes cache key generation. The release concerns deployments that configure tracing or depend on cache key behavior.

Action needed (1)

  • securityTLV-based cache key generation

    OpenFGA v1.17.0 redesigns cache key generation with TLV binary encoding, removing collision risk from string concatenation. It also adds per-process hash seeding to prevent hash-flooding attacks.

Source
NATSv2.14.2Networking & MessagingJun 2, 2026

This release adds an API capability and updates the Go toolchain. It also contains correctness and performance fixes across protocol handling, monitoring, clustering, and stream and consumer operations.

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NATSv2.12.10Networking & MessagingJun 2, 2026

NATS v2.12.10 combines a new client API capability with correctness fixes across protocol handling, monitoring, clustering, and storage. It also changes stream and consumer constraints and scale-down behavior, removes a filestore check, and updates the Go toolchain.

Source
Longhornv1.12.0Storage & DataJun 2, 2026

A broad maintenance and feature release combines bug fixes with new capabilities, configuration options, and platform support. It also changes defaults, tightens operational constraints, and removes V2 Backing Images.

Check if affected (5)

  • breakingV2 Backing Images removal

    Applies if you use V2 Backing Images.

  • breakingThe data-engine-cpu-mask default, changed

    Applies if you do not configure data-engine-cpu-mask.

  • breakingLive migration constraint for older CLI API versions

    Applies if you use an engine image with a CLI API version older than 12.

  • + 2 more on the release page
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Knativeknative-v1.22.1Orchestration & ManagementJun 2, 2026

This release contains dependency upgrades with embedded correctness fixes. The recorded changes do not include item-level details beyond those upgrades.

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Knativeknative-v1.21.3Orchestration & ManagementJun 2, 2026

knative-v1.21.3 is a maintenance release for Knative. It includes a correction for a non-constant format string error and updates to project dependencies. No security advisories or security-specific flaws are identified.

Source
etcdv3.6.12Kubernetes CoreJun 1, 2026

A maintenance release with server and tooling fixes, an expanded maintenance-status access rule, and a Go toolchain dependency update. The documented fixes concern operators who depend on the prior maintenance restriction or the corrected server and build behavior.

Source
etcdv3.5.31Kubernetes CoreJun 1, 2026

A maintenance release with correctness fixes and dependency updates. The golang.org/x/crypto update addresses GO-2026-5026.

Action needed (1)

  • securitycriticalThe golang.org/x/crypto dependency update for GO-2026-5026

    The golang.org/x/crypto dependency is updated to v0.52.0 to address GO-2026-5026.

Source
etcdv3.4.45Kubernetes CoreJun 1, 2026

A maintenance release that ends support for the v3.4 line and updates the Go toolchain used to compile binaries. No further patches will be issued for v3.4.

Plan ahead (1)

  • deprecatedThe v3.4 line, end of support

Source
Daprv1.17.9Orchestration & ManagementJun 1, 2026

This release corrects a workflow retention purge failure for Azure Cosmos DB when the customStatus row is absent. Affected workflows recover automatically after upgrading to v1.17.9, with no manual scheduler intervention required.

Source
OpenFeaturecore/v0.16.0CI/CD & App DeliveryJun 1, 2026

Core v0.16.0 changes disabled-flag evaluations from returning an error to succeeding with reason DISABLED; resolved values remain unchanged and still use the caller-provided default. The compatibility change affects consumers that inspect reason or errorCode, call flagd directly over gRPC or OFREP, or import core/pkg/model.

Source
OpenFeatureflagd/v0.16.0CI/CD & App DeliveryJun 1, 2026

flagd v0.16.0 changes evaluation of disabled flags. Disabled flags now resolve successfully with reason=DISABLED instead of returning a FLAG_DISABLED error.

Source
KEDAv2.20.0Orchestration & ManagementJun 1, 2026

This release adds scalers, configuration options, metrics, authentication modes, and compatibility improvements. Operators with custom RBAC need to account for the Kubernetes events API migration, and users of removed scaler settings need to update their configurations.

Check if affected (7)

  • securityCredential headers on cross-host redirects and HTTPS downgrades

    Applicability is not stated in the release notes.

  • breakingScaledObject name length validation

    Applies when a ScaledObject name exceeds 63 characters.

  • breakingPositive unprocessedEventThreshold values

    Applies if you configure a non-positive unprocessedEventThreshold.

  • + 4 more on the release page

Plan ahead (1)

  • deprecatedThe buildId, selectAllActive, and selectUnversioned settings, deprecated

    Applies if you configure buildId, selectAllActive, or selectUnversioned.

Source
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