Releases

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

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All Action needed Check if affected Plan ahead

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

Jan 2026Clear ×

Prometheusv3.9.0ObservabilityJan 7, 2026

ACTION 1CHECK 1OTHER 34View full analysis

This release updates histogram collection and TSDB behavior while adding capabilities across the API, PromQL, storage, and UI. It also includes fixes for query handling, storage validation, receivers, and interface behavior.

Action needed (1)

breakingA 10,000-set limit for the TSDB status endpoint
The TSDB status endpoint now limits responses to a maximum of 10,000 sets of statistics.

Check if affected (1)

breakingThe native-histogram feature flag has no effect
Applies if you set scrape_native_histograms to collect Native Histogram samples from exporters.

Source ↗

Jaegerv2.14.0ObservabilityJan 2, 2026

CHECK 9OTHER 20View full analysis

A release focused on removing legacy v1 components and storage interfaces, while changing configuration and UI defaults. It also adds or expands experimental storage capabilities and includes fixes for storage behavior and dependency API changes.

Check if affected (9)

breakingRemaining v1 utilities published as v2.x.x versions
Applies if you use v1 utilities.
breakingThe UI theme selector, enabled by default
Applies if you use the UI.
breakingThe storage/v1/grpc interface, removed
Applies if you use storage/v1/grpc.
+ 6 more on the release page

Source ↗

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