Releases

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

URGENCY

All Action needed Check if affected Plan ahead

KIND

Category

All AI & ML CI/CD & App Delivery Kubernetes Core Networking & Messaging Observability Orchestration & Management Provisioning & Runtime Security Storage & Data

Jul 2026Clear ×

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 ↗

NATSv2.12.14Networking & MessagingJul 30, 2026

ACTION 1CHECK 2OTHER 33View full analysis

A maintenance release with a Go toolchain update, dependency manifest updates, JetStream performance and configuration changes, and numerous correctness fixes. Authentication fixes address security flaws and require upgrading.

Action needed (1)

breakingThe disk concurrency semaphore, increased to 4096 slots
The disk concurrency semaphore is now set to 4096 slots, up from the previous CPU-scaled count. This performance change ships in v2.12.14.

Check if affected (2)

securityAuthentication checks with no_auth_user and auth callouts
Applies if you configure no_auth_user and use auth callouts.
securityTLS verify_and_map authentication with blank passwords
Applies if you use TLS and configure verify_and_map.

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-26.7.2Networking & MessagingJul 24, 2026

OTHER 31View full analysis

Linkerd edge-26.7.2 contains no functional changes. It updates runtime, build, and development dependencies, with no security advisories disclosed or referenced.

Source ↗

gRPCv1.83.0Networking & MessagingJul 22, 2026

CHECK 1View full analysis

This release includes a security-related default change in TLS key exchange. The change affects deployments that use TLS key exchange.

Check if affected (1)

securityPost-Quantum Cryptography as the default for TLS key exchange
Applies when TLS key exchange is used.

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 ↗

Ciliumv1.18.12Networking & MessagingJul 16, 2026

OTHER 20View full analysis

Cilium v1.18.12 adds Gateway access-log configuration and BYOCNI loopback support. It also fixes policy, startup, Gateway validation, IPAM, and metric-label defects, while updating shipped images and dependencies; no security advisories or security-specific flaws are disclosed.

Source ↗

Ciliumv1.17.18Networking & MessagingJul 16, 2026

OTHER 10View full analysis

Cilium v1.17.18 contains ordinary correctness fixes, a new BYOCNI loopback capability, and dependency and image updates. No security advisories or operator actions are identified.

Source ↗

Istio1.29.6Networking & MessagingJul 16, 2026

OTHER 5View full analysis

Istio 1.29.6 is a correctness-focused maintenance release. The fixes address ambient traffic draining, HBONE capability propagation, ambient CNI responsiveness, Istiod memory use, and cross-network traffic through east-west gateways.

Source ↗

Istio1.30.3Networking & MessagingJul 16, 2026

OTHER 14View full analysis

Istio 1.30.3 is a maintenance release focused on operator-facing updates, performance work, and defect corrections. The listed release material includes fixes across certificate rotation, ambient mode, waypoint routing, multicluster behavior, and Istiod scalability.

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 maintenance release raises Python's minimum supported protobuf version from 6.33.5 to 7.35.1. It contains no other operator-facing changes.

Check if affected (1)

breakingPython protobuf dependency lower bound update
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 ↗

Istio1.28.10Networking & MessagingJul 1, 2026

OTHER 1View full analysis

Istio 1.28.10 contains an operator-relevant correctness fix in the krt controller framework. The available release information does not include a standalone change item for this fix.

Source ↗

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