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

Aug 2026Clear ×

Prometheusv3.14.0ObservabilityAug 18, 2026

ACTION 1CHECK 1PLAN 1OTHER 39View full analysis

A maintenance release with an API deprecation, operator-visible removals and default changes, new capabilities, performance improvements, and correctness fixes across discovery, PromQL, TSDB, and other components. No security advisories or explicitly described security vulnerabilities are included.

Action needed (1)

breakingDefault support for PromQL duration expressions
Duration expressions are enabled by default in PromQL. The promql-duration-expr feature flag is now a no-op.

Check if affected (1)

breakingThe __meta_hetzner_datacenter label, removed
Applies if you use hcloud targets.

Plan ahead (1)

deprecatedThe stats query parameter, deprecated for other valuesremoval date not announced
Applies if you set stats to a value other than true or all.

Source ↗

Chaos Meshv2.8.4ObservabilityAug 18, 2026

OTHER 5View full analysis

A maintenance release with fixes to operator-visible Dashboard behavior and Helm chart rendering. The changes address Dashboard serving, workflow schedule details, authentication, token controls, and extra-object template rendering.

Source ↗

OpenTelemetryv0.159.0ObservabilityAug 17, 2026

CHECK 2OTHER 6View full analysis

A release that adds exporter queue batching controls, changes exporter and scraper metric behavior, and updates public API field shapes. Schema-based configuration migrations are also included, with no security advisories or security fixes disclosed.

Check if affected (2)

breakingThe confighttp.ServerConfig field shape in Config
Applies if you use extension/zpages.
breakingThe configauth.Config field shape in AuthConfig
Applies if you use configauth.Config.

Source ↗

OpenCostv1.121.1ObservabilityAug 5, 2026

OTHER 5View full analysis

OpenCost v1.121.1 adds opt-in Athena query-result reuse configuration and NAT gateway cost metrics to OpenCost scrapes, and updates the Kubernetes dependency to k8s.io/apimachinery 0.36.3. Athena result reuse applies only to query engine v3, has no effect on v2 workgroups, and AWS limits MaxAgeInMinutes to 10080 minutes. No security advisories or security fixes are disclosed.

Source ↗

OpenTelemetryv0.158.0ObservabilityAug 4, 2026

CHECK 1OTHER 9View full analysis

OpenTelemetry v0.158.0 adds a replacement processor and configuration-schema capabilities, along with changes to component maturity and several defect corrections. It also removes the pkg/xconfmap validation API in favor of symbols in confmap.

Check if affected (1)

breakingThe pkg/xconfmap validation symbols, renamed
Applies if you use pkg/xconfmap's Validator or Validate symbols.

Source ↗

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