Thanos v0.42.4 contains no described operator-facing changes in the supplied release information. The available note is a duplicate mention.
Source ↗Releases
AI-analyzed release notes for CNCF graduated and incubating projects.
Prometheus v3.13.2 updates dependencies for two disclosed vulnerabilities and includes related transitive dependency upgrades. It also fixes a PromQL SIGBUS crash when the data disk is full.
Action needed (2)
securityhigh
golang.update for CVE-2026-56852org/x/text golang.updates from v0.38.0 to v0.39.0 in Prometheus v3.13.2 for CVE-2026-56852.org/x/text securityhigh
google.update for GHSA-hrxh-6v49-42gfgolang. org/grpc google.updates from v1.81.1 to v1.82.1 in Prometheus v3.13.2 for GHSA-hrxh-6v49-42gf.golang. org/grpc
This release contains a receive shutdown regression correction. Blocks are uploaded before TSDB shutdown completes, preserving upload behavior during shutdown.
Source ↗This release adds configuration and feature-gate capabilities, corrects defects, changes histogram bucket values, and introduces the configstorage module. It also removes or deprecates API symbols, with no security issues or advisories identified.
Check if affected (1)
breakingThe
BalancerNamefunction, removedApplies if you use
BalancerName.
Plan ahead (1)
deprecatedThe
WithForceUnmarshaleroption, deprecatedApplies if you use
WithForceUnmarshaler.
This release combines new cost data and collection capabilities with operational updates. Endpoint access defaults change, and the release includes corrections across pricing, pagination, request handling, providers, and serialization.
Check if affected (1)
breakingEndpoint defaults, deactivated without an admin token
Applies if you use endpoints without setting an admin token.
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
esclientTemplate creation moves to
esclient, and legacy mapping rendering is retired.
Check if affected (3)
breakingSupport for
elasticsearch v6, removedApplies if you use
elasticsearch v6.breakingThe
jaegermcpextension, merged intojaegerqueryApplies if you use the
jaegermcpextension.breakingExpired stable feature gates, removed
Applicability is not stated in the release notes.
Plan ahead (1)
deprecatedThe
legacy flag, deprecatedApplies if you use
legacy flag.
Nothing here needs operator attention.
Source ↗A maintenance release corrects overly small timeouts in the Receiver's Shipper component. The change is recorded in the release notes as "receive: bump timeouts".
Source ↗Release 3.31.0 contains a dependency update addressing vulnerabilities in graphql/server. It also includes correctness fixes across probes, GraphQL, authentication, infrastructure, and experiment handling.
Action needed (1)
securityDependencies in
graphql/serverupdatedDependencies in
graphql/serverare updated to fix vulnerabilities. The update ships in Release 3.31.0.
A maintenance release fixes a TSDB head-chunk cache defect. After head-chunk truncation, range queries no longer receive samples from the wrong chunk or spurious not-found errors.
Source ↗Prometheus v3.5.5 includes a Go 1.25.12 toolchain change and a disclosed security fix in the UI. The security fix concerns the sanitize-html dependency and CVE-2026-53606.
Action needed (1)
securitymediumThe
sanitize-htmldependency update for CVE-2026-53606The Prometheus UI updates
sanitize-htmlto v2.17.5 to fix CVE-2026-53606.
A release with security corrections, breaking configuration removals, and an output-field rename that may require operator or log-collector changes. It also adds TLS and cache configuration, query and tracing changes, and defect fixes across several Thanos components.
Action needed (1)
securitycritical
thanos-community/grpc-gofork update for CVE-2026-33186The
thanos-community/grpc-gofork is bumped to fix CVE-2026-33186, an authorization bypass via malformed:pathheaders.
Check if affected (4)
security
Receivetenant ID validationApplies if you run
Receive.breaking
Query-Frontendtime_takenfield renamed totime_taken_msApplies if you run
Query-Frontend.breaking
--shipper.flag removedignore-unequal-block-size Applies if you configure
--shipper..ignore-unequal-block-size - + 1 more on the release page
OpenTelemetry v0.156.0 adds mdatagen and memory-limiter capabilities, changes generated configuration APIs, and corrects runtime and API defects. No security advisories or security-specific fixes are disclosed.
Source ↗A long-term support release with security-related dependency updates, PromQL changes, new APIs and configuration controls, and bug fixes. It also replaces a shipped license artifact and includes performance improvements.
Action needed (2)
securitycriticalThe
sanitize-htmldependency updateThe UI updates
sanitize-htmlto address a cross-site scripting vulnerability, identified as CVE-2026-44990.breakingThe third-party license artifact
Third-party npm dependency licenses are embedded in the Prometheus binary and served at
/assets/third-party-licenses.. This replaces thetxt npm_licenses.archive previously shipped in release tarballs and container images.tar. bz2
Check if affected (2)
securitymediumRedirect credential forwarding
Applies if you use scraping, remote read/write, alerting, or service discovery.
breakingPromQL duration-expression function names
Applies if you enable
experimental-duration-exprand usemin()andmax().