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

Project: JaegerClear ×

Jaegerv2.20.0ObservabilityJul 20, 2026

ACTION 1CHECK 3PLAN 1OTHER 27View full analysis

A release with backend compatibility removals, forced migrations, new configuration and CLI capabilities, and correctness fixes across storage, extensions, and related components. It does not disclose security advisories or security-specific flaws.

Action needed (1)

breakingTemplate creation through esclient
Template creation moves to esclient, and legacy mapping rendering is retired.

Check if affected (3)

breakingSupport for elasticsearch v6, removed
Applies if you use elasticsearch v6.
Support for elasticsearch v6 is removed from the Elasticsearch backend in this release.
breakingThe jaegermcp extension, merged into jaegerquery
Applies if you use the jaegermcp extension.
The jaegermcp extension is merged into the jaegerquery extension.
breakingExpired stable feature gates, removed
Applicability is not stated in the release notes.
Expired stable feature gates are removed from storage.

Plan ahead (1)

deprecatedThe legacy flag, deprecated
Applies if you use legacy flag.
The legacy flag is deprecated in this release.

Source ↗

Jaegerv2.19.0ObservabilityJun 3, 2026

ACTION 1OTHER 15View full analysis

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 ↗

Jaegerv2.18.0ObservabilityMay 13, 2026

ACTION 2OTHER 23View full analysis

A release with breaking removals, API and metric changes, bug corrections, and experimental capabilities. It also adds storage, MCP, UI, and tracing functionality, with no security advisories or security-specific fixes disclosed.

Action needed (2)

breakingThe min step api in metricstore, removed
The min step api was removed from metricstore in this release.
breakingThe non-standard health MCP tool, removed
The non-standard health MCP tool was removed from jaegermcp in this release.

Source ↗

Jaegerv2.16.0ObservabilityMar 7, 2026

ACTION 1CHECK 2OTHER 5View full analysis

A release with breaking configuration and API changes, a Go 1.25.7 requirement, new capabilities, and bug and performance fixes. No security advisories or security-specific fixes are identified.

Action needed (1)

breakingGo 1.25.7 requirement
The codebase now requires Go 1.25.7, with Go version consistency enforced across the codebase.

Check if affected (2)

breakingLegacy response format of the remote sampling endpoint, removed
Applies if you use the remote sampling endpoint.
The legacy response format is removed from the remote sampling endpoint.
breakingtraces.topic renamed to traces.topics
Applies if you configure traces.topic.
The Kafka receiver configuration replaces traces.topic with traces.topics.

Source ↗

Jaegerv2.15.1ObservabilityFeb 9, 2026

ACTION 1OTHER 2View full analysis

This release removes a deprecated v1 adapter wrapper and changes the default span kind in API v3 operations. The remaining release notes do not describe distinct operator-facing changes.

Action needed (1)

breakingDeprecated protofromtraces wrapper removal
The deprecated protofromtraces wrapper has been removed from v1adapter.

Source ↗

Jaegerv2.15.0ObservabilityFeb 6, 2026

CHECK 1OTHER 16View full analysis

Jaeger v2.15.0 introduces a breaking constraint for trace and metric storage configuration. It also adds experimental MCP and ClickHouse capabilities, corrects API behavior, and includes an internal implementation change without direct operator impact.

Check if affected (1)

breakingTrace and metric storage configuration backend constraint
Applies if you configure trace or metric storage with more than one backend type.
Jaeger v2.15.0 restricts trace and metric storage configurations to exactly one backend type.

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.
All remaining v1 utilities are now published as v2.x.x versions.
breakingThe UI theme selector, enabled by default
Applies if you use the UI.
The theme selector is enabled by default in the UI, including the dark theme selection.
breakingThe storage/v1/grpc interface, removed
Applies if you use storage/v1/grpc.
The storage/v1/grpc storage interface is removed from the release.
+ 6 more on the release page

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