web/api: add search API endpoint#18573
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Overall looks good @roidelapluie ... I have left a couple of comments for you to consider.
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Mostly looks good by now, but please see my comments.
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Another round of Claude findings, e.g. limiting of the search term count per request (a DoS vector). It seems to have exhausted its potential findings now.
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Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com>
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Provenance-includes-location must point at code, not pull requests. The previous commit's prometheus/prometheus#18573 links are removed from filters.go, params.go, filters_test.go (where they were the only attribution) and from ingester.proto and storepb/rpc.proto (where they sat alongside Cortex/Thanos file-origin provenance). mergesearch.go's blob/main/storage/generic.go provenance is unaffected (it points at real code) and remains in place. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com>
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#### What this PR does This is the first PR for the implementation of a new streaming labels/values search API. See prometheus/proposals#74. This PR leverages Prometheus vendored storage interface changes and search/filter utilities. For reference - noting not all of these are merged as yet. * prometheus/prometheus#18405 * prometheus/prometheus#18402 * prometheus/prometheus#18576 * prometheus/prometheus#18497 * prometheus/prometheus#18573 This PR focuses on the Searcher implementation which will run on the Ingester and Store-Gateways. The changes are at the gRPC boundary into these components. Once this PR is merged, the next PR will focus on the Querier and fan-out of the search requests to the changes made in this PR. TBD - should a change log be recorded for non-user facing change. None of the changes in this PR will be inline to any user operation at this time. #### Which issue(s) this PR fixes or relates to Fixes #<issue number> #### Checklist - [x] Tests updated. - [ ] Documentation added. - [ ] `CHANGELOG.md` updated - the order of entries should be `[CHANGE]`, `[FEATURE]`, `[ENHANCEMENT]`, `[BUGFIX]`. If changelog entry is not needed, please add the `changelog-not-needed` label to the PR. - [ ] [`about-versioning.md`](https://github.com/grafana/mimir/blob/main/docs/sources/mimir/configure/about-versioning.md) updated with experimental features. <!-- CURSOR_SUMMARY --> --- > [!NOTE] > **Medium Risk** > Introduces new gRPC streaming APIs and non-trivial merge/ordering logic on the read path; while largely additive, it touches core ingester/store-gateway query surfaces and could impact correctness or performance under load. > > **Overview** > Adds a new *streaming labels/values search API* across ingester and store-gateway, including new gRPC methods `SearchLabelNames` / `SearchLabelValues`, request/response protos (`SearchFilter`, `SearchOrdering`, `SearchResultBatch`), and regenerated client/server stubs. > > Implements the ingester-side `storage.Searcher` integration with batched streaming, input validation mapped to `InvalidArgument`, warning propagation, and context-cancellation checks; wires the new RPCs through activity tracking and profiling wrappers. > > Implements the store-gateway search path by running per-block searches concurrently, applying per-block filter/order/limit, and streaming a deduplicated k-way merge via a new `PairwiseMergeSearchSets` utility (ported from Prometheus), plus wrappers for tracing, activity tracking, and client error wrapping; adds comprehensive tests for batching, ordering, limits, warnings, errors, and cancellation. > > <sup>Reviewed by [Cursor Bugbot](https://cursor.com/bugbot) for commit 3e5862c. Bugbot is set up for automated code reviews on this repo. Configure [here](https://www.cursor.com/dashboard/bugbot).</sup> <!-- /CURSOR_SUMMARY --> --------- Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com> Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>
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It mostly looks good now, but I notice something that looks wrong to me: That the searchLabelValueResult type has a Name label instead of what I would expect: Value. Is this a copy-pasta mistake?
Other suggestions are non-blocking.
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| queryParamWithExample("limit", "Maximum number of metric names to return.", false, integerSchema(), []example{{"example", 20}}), | ||
| queryParamWithExample("batch_size", "Preferred number of results per NDJSON batch.", false, integerSchema(), []example{{"example", 20}}), |
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It might be best to avoid treating 0 as a synonym for these query parameters' respective defaults. I think it may confuse users, as 0 typically means unlimited.
Suggested change
| queryParamWithExample("limit", "Maximum number of metric names to return.", false, integerSchema(), []example{{"example", 20}}), | |
| queryParamWithExample("batch_size", "Preferred number of results per NDJSON batch.", false, integerSchema(), []example{{"example", 20}}), | |
| queryParamWithExample("limit", "Maximum number of metric names to return. Must be a positive integer; omit to use the default of 100.", false, integerSchema(), []example{{"example", 20}}), | |
| queryParamWithExample("batch_size", "Preferred number of results per NDJSON batch. Must be a positive integer; omit to use the default of 100.", false, integerSchema(), []example{{"example", 20}}), |
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| queryParamWithExample("limit", "Maximum number of label names to return.", false, integerSchema(), []example{{"example", 20}}), | ||
| queryParamWithExample("batch_size", "Preferred number of results per NDJSON batch.", false, integerSchema(), []example{{"example", 20}}), |
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See previous comment:
Suggested change
| queryParamWithExample("limit", "Maximum number of label names to return.", false, integerSchema(), []example{{"example", 20}}), | |
| queryParamWithExample("batch_size", "Preferred number of results per NDJSON batch.", false, integerSchema(), []example{{"example", 20}}), | |
| queryParamWithExample("limit", "Maximum number of label names to return. Must be a positive integer; omit to use the default of 100.", false, integerSchema(), []example{{"example", 20}}), | |
| queryParamWithExample("batch_size", "Preferred number of results per NDJSON batch. Must be a positive integer; omit to use the default of 100.", false, integerSchema(), []example{{"example", 20}}), |
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| queryParamWithExample("limit", "Maximum number of label values to return.", false, integerSchema(), []example{{"example", 10}}), | ||
| queryParamWithExample("batch_size", "Preferred number of results per NDJSON batch.", false, integerSchema(), []example{{"example", 10}}), |
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Suggested change
| queryParamWithExample("limit", "Maximum number of label values to return.", false, integerSchema(), []example{{"example", 10}}), | |
| queryParamWithExample("batch_size", "Preferred number of results per NDJSON batch.", false, integerSchema(), []example{{"example", 10}}), | |
| queryParamWithExample("limit", "Maximum number of label values to return. Must be a positive integer; omit to use the default of 100.", false, integerSchema(), []example{{"example", 10}}), | |
| queryParamWithExample("batch_size", "Preferred number of results per NDJSON batch. Must be a positive integer; omit to use the default of 100.", false, integerSchema(), []example{{"example", 10}}), |
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| {"limit", integerSchemaWithDescriptionAndExample("Form field: The maximum number of results to return.", 20)}, | ||
| {"batch_size", integerSchemaWithDescriptionAndExample("Form field: Preferred number of results per NDJSON batch.", 20)}, |
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Suggested change
| {"limit", integerSchemaWithDescriptionAndExample("Form field: The maximum number of results to return.", 20)}, | |
| {"batch_size", integerSchemaWithDescriptionAndExample("Form field: Preferred number of results per NDJSON batch.", 20)}, | |
| {"limit", integerSchemaWithDescriptionAndExample("Form field: The maximum number of results to return. Must be a positive integer; omit to use the default of 100.", 20)}, | |
| {"batch_size", integerSchemaWithDescriptionAndExample("Form field: Preferred number of results per NDJSON batch. Must be a positive integer; omit to use the default of 100.", 20)}, |
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| if err != nil || l < 0 { | ||
| return sp, &apiError{errorBadData, fmt.Errorf("invalid limit %q: must be non-negative integer", v)} | ||
| } | ||
| if l > 0 { | ||
| if api.maxSearchLimit > 0 && l > api.maxSearchLimit { | ||
| return sp, &apiError{errorBadData, fmt.Errorf("limit %d exceeds the configured maximum (%d, see --web.search.max-limit)", l, api.maxSearchLimit)} | ||
| } | ||
| sp.limit = l | ||
| } |
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See previous comment about not treating 0 as a synonym for the default:
Suggested change
| if err != nil || l < 0 { | |
| return sp, &apiError{errorBadData, fmt.Errorf("invalid limit %q: must be non-negative integer", v)} | |
| } | |
| if l > 0 { | |
| if api.maxSearchLimit > 0 && l > api.maxSearchLimit { | |
| return sp, &apiError{errorBadData, fmt.Errorf("limit %d exceeds the configured maximum (%d, see --web.search.max-limit)", l, api.maxSearchLimit)} | |
| } | |
| sp.limit = l | |
| } | |
| if err != nil || l <= 0 { | |
| return sp, &apiError{errorBadData, fmt.Errorf("invalid limit %q: must be positive integer", v)} | |
| } | |
| if api.maxSearchLimit > 0 && l > api.maxSearchLimit { | |
| return sp, &apiError{errorBadData, fmt.Errorf("limit %d exceeds the configured maximum (%d, see --web.search.max-limit)", l, api.maxSearchLimit)} | |
| } | |
| sp.limit = l |
| wantMatched: true, wantScore: 0.325, | ||
| }, | ||
| } | ||
|
|
| }) | ||
| require.Equal(t, http.StatusOK, rec.Code, | ||
| "a request with exactly maxSearchTermsPerRequest terms must be accepted") | ||
| } |
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I suggest adding a test verifying the POST endpoints also:
Suggested change
| } | |
| } | |
| // TestSearchEndpointsAcceptPOST verifies that the POST routes registered for | |
| // the search endpoints accept the same form-encoded parameters that the GET | |
| // routes accept via the query string, and produce equivalent responses. A | |
| // regression here would silently break programmatic clients that prefer POST | |
| // to bypass URL-length limits. | |
| func TestSearchEndpointsAcceptPOST(t *testing.T) { | |
| api := newSearchTestAPI(t) | |
| // decode parses NDJSON lines into generic maps so equivalence is asserted | |
| // on structured content rather than byte-exact bodies. A byte-exact | |
| // comparison would falsely fail the day a new trailer field (e.g. a | |
| // request id) is added — without indicating any actual GET/POST drift. | |
| decode := func(t *testing.T, body string) []map[string]any { | |
| t.Helper() | |
| lines := parseNDJSON(t, body) | |
| out := make([]map[string]any, len(lines)) | |
| for i, line := range lines { | |
| require.NoError(t, json.Unmarshal(line, &out[i]), | |
| "line %d must be valid JSON: %s", i, line) | |
| } | |
| return out | |
| } | |
| cases := []struct { | |
| name string | |
| path string | |
| params url.Values | |
| }{ | |
| { | |
| name: "metric_names", | |
| path: "/search/metric_names", | |
| params: url.Values{"search[]": []string{"go_gc"}}, | |
| }, | |
| { | |
| name: "label_names", | |
| path: "/search/label_names", | |
| params: url.Values{"search[]": []string{"inst"}}, | |
| }, | |
| { | |
| name: "label_values", | |
| path: "/search/label_values", | |
| params: url.Values{"label": []string{"job"}, "search[]": []string{"prom"}}, | |
| }, | |
| } | |
| for _, c := range cases { | |
| t.Run(c.name, func(t *testing.T) { | |
| getRec := doSearchRequest(t, api, c.path, c.params) | |
| postRec := doSearchPOSTRequest(t, api, c.path, c.params) | |
| require.Equal(t, http.StatusOK, postRec.Code, | |
| "POST must accept form-encoded search params") | |
| require.Equal(t, getRec.Code, postRec.Code, | |
| "GET and POST must produce the same status code") | |
| require.Equal(t, decode(t, getRec.Body.String()), decode(t, postRec.Body.String()), | |
| "GET and POST must produce equivalent NDJSON content for the same params") | |
| }) | |
| } | |
| } |
|
|
||
| // searchLabelValueResult is a single result record for the label_values endpoint. | ||
| type searchLabelValueResult struct { | ||
| Name string `json:"name"` |
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It seems misleading to me that search label value searches should return names rather than values:
Suggested change
| Name string `json:"name"` | |
| Value string `json:"value"` |
| ``` | ||
|
|
||
| ```json | ||
| {"results":[{"name":"localhost:9090"},{"name":"localhost:9091"}]} |
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See comment on the searchLabelValueResult type:
Suggested change
| {"results":[{"name":"localhost:9090"},{"name":"localhost:9091"}]} | |
| {"results":[{"value":"localhost:9090"},{"value":"localhost:9091"}]} |
|
|
||
| examples.Set("labelValuesStream", &base.Example{ | ||
| Summary: "NDJSON stream of label values", | ||
| Value: createYAMLNode("{\"results\":[{\"name\":\"localhost:9090\"},{\"name\":\"localhost:9091\"}]}\n{\"status\":\"success\",\"has_more\":true}\n"), |
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Suggested change
| Value: createYAMLNode("{\"results\":[{\"name\":\"localhost:9090\"},{\"name\":\"localhost:9091\"}]}\n{\"status\":\"success\",\"has_more\":true}\n"), | |
| Value: createYAMLNode("{\"results\":[{\"value\":\"localhost:9090\"},{\"value\":\"localhost:9091\"}]}\n{\"status\":\"success\",\"has_more\":true}\n"), |
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It mostly looks good now, but I notice something that looks wrong to me: That the searchLabelValueResult type has a Name label instead of what I would expect: Value. Is this a copy-pasta mistake?
Other suggestions are non-blocking.
…esponse Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com>
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LGTM - please consider my remaining, non-blocking, suggestions.
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…➔ v3.13.0) (#1360) This PR contains the following updates: | Package | Update | Change | |---|---|---| | [quay.io/prometheus/prometheus](https://github.com/prometheus/prometheus) | minor | `v3.12.0` → `v3.13.0` | --- ### Release Notes <details> <summary>prometheus/prometheus (quay.io/prometheus/prometheus)</summary> ### [`v3.13.0`](https://github.com/prometheus/prometheus/releases/tag/v3.13.0): 3.13.0 / 2026-07-01 [Compare Source](prometheus/prometheus@v3.12.0...v3.13.0) This is a Long Term Support [LTS](https://prometheus.io/docs/introduction/release-cycle/) release. - \[SECURITY] UI: Bump `sanitize-html` to fix a cross-site scripting vulnerability (CVE-2026-44990). [#​18697](prometheus/prometheus#18697) - \[CHANGE] UI: Third-party npm dependency licenses are now embedded in the Prometheus binary and served at `/assets/third-party-licenses.txt`, replacing the `npm_licenses.tar.bz2` archive previously shipped in release tarballs and container images. [#​18997](prometheus/prometheus#18997) - \[CHANGE] API: Use SHA-256 instead of SHA-1 to generate rule group pagination tokens. [#​18927](prometheus/prometheus#18927) - \[CHANGE] HTTP clients: Credentials (Authorization header, basic auth, bearer token, OAuth2, configured headers) are no longer forwarded when following a redirect to a different host; affects scraping, remote read/write, alerting, and service discovery. Via prometheus/common v0.69.0 (CVE-2025-4673 CVE-2023-45289). [#​18949](prometheus/prometheus#18949) - \[CHANGE] promtool: Relative file paths in the file passed to `--http.config.file` are now resolved relative to that config file's directory instead of its parent directory. Via prometheus/common v0.69.0. [#​18949](prometheus/prometheus#18949) - \[CHANGE] PromQL: Rename the `min()` and `max()` duration-expression functions (experimental feature flag `experimental-duration-expr`) to `min_of()` and `max_of()` to avoid confusion with the `min` and `max` aggregate operators. [#​18687](prometheus/prometheus#18687) - \[FEATURE] API: Add experimental search endpoints to search metric names, label names, and label values. [#​18573](prometheus/prometheus#18573) - \[FEATURE] Discovery/AWS: Add ability to filter RDS instances. [#​18859](prometheus/prometheus#18859) - \[FEATURE] PromQL: Add `min_of(a, b)` and `max_of(a, b)` scalar experimental functions, returning the smaller or larger of two scalar values. [#​18687](prometheus/prometheus#18687) - \[FEATURE] PromQL: Add support for smoothed/anchored rate with native histograms. [#​18564](prometheus/prometheus#18564) - \[FEATURE] PromQL: Expose per-query `samplesRead` (and `samplesReadPerStep` with `stats=all` and the `promql-per-step-stats` feature flag) in the query stats response, and add the `prometheus_engine_query_samples_read_total` engine counter. `samplesRead` reflects storage I/O distinct from `totalQueryableSamples`, which counts samples loaded into the evaluator (and so over-counts when a sample is reused across multiple range-vector windows). [#​18081](prometheus/prometheus#18081) - \[FEATURE] Scrape: Add `__convert_classic_histograms_to_nhcb__` internal label to allow per-target override of `convert_classic_histograms_to_nhcb` scrape configuration via relabeling. [#​18840](prometheus/prometheus#18840) - \[FEATURE] TSDB: Add `storage.tsdb.chunk_encoding.floats` configuration field to select float chunk encoding (`xor` or `xor2`) at runtime, independently of the `--enable-feature=xor2-encoding` flag. [#​18769](prometheus/prometheus#18769) - \[FEATURE] remote\_write: Add Certificate support for ingesting data into an Azure Monitor Workspace. [#​18217](prometheus/prometheus#18217) - \[FEATURE] Scrape: Add `__always_scrape_classic_histograms__` and `__scrape_native_histograms__` internal labels to allow per-target override of the `always_scrape_classic_histograms` and `scrape_native_histograms` scrape configuration via relabeling. [#​18929](prometheus/prometheus#18929) - \[ENHANCEMENT] Release: Container images are now also published to the GitHub Container Registry (ghcr.io). [#​18791](prometheus/prometheus#18791) - \[ENHANCEMENT] PromQL: Prettify `fill_left(x) fill_right(x)` as `fill(x)` when both fill values are equal. [#​18851](prometheus/prometheus#18851) - \[ENHANCEMENT] UI: Improve autocompletion after closing a function bracket. [#​18894](prometheus/prometheus#18894) - \[PERF] Labels: Add case-insensitive prefix matching to speed up evaluation of long case-insensitive regular expressions (up to \~2x faster). [#​18540](prometheus/prometheus#18540) - \[PERF] TSDB: Reduce per-sample overhead in chunk population, speeding up affected queries by \~12-15% in benchmarks. [#​18699](prometheus/prometheus#18699) - \[PERF] TSDB: Eliminate unnecessary heap allocations in the V2 histogram WAL decoder, reducing allocations by up to 50% and memory by up to 10% for deployments using native histograms with created-timestamp storage enabled (`--enable-feature=created-timestamp-zero-ingestion`). [#​18813](prometheus/prometheus#18813) - \[BUGFIX] Discovery/AWS: Fix failure when processing an AWS RDS cluster without instances. [#​18845](prometheus/prometheus#18845) - \[BUGFIX] Fix race condition in initTime that could cause ErrOutOfBounds. [#​18629](prometheus/prometheus#18629) - \[BUGFIX] PromQL: A range query whose `end` was not aligned to `step` caused subqueries inside it to evaluate past the parent's last actual step, inflating `peakSamples` in the query stats and against the `query.max-samples` limit, and wasting storage I/O reading samples that were never used in the result. [#​18081](prometheus/prometheus#18081) - \[BUGFIX] PromQL: A range query containing an at-modifier-unsafe function over a range-vector with an `@` modifier (e.g. `predict_linear(metric[60s] @​ T, X)`) silently under-counted `totalQueryableSamples` for steps after step 0. [#​18081](prometheus/prometheus#18081) - \[BUGFIX] PromQL: Fix `fill_left`/`fill_right` producing missing samples in range queries when using `group_left`/`group_right`. [#​18850](prometheus/prometheus#18850) - \[BUGFIX] PromQL: Fix for resets() and changes() in anchored range extenders with histograms. [#​18906](prometheus/prometheus#18906) - \[BUGFIX] PromQL: Fix panic on `1[5m] smoothed` and similar expressions when extended range selectors are enabled. [#​18764](prometheus/prometheus#18764) - \[BUGFIX] PromQL: Fix panic when a `smoothed` instant vector selector produces no samples for a series. [#​18943](prometheus/prometheus#18943) - \[BUGFIX] PromQL: Fix panic when using a parenthesised plain number as an offset (e.g. `foo offset -(5)`). [#​18768](prometheus/prometheus#18768) - \[BUGFIX] promtool: Fix panic when parsing exposition text containing empty braces `{}`. Via prometheus/common v0.69.0. [#​18949](prometheus/prometheus#18949) - \[BUGFIX] Promtool: Fix `check healthy` and `check ready` when `--url` ends with a trailing slash. [#​18854](prometheus/prometheus#18854) - \[BUGFIX] Rules: Close PromQL query after each rule evaluation to ensure resources are released. [#​18733](prometheus/prometheus#18733) - \[BUGFIX] Scaleway SD: Resolve VPC/IPAM-only instances that have no legacy `private_ip` or `public_ip` field, but do have private NICs attached. [#​18772](prometheus/prometheus#18772) - \[BUGFIX] TSDB: Do not leak head series when an integer histogram append is rejected (e.g. out-of-order). [#​18838](prometheus/prometheus#18838) - \[BUGFIX] UI: Escape label values offered by PromQL autocomplete. [#​18658](prometheus/prometheus#18658) - \[BUGFIX] TSDB: Fix chunk snapshot encoding for EncXOR2 chunks, preventing corruption on TSDB restart when EncXOR2-encoded series were present. [#​18739](prometheus/prometheus#18739) - \[BUGFIX] TSDB: Store a millisecond timestamp (not a WAL segment number) in walExpiries when a series is evicted via CompactStaleHead/CompactSelectedSeries, so the series's label record is correctly retained in the next WAL checkpoint and replays cleanly. [#​18847](prometheus/prometheus#18847) - \[BUGFIX] TSDB: Prevent loss of samples at the chunk-range boundary when CompactSelectedSeries (and CompactStaleHead) evict the series — the per-slice compaction loop now runs one more iteration so the boundary timestamp is captured in a block before the in-memory copy is removed. [#​18849](prometheus/prometheus#18849) </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about these updates again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4xMDEuMSIsInVwZGF0ZWRJblZlciI6IjQzLjEwMS4xIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJyZW5vdmF0ZS9jb250YWluZXIiLCJ0eXBlL21pbm9yIl19--> Reviewed-on: https://git.erwanleboucher.dev/eleboucher/homelab/pulls/1360
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Jul 7, 2026
##### [\`v3.13.0\`](https://github.com/prometheus/prometheus/releases/tag/v3.13.0) This is a Long Term Support [LTS](https://prometheus.io/docs/introduction/release-cycle/) release. - \[SECURITY] UI: Bump `sanitize-html` to fix a cross-site scripting vulnerability (CVE-2026-44990). [#18697](prometheus/prometheus#18697) - \[CHANGE] UI: Third-party npm dependency licenses are now embedded in the Prometheus binary and served at `/assets/third-party-licenses.txt`, replacing the `npm_licenses.tar.bz2` archive previously shipped in release tarballs and container images. [#18997](prometheus/prometheus#18997) - \[CHANGE] API: Use SHA-256 instead of SHA-1 to generate rule group pagination tokens. [#18927](prometheus/prometheus#18927) - \[CHANGE] HTTP clients: Credentials (Authorization header, basic auth, bearer token, OAuth2, configured headers) are no longer forwarded when following a redirect to a different host; affects scraping, remote read/write, alerting, and service discovery. Via prometheus/common v0.69.0 (CVE-2025-4673 CVE-2023-45289). [#18949](prometheus/prometheus#18949) - \[CHANGE] promtool: Relative file paths in the file passed to `--http.config.file` are now resolved relative to that config file's directory instead of its parent directory. Via prometheus/common v0.69.0. [#18949](prometheus/prometheus#18949) - \[CHANGE] PromQL: Rename the `min()` and `max()` duration-expression functions (experimental feature flag `experimental-duration-expr`) to `min_of()` and `max_of()` to avoid confusion with the `min` and `max` aggregate operators. [#18687](prometheus/prometheus#18687) - \[FEATURE] API: Add experimental search endpoints to search metric names, label names, and label values. [#18573](prometheus/prometheus#18573) - \[FEATURE] Discovery/AWS: Add ability to filter RDS instances. [#18859](prometheus/prometheus#18859) - \[FEATURE] PromQL: Add `min_of(a, b)` and `max_of(a, b)` scalar experimental functions, returning the smaller or larger of two scalar values. [#18687](prometheus/prometheus#18687) - \[FEATURE] PromQL: Add support for smoothed/anchored rate with native histograms. [#18564](prometheus/prometheus#18564) - \[FEATURE] PromQL: Expose per-query `samplesRead` (and `samplesReadPerStep` with `stats=all` and the `promql-per-step-stats` feature flag) in the query stats response, and add the `prometheus_engine_query_samples_read_total` engine counter. `samplesRead` reflects storage I/O distinct from `totalQueryableSamples`, which counts samples loaded into the evaluator (and so over-counts when a sample is reused across multiple range-vector windows). [#18081](prometheus/prometheus#18081) - \[FEATURE] Scrape: Add `__convert_classic_histograms_to_nhcb__` internal label to allow per-target override of `convert_classic_histograms_to_nhcb` scrape configuration via relabeling. [#18840](prometheus/prometheus#18840) - \[FEATURE] TSDB: Add `storage.tsdb.chunk_encoding.floats` configuration field to select float chunk encoding (`xor` or `xor2`) at runtime, independently of the `--enable-feature=xor2-encoding` flag. [#18769](prometheus/prometheus#18769) - \[FEATURE] remote\_write: Add Certificate support for ingesting data into an Azure Monitor Workspace. [#18217](prometheus/prometheus#18217) - \[FEATURE] Scrape: Add `__always_scrape_classic_histograms__` and `__scrape_native_histograms__` internal labels to allow per-target override of the `always_scrape_classic_histograms` and `scrape_native_histograms` scrape configuration via relabeling. [#18929](prometheus/prometheus#18929) - \[ENHANCEMENT] Release: Container images are now also published to the GitHub Container Registry (ghcr.io). [#18791](prometheus/prometheus#18791) - \[ENHANCEMENT] PromQL: Prettify `fill_left(x) fill_right(x)` as `fill(x)` when both fill values are equal. [#18851](prometheus/prometheus#18851) - \[ENHANCEMENT] UI: Improve autocompletion after closing a function bracket. [#18894](prometheus/prometheus#18894) - \[PERF] Labels: Add case-insensitive prefix matching to speed up evaluation of long case-insensitive regular expressions (up to \~2x faster). [#18540](prometheus/prometheus#18540) - \[PERF] TSDB: Reduce per-sample overhead in chunk population, speeding up affected queries by \~12-15% in benchmarks. [#18699](prometheus/prometheus#18699) - \[PERF] TSDB: Eliminate unnecessary heap allocations in the V2 histogram WAL decoder, reducing allocations by up to 50% and memory by up to 10% for deployments using native histograms with created-timestamp storage enabled (`--enable-feature=created-timestamp-zero-ingestion`). [#18813](prometheus/prometheus#18813) - \[BUGFIX] Discovery/AWS: Fix failure when processing an AWS RDS cluster without instances. [#18845](prometheus/prometheus#18845) - \[BUGFIX] Fix race condition in initTime that could cause ErrOutOfBounds. [#18629](prometheus/prometheus#18629) - \[BUGFIX] PromQL: A range query whose `end` was not aligned to `step` caused subqueries inside it to evaluate past the parent's last actual step, inflating `peakSamples` in the query stats and against the `query.max-samples` limit, and wasting storage I/O reading samples that were never used in the result. [#18081](prometheus/prometheus#18081) - \[BUGFIX] PromQL: A range query containing an at-modifier-unsafe function over a range-vector with an `@` modifier (e.g. `predict_linear(metric[60s] @ T, X)`) silently under-counted `totalQueryableSamples` for steps after step 0. [#18081](prometheus/prometheus#18081) - \[BUGFIX] PromQL: Fix `fill_left`/`fill_right` producing missing samples in range queries when using `group_left`/`group_right`. [#18850](prometheus/prometheus#18850) - \[BUGFIX] PromQL: Fix for resets() and changes() in anchored range extenders with histograms. [#18906](prometheus/prometheus#18906) - \[BUGFIX] PromQL: Fix panic on `1[5m] smoothed` and similar expressions when extended range selectors are enabled. [#18764](prometheus/prometheus#18764) - \[BUGFIX] PromQL: Fix panic when a `smoothed` instant vector selector produces no samples for a series. [#18943](prometheus/prometheus#18943) - \[BUGFIX] PromQL: Fix panic when using a parenthesised plain number as an offset (e.g. `foo offset -(5)`). [#18768](prometheus/prometheus#18768) - \[BUGFIX] promtool: Fix panic when parsing exposition text containing empty braces `{}`. Via prometheus/common v0.69.0. [#18949](prometheus/prometheus#18949) - \[BUGFIX] Promtool: Fix `check healthy` and `check ready` when `--url` ends with a trailing slash. [#18854](prometheus/prometheus#18854) - \[BUGFIX] Rules: Close PromQL query after each rule evaluation to ensure resources are released. [#18733](prometheus/prometheus#18733) - \[BUGFIX] Scaleway SD: Resolve VPC/IPAM-only instances that have no legacy `private_ip` or `public_ip` field, but do have private NICs attached. [#18772](prometheus/prometheus#18772) - \[BUGFIX] TSDB: Do not leak head series when an integer histogram append is rejected (e.g. out-of-order). [#18838](prometheus/prometheus#18838) - \[BUGFIX] UI: Escape label values offered by PromQL autocomplete. [#18658](prometheus/prometheus#18658) - \[BUGFIX] TSDB: Fix chunk snapshot encoding for EncXOR2 chunks, preventing corruption on TSDB restart when EncXOR2-encoded series were present. [#18739](prometheus/prometheus#18739) - \[BUGFIX] TSDB: Store a millisecond timestamp (not a WAL segment number) in walExpiries when a series is evicted via CompactStaleHead/CompactSelectedSeries, so the series's label record is correctly retained in the next WAL checkpoint and replays cleanly. [#18847](prometheus/prometheus#18847) - \[BUGFIX] TSDB: Prevent loss of samples at the chunk-range boundary when CompactSelectedSeries (and CompactStaleHead) evict the series — the per-slice compaction loop now runs one more iteration so the boundary timestamp is captured in a block before the in-memory copy is removed. [#18849](prometheus/prometheus#18849)
renovate Bot
added a commit
to sdwilsh/ansible-playbooks
that referenced
this pull request
Jul 7, 2026
##### [\`v3.13.0\`](https://github.com/prometheus/prometheus/releases/tag/v3.13.0) This is a Long Term Support [LTS](https://prometheus.io/docs/introduction/release-cycle/) release. - \[SECURITY] UI: Bump `sanitize-html` to fix a cross-site scripting vulnerability (CVE-2026-44990). [#18697](prometheus/prometheus#18697) - \[CHANGE] UI: Third-party npm dependency licenses are now embedded in the Prometheus binary and served at `/assets/third-party-licenses.txt`, replacing the `npm_licenses.tar.bz2` archive previously shipped in release tarballs and container images. [#18997](prometheus/prometheus#18997) - \[CHANGE] API: Use SHA-256 instead of SHA-1 to generate rule group pagination tokens. [#18927](prometheus/prometheus#18927) - \[CHANGE] HTTP clients: Credentials (Authorization header, basic auth, bearer token, OAuth2, configured headers) are no longer forwarded when following a redirect to a different host; affects scraping, remote read/write, alerting, and service discovery. Via prometheus/common v0.69.0 (CVE-2025-4673 CVE-2023-45289). [#18949](prometheus/prometheus#18949) - \[CHANGE] promtool: Relative file paths in the file passed to `--http.config.file` are now resolved relative to that config file's directory instead of its parent directory. Via prometheus/common v0.69.0. [#18949](prometheus/prometheus#18949) - \[CHANGE] PromQL: Rename the `min()` and `max()` duration-expression functions (experimental feature flag `experimental-duration-expr`) to `min_of()` and `max_of()` to avoid confusion with the `min` and `max` aggregate operators. [#18687](prometheus/prometheus#18687) - \[FEATURE] API: Add experimental search endpoints to search metric names, label names, and label values. [#18573](prometheus/prometheus#18573) - \[FEATURE] Discovery/AWS: Add ability to filter RDS instances. [#18859](prometheus/prometheus#18859) - \[FEATURE] PromQL: Add `min_of(a, b)` and `max_of(a, b)` scalar experimental functions, returning the smaller or larger of two scalar values. [#18687](prometheus/prometheus#18687) - \[FEATURE] PromQL: Add support for smoothed/anchored rate with native histograms. [#18564](prometheus/prometheus#18564) - \[FEATURE] PromQL: Expose per-query `samplesRead` (and `samplesReadPerStep` with `stats=all` and the `promql-per-step-stats` feature flag) in the query stats response, and add the `prometheus_engine_query_samples_read_total` engine counter. `samplesRead` reflects storage I/O distinct from `totalQueryableSamples`, which counts samples loaded into the evaluator (and so over-counts when a sample is reused across multiple range-vector windows). [#18081](prometheus/prometheus#18081) - \[FEATURE] Scrape: Add `__convert_classic_histograms_to_nhcb__` internal label to allow per-target override of `convert_classic_histograms_to_nhcb` scrape configuration via relabeling. [#18840](prometheus/prometheus#18840) - \[FEATURE] TSDB: Add `storage.tsdb.chunk_encoding.floats` configuration field to select float chunk encoding (`xor` or `xor2`) at runtime, independently of the `--enable-feature=xor2-encoding` flag. [#18769](prometheus/prometheus#18769) - \[FEATURE] remote\_write: Add Certificate support for ingesting data into an Azure Monitor Workspace. [#18217](prometheus/prometheus#18217) - \[FEATURE] Scrape: Add `__always_scrape_classic_histograms__` and `__scrape_native_histograms__` internal labels to allow per-target override of the `always_scrape_classic_histograms` and `scrape_native_histograms` scrape configuration via relabeling. [#18929](prometheus/prometheus#18929) - \[ENHANCEMENT] Release: Container images are now also published to the GitHub Container Registry (ghcr.io). [#18791](prometheus/prometheus#18791) - \[ENHANCEMENT] PromQL: Prettify `fill_left(x) fill_right(x)` as `fill(x)` when both fill values are equal. [#18851](prometheus/prometheus#18851) - \[ENHANCEMENT] UI: Improve autocompletion after closing a function bracket. [#18894](prometheus/prometheus#18894) - \[PERF] Labels: Add case-insensitive prefix matching to speed up evaluation of long case-insensitive regular expressions (up to \~2x faster). [#18540](prometheus/prometheus#18540) - \[PERF] TSDB: Reduce per-sample overhead in chunk population, speeding up affected queries by \~12-15% in benchmarks. [#18699](prometheus/prometheus#18699) - \[PERF] TSDB: Eliminate unnecessary heap allocations in the V2 histogram WAL decoder, reducing allocations by up to 50% and memory by up to 10% for deployments using native histograms with created-timestamp storage enabled (`--enable-feature=created-timestamp-zero-ingestion`). [#18813](prometheus/prometheus#18813) - \[BUGFIX] Discovery/AWS: Fix failure when processing an AWS RDS cluster without instances. [#18845](prometheus/prometheus#18845) - \[BUGFIX] Fix race condition in initTime that could cause ErrOutOfBounds. [#18629](prometheus/prometheus#18629) - \[BUGFIX] PromQL: A range query whose `end` was not aligned to `step` caused subqueries inside it to evaluate past the parent's last actual step, inflating `peakSamples` in the query stats and against the `query.max-samples` limit, and wasting storage I/O reading samples that were never used in the result. [#18081](prometheus/prometheus#18081) - \[BUGFIX] PromQL: A range query containing an at-modifier-unsafe function over a range-vector with an `@` modifier (e.g. `predict_linear(metric[60s] @ T, X)`) silently under-counted `totalQueryableSamples` for steps after step 0. [#18081](prometheus/prometheus#18081) - \[BUGFIX] PromQL: Fix `fill_left`/`fill_right` producing missing samples in range queries when using `group_left`/`group_right`. [#18850](prometheus/prometheus#18850) - \[BUGFIX] PromQL: Fix for resets() and changes() in anchored range extenders with histograms. [#18906](prometheus/prometheus#18906) - \[BUGFIX] PromQL: Fix panic on `1[5m] smoothed` and similar expressions when extended range selectors are enabled. [#18764](prometheus/prometheus#18764) - \[BUGFIX] PromQL: Fix panic when a `smoothed` instant vector selector produces no samples for a series. [#18943](prometheus/prometheus#18943) - \[BUGFIX] PromQL: Fix panic when using a parenthesised plain number as an offset (e.g. `foo offset -(5)`). [#18768](prometheus/prometheus#18768) - \[BUGFIX] promtool: Fix panic when parsing exposition text containing empty braces `{}`. Via prometheus/common v0.69.0. [#18949](prometheus/prometheus#18949) - \[BUGFIX] Promtool: Fix `check healthy` and `check ready` when `--url` ends with a trailing slash. [#18854](prometheus/prometheus#18854) - \[BUGFIX] Rules: Close PromQL query after each rule evaluation to ensure resources are released. [#18733](prometheus/prometheus#18733) - \[BUGFIX] Scaleway SD: Resolve VPC/IPAM-only instances that have no legacy `private_ip` or `public_ip` field, but do have private NICs attached. [#18772](prometheus/prometheus#18772) - \[BUGFIX] TSDB: Do not leak head series when an integer histogram append is rejected (e.g. out-of-order). [#18838](prometheus/prometheus#18838) - \[BUGFIX] UI: Escape label values offered by PromQL autocomplete. [#18658](prometheus/prometheus#18658) - \[BUGFIX] TSDB: Fix chunk snapshot encoding for EncXOR2 chunks, preventing corruption on TSDB restart when EncXOR2-encoded series were present. [#18739](prometheus/prometheus#18739) - \[BUGFIX] TSDB: Store a millisecond timestamp (not a WAL segment number) in walExpiries when a series is evicted via CompactStaleHead/CompactSelectedSeries, so the series's label record is correctly retained in the next WAL checkpoint and replays cleanly. [#18847](prometheus/prometheus#18847) - \[BUGFIX] TSDB: Prevent loss of samples at the chunk-range boundary when CompactSelectedSeries (and CompactStaleHead) evict the series — the per-slice compaction loop now runs one more iteration so the boundary timestamp is captured in a block before the in-memory copy is removed. [#18849](prometheus/prometheus#18849)
renovate Bot
added a commit
to sdwilsh/ansible-playbooks
that referenced
this pull request
Jul 7, 2026
##### [\`v3.13.0\`](https://github.com/prometheus/prometheus/releases/tag/v3.13.0) This is a Long Term Support [LTS](https://prometheus.io/docs/introduction/release-cycle/) release. - \[SECURITY] UI: Bump `sanitize-html` to fix a cross-site scripting vulnerability (CVE-2026-44990). [#18697](prometheus/prometheus#18697) - \[CHANGE] UI: Third-party npm dependency licenses are now embedded in the Prometheus binary and served at `/assets/third-party-licenses.txt`, replacing the `npm_licenses.tar.bz2` archive previously shipped in release tarballs and container images. [#18997](prometheus/prometheus#18997) - \[CHANGE] API: Use SHA-256 instead of SHA-1 to generate rule group pagination tokens. [#18927](prometheus/prometheus#18927) - \[CHANGE] HTTP clients: Credentials (Authorization header, basic auth, bearer token, OAuth2, configured headers) are no longer forwarded when following a redirect to a different host; affects scraping, remote read/write, alerting, and service discovery. Via prometheus/common v0.69.0 (CVE-2025-4673 CVE-2023-45289). [#18949](prometheus/prometheus#18949) - \[CHANGE] promtool: Relative file paths in the file passed to `--http.config.file` are now resolved relative to that config file's directory instead of its parent directory. Via prometheus/common v0.69.0. [#18949](prometheus/prometheus#18949) - \[CHANGE] PromQL: Rename the `min()` and `max()` duration-expression functions (experimental feature flag `experimental-duration-expr`) to `min_of()` and `max_of()` to avoid confusion with the `min` and `max` aggregate operators. [#18687](prometheus/prometheus#18687) - \[FEATURE] API: Add experimental search endpoints to search metric names, label names, and label values. [#18573](prometheus/prometheus#18573) - \[FEATURE] Discovery/AWS: Add ability to filter RDS instances. [#18859](prometheus/prometheus#18859) - \[FEATURE] PromQL: Add `min_of(a, b)` and `max_of(a, b)` scalar experimental functions, returning the smaller or larger of two scalar values. [#18687](prometheus/prometheus#18687) - \[FEATURE] PromQL: Add support for smoothed/anchored rate with native histograms. [#18564](prometheus/prometheus#18564) - \[FEATURE] PromQL: Expose per-query `samplesRead` (and `samplesReadPerStep` with `stats=all` and the `promql-per-step-stats` feature flag) in the query stats response, and add the `prometheus_engine_query_samples_read_total` engine counter. `samplesRead` reflects storage I/O distinct from `totalQueryableSamples`, which counts samples loaded into the evaluator (and so over-counts when a sample is reused across multiple range-vector windows). [#18081](prometheus/prometheus#18081) - \[FEATURE] Scrape: Add `__convert_classic_histograms_to_nhcb__` internal label to allow per-target override of `convert_classic_histograms_to_nhcb` scrape configuration via relabeling. [#18840](prometheus/prometheus#18840) - \[FEATURE] TSDB: Add `storage.tsdb.chunk_encoding.floats` configuration field to select float chunk encoding (`xor` or `xor2`) at runtime, independently of the `--enable-feature=xor2-encoding` flag. [#18769](prometheus/prometheus#18769) - \[FEATURE] remote\_write: Add Certificate support for ingesting data into an Azure Monitor Workspace. [#18217](prometheus/prometheus#18217) - \[FEATURE] Scrape: Add `__always_scrape_classic_histograms__` and `__scrape_native_histograms__` internal labels to allow per-target override of the `always_scrape_classic_histograms` and `scrape_native_histograms` scrape configuration via relabeling. [#18929](prometheus/prometheus#18929) - \[ENHANCEMENT] Release: Container images are now also published to the GitHub Container Registry (ghcr.io). [#18791](prometheus/prometheus#18791) - \[ENHANCEMENT] PromQL: Prettify `fill_left(x) fill_right(x)` as `fill(x)` when both fill values are equal. [#18851](prometheus/prometheus#18851) - \[ENHANCEMENT] UI: Improve autocompletion after closing a function bracket. [#18894](prometheus/prometheus#18894) - \[PERF] Labels: Add case-insensitive prefix matching to speed up evaluation of long case-insensitive regular expressions (up to \~2x faster). [#18540](prometheus/prometheus#18540) - \[PERF] TSDB: Reduce per-sample overhead in chunk population, speeding up affected queries by \~12-15% in benchmarks. [#18699](prometheus/prometheus#18699) - \[PERF] TSDB: Eliminate unnecessary heap allocations in the V2 histogram WAL decoder, reducing allocations by up to 50% and memory by up to 10% for deployments using native histograms with created-timestamp storage enabled (`--enable-feature=created-timestamp-zero-ingestion`). [#18813](prometheus/prometheus#18813) - \[BUGFIX] Discovery/AWS: Fix failure when processing an AWS RDS cluster without instances. [#18845](prometheus/prometheus#18845) - \[BUGFIX] Fix race condition in initTime that could cause ErrOutOfBounds. [#18629](prometheus/prometheus#18629) - \[BUGFIX] PromQL: A range query whose `end` was not aligned to `step` caused subqueries inside it to evaluate past the parent's last actual step, inflating `peakSamples` in the query stats and against the `query.max-samples` limit, and wasting storage I/O reading samples that were never used in the result. [#18081](prometheus/prometheus#18081) - \[BUGFIX] PromQL: A range query containing an at-modifier-unsafe function over a range-vector with an `@` modifier (e.g. `predict_linear(metric[60s] @ T, X)`) silently under-counted `totalQueryableSamples` for steps after step 0. [#18081](prometheus/prometheus#18081) - \[BUGFIX] PromQL: Fix `fill_left`/`fill_right` producing missing samples in range queries when using `group_left`/`group_right`. [#18850](prometheus/prometheus#18850) - \[BUGFIX] PromQL: Fix for resets() and changes() in anchored range extenders with histograms. [#18906](prometheus/prometheus#18906) - \[BUGFIX] PromQL: Fix panic on `1[5m] smoothed` and similar expressions when extended range selectors are enabled. [#18764](prometheus/prometheus#18764) - \[BUGFIX] PromQL: Fix panic when a `smoothed` instant vector selector produces no samples for a series. [#18943](prometheus/prometheus#18943) - \[BUGFIX] PromQL: Fix panic when using a parenthesised plain number as an offset (e.g. `foo offset -(5)`). [#18768](prometheus/prometheus#18768) - \[BUGFIX] promtool: Fix panic when parsing exposition text containing empty braces `{}`. Via prometheus/common v0.69.0. [#18949](prometheus/prometheus#18949) - \[BUGFIX] Promtool: Fix `check healthy` and `check ready` when `--url` ends with a trailing slash. [#18854](prometheus/prometheus#18854) - \[BUGFIX] Rules: Close PromQL query after each rule evaluation to ensure resources are released. [#18733](prometheus/prometheus#18733) - \[BUGFIX] Scaleway SD: Resolve VPC/IPAM-only instances that have no legacy `private_ip` or `public_ip` field, but do have private NICs attached. [#18772](prometheus/prometheus#18772) - \[BUGFIX] TSDB: Do not leak head series when an integer histogram append is rejected (e.g. out-of-order). [#18838](prometheus/prometheus#18838) - \[BUGFIX] UI: Escape label values offered by PromQL autocomplete. [#18658](prometheus/prometheus#18658) - \[BUGFIX] TSDB: Fix chunk snapshot encoding for EncXOR2 chunks, preventing corruption on TSDB restart when EncXOR2-encoded series were present. [#18739](prometheus/prometheus#18739) - \[BUGFIX] TSDB: Store a millisecond timestamp (not a WAL segment number) in walExpiries when a series is evicted via CompactStaleHead/CompactSelectedSeries, so the series's label record is correctly retained in the next WAL checkpoint and replays cleanly. [#18847](prometheus/prometheus#18847) - \[BUGFIX] TSDB: Prevent loss of samples at the chunk-range boundary when CompactSelectedSeries (and CompactStaleHead) evict the series — the per-slice compaction loop now runs one more iteration so the boundary timestamp is captured in a block before the in-memory copy is removed. [#18849](prometheus/prometheus#18849)
renovate Bot
added a commit
to sdwilsh/ansible-playbooks
that referenced
this pull request
Jul 7, 2026
##### [\`v3.13.0\`](https://github.com/prometheus/prometheus/releases/tag/v3.13.0) This is a Long Term Support [LTS](https://prometheus.io/docs/introduction/release-cycle/) release. - \[SECURITY] UI: Bump `sanitize-html` to fix a cross-site scripting vulnerability (CVE-2026-44990). [#18697](prometheus/prometheus#18697) - \[CHANGE] UI: Third-party npm dependency licenses are now embedded in the Prometheus binary and served at `/assets/third-party-licenses.txt`, replacing the `npm_licenses.tar.bz2` archive previously shipped in release tarballs and container images. [#18997](prometheus/prometheus#18997) - \[CHANGE] API: Use SHA-256 instead of SHA-1 to generate rule group pagination tokens. [#18927](prometheus/prometheus#18927) - \[CHANGE] HTTP clients: Credentials (Authorization header, basic auth, bearer token, OAuth2, configured headers) are no longer forwarded when following a redirect to a different host; affects scraping, remote read/write, alerting, and service discovery. Via prometheus/common v0.69.0 (CVE-2025-4673 CVE-2023-45289). [#18949](prometheus/prometheus#18949) - \[CHANGE] promtool: Relative file paths in the file passed to `--http.config.file` are now resolved relative to that config file's directory instead of its parent directory. Via prometheus/common v0.69.0. [#18949](prometheus/prometheus#18949) - \[CHANGE] PromQL: Rename the `min()` and `max()` duration-expression functions (experimental feature flag `experimental-duration-expr`) to `min_of()` and `max_of()` to avoid confusion with the `min` and `max` aggregate operators. [#18687](prometheus/prometheus#18687) - \[FEATURE] API: Add experimental search endpoints to search metric names, label names, and label values. [#18573](prometheus/prometheus#18573) - \[FEATURE] Discovery/AWS: Add ability to filter RDS instances. [#18859](prometheus/prometheus#18859) - \[FEATURE] PromQL: Add `min_of(a, b)` and `max_of(a, b)` scalar experimental functions, returning the smaller or larger of two scalar values. [#18687](prometheus/prometheus#18687) - \[FEATURE] PromQL: Add support for smoothed/anchored rate with native histograms. [#18564](prometheus/prometheus#18564) - \[FEATURE] PromQL: Expose per-query `samplesRead` (and `samplesReadPerStep` with `stats=all` and the `promql-per-step-stats` feature flag) in the query stats response, and add the `prometheus_engine_query_samples_read_total` engine counter. `samplesRead` reflects storage I/O distinct from `totalQueryableSamples`, which counts samples loaded into the evaluator (and so over-counts when a sample is reused across multiple range-vector windows). [#18081](prometheus/prometheus#18081) - \[FEATURE] Scrape: Add `__convert_classic_histograms_to_nhcb__` internal label to allow per-target override of `convert_classic_histograms_to_nhcb` scrape configuration via relabeling. [#18840](prometheus/prometheus#18840) - \[FEATURE] TSDB: Add `storage.tsdb.chunk_encoding.floats` configuration field to select float chunk encoding (`xor` or `xor2`) at runtime, independently of the `--enable-feature=xor2-encoding` flag. [#18769](prometheus/prometheus#18769) - \[FEATURE] remote\_write: Add Certificate support for ingesting data into an Azure Monitor Workspace. [#18217](prometheus/prometheus#18217) - \[FEATURE] Scrape: Add `__always_scrape_classic_histograms__` and `__scrape_native_histograms__` internal labels to allow per-target override of the `always_scrape_classic_histograms` and `scrape_native_histograms` scrape configuration via relabeling. [#18929](prometheus/prometheus#18929) - \[ENHANCEMENT] Release: Container images are now also published to the GitHub Container Registry (ghcr.io). [#18791](prometheus/prometheus#18791) - \[ENHANCEMENT] PromQL: Prettify `fill_left(x) fill_right(x)` as `fill(x)` when both fill values are equal. [#18851](prometheus/prometheus#18851) - \[ENHANCEMENT] UI: Improve autocompletion after closing a function bracket. [#18894](prometheus/prometheus#18894) - \[PERF] Labels: Add case-insensitive prefix matching to speed up evaluation of long case-insensitive regular expressions (up to \~2x faster). [#18540](prometheus/prometheus#18540) - \[PERF] TSDB: Reduce per-sample overhead in chunk population, speeding up affected queries by \~12-15% in benchmarks. [#18699](prometheus/prometheus#18699) - \[PERF] TSDB: Eliminate unnecessary heap allocations in the V2 histogram WAL decoder, reducing allocations by up to 50% and memory by up to 10% for deployments using native histograms with created-timestamp storage enabled (`--enable-feature=created-timestamp-zero-ingestion`). [#18813](prometheus/prometheus#18813) - \[BUGFIX] Discovery/AWS: Fix failure when processing an AWS RDS cluster without instances. [#18845](prometheus/prometheus#18845) - \[BUGFIX] Fix race condition in initTime that could cause ErrOutOfBounds. [#18629](prometheus/prometheus#18629) - \[BUGFIX] PromQL: A range query whose `end` was not aligned to `step` caused subqueries inside it to evaluate past the parent's last actual step, inflating `peakSamples` in the query stats and against the `query.max-samples` limit, and wasting storage I/O reading samples that were never used in the result. [#18081](prometheus/prometheus#18081) - \[BUGFIX] PromQL: A range query containing an at-modifier-unsafe function over a range-vector with an `@` modifier (e.g. `predict_linear(metric[60s] @ T, X)`) silently under-counted `totalQueryableSamples` for steps after step 0. [#18081](prometheus/prometheus#18081) - \[BUGFIX] PromQL: Fix `fill_left`/`fill_right` producing missing samples in range queries when using `group_left`/`group_right`. [#18850](prometheus/prometheus#18850) - \[BUGFIX] PromQL: Fix for resets() and changes() in anchored range extenders with histograms. [#18906](prometheus/prometheus#18906) - \[BUGFIX] PromQL: Fix panic on `1[5m] smoothed` and similar expressions when extended range selectors are enabled. [#18764](prometheus/prometheus#18764) - \[BUGFIX] PromQL: Fix panic when a `smoothed` instant vector selector produces no samples for a series. [#18943](prometheus/prometheus#18943) - \[BUGFIX] PromQL: Fix panic when using a parenthesised plain number as an offset (e.g. `foo offset -(5)`). [#18768](prometheus/prometheus#18768) - \[BUGFIX] promtool: Fix panic when parsing exposition text containing empty braces `{}`. Via prometheus/common v0.69.0. [#18949](prometheus/prometheus#18949) - \[BUGFIX] Promtool: Fix `check healthy` and `check ready` when `--url` ends with a trailing slash. [#18854](prometheus/prometheus#18854) - \[BUGFIX] Rules: Close PromQL query after each rule evaluation to ensure resources are released. [#18733](prometheus/prometheus#18733) - \[BUGFIX] Scaleway SD: Resolve VPC/IPAM-only instances that have no legacy `private_ip` or `public_ip` field, but do have private NICs attached. [#18772](prometheus/prometheus#18772) - \[BUGFIX] TSDB: Do not leak head series when an integer histogram append is rejected (e.g. out-of-order). [#18838](prometheus/prometheus#18838) - \[BUGFIX] UI: Escape label values offered by PromQL autocomplete. [#18658](prometheus/prometheus#18658) - \[BUGFIX] TSDB: Fix chunk snapshot encoding for EncXOR2 chunks, preventing corruption on TSDB restart when EncXOR2-encoded series were present. [#18739](prometheus/prometheus#18739) - \[BUGFIX] TSDB: Store a millisecond timestamp (not a WAL segment number) in walExpiries when a series is evicted via CompactStaleHead/CompactSelectedSeries, so the series's label record is correctly retained in the next WAL checkpoint and replays cleanly. [#18847](prometheus/prometheus#18847) - \[BUGFIX] TSDB: Prevent loss of samples at the chunk-range boundary when CompactSelectedSeries (and CompactStaleHead) evict the series — the per-slice compaction loop now runs one more iteration so the boundary timestamp is captured in a block before the in-memory copy is removed. [#18849](prometheus/prometheus#18849)
renovate Bot
added a commit
to sdwilsh/ansible-playbooks
that referenced
this pull request
Jul 7, 2026
##### [\`v3.13.0\`](https://github.com/prometheus/prometheus/releases/tag/v3.13.0) This is a Long Term Support [LTS](https://prometheus.io/docs/introduction/release-cycle/) release. - \[SECURITY] UI: Bump `sanitize-html` to fix a cross-site scripting vulnerability (CVE-2026-44990). [#18697](prometheus/prometheus#18697) - \[CHANGE] UI: Third-party npm dependency licenses are now embedded in the Prometheus binary and served at `/assets/third-party-licenses.txt`, replacing the `npm_licenses.tar.bz2` archive previously shipped in release tarballs and container images. [#18997](prometheus/prometheus#18997) - \[CHANGE] API: Use SHA-256 instead of SHA-1 to generate rule group pagination tokens. [#18927](prometheus/prometheus#18927) - \[CHANGE] HTTP clients: Credentials (Authorization header, basic auth, bearer token, OAuth2, configured headers) are no longer forwarded when following a redirect to a different host; affects scraping, remote read/write, alerting, and service discovery. Via prometheus/common v0.69.0 (CVE-2025-4673 CVE-2023-45289). [#18949](prometheus/prometheus#18949) - \[CHANGE] promtool: Relative file paths in the file passed to `--http.config.file` are now resolved relative to that config file's directory instead of its parent directory. Via prometheus/common v0.69.0. [#18949](prometheus/prometheus#18949) - \[CHANGE] PromQL: Rename the `min()` and `max()` duration-expression functions (experimental feature flag `experimental-duration-expr`) to `min_of()` and `max_of()` to avoid confusion with the `min` and `max` aggregate operators. [#18687](prometheus/prometheus#18687) - \[FEATURE] API: Add experimental search endpoints to search metric names, label names, and label values. [#18573](prometheus/prometheus#18573) - \[FEATURE] Discovery/AWS: Add ability to filter RDS instances. [#18859](prometheus/prometheus#18859) - \[FEATURE] PromQL: Add `min_of(a, b)` and `max_of(a, b)` scalar experimental functions, returning the smaller or larger of two scalar values. [#18687](prometheus/prometheus#18687) - \[FEATURE] PromQL: Add support for smoothed/anchored rate with native histograms. [#18564](prometheus/prometheus#18564) - \[FEATURE] PromQL: Expose per-query `samplesRead` (and `samplesReadPerStep` with `stats=all` and the `promql-per-step-stats` feature flag) in the query stats response, and add the `prometheus_engine_query_samples_read_total` engine counter. `samplesRead` reflects storage I/O distinct from `totalQueryableSamples`, which counts samples loaded into the evaluator (and so over-counts when a sample is reused across multiple range-vector windows). [#18081](prometheus/prometheus#18081) - \[FEATURE] Scrape: Add `__convert_classic_histograms_to_nhcb__` internal label to allow per-target override of `convert_classic_histograms_to_nhcb` scrape configuration via relabeling. [#18840](prometheus/prometheus#18840) - \[FEATURE] TSDB: Add `storage.tsdb.chunk_encoding.floats` configuration field to select float chunk encoding (`xor` or `xor2`) at runtime, independently of the `--enable-feature=xor2-encoding` flag. [#18769](prometheus/prometheus#18769) - \[FEATURE] remote\_write: Add Certificate support for ingesting data into an Azure Monitor Workspace. [#18217](prometheus/prometheus#18217) - \[FEATURE] Scrape: Add `__always_scrape_classic_histograms__` and `__scrape_native_histograms__` internal labels to allow per-target override of the `always_scrape_classic_histograms` and `scrape_native_histograms` scrape configuration via relabeling. [#18929](prometheus/prometheus#18929) - \[ENHANCEMENT] Release: Container images are now also published to the GitHub Container Registry (ghcr.io). [#18791](prometheus/prometheus#18791) - \[ENHANCEMENT] PromQL: Prettify `fill_left(x) fill_right(x)` as `fill(x)` when both fill values are equal. [#18851](prometheus/prometheus#18851) - \[ENHANCEMENT] UI: Improve autocompletion after closing a function bracket. [#18894](prometheus/prometheus#18894) - \[PERF] Labels: Add case-insensitive prefix matching to speed up evaluation of long case-insensitive regular expressions (up to \~2x faster). [#18540](prometheus/prometheus#18540) - \[PERF] TSDB: Reduce per-sample overhead in chunk population, speeding up affected queries by \~12-15% in benchmarks. [#18699](prometheus/prometheus#18699) - \[PERF] TSDB: Eliminate unnecessary heap allocations in the V2 histogram WAL decoder, reducing allocations by up to 50% and memory by up to 10% for deployments using native histograms with created-timestamp storage enabled (`--enable-feature=created-timestamp-zero-ingestion`). [#18813](prometheus/prometheus#18813) - \[BUGFIX] Discovery/AWS: Fix failure when processing an AWS RDS cluster without instances. [#18845](prometheus/prometheus#18845) - \[BUGFIX] Fix race condition in initTime that could cause ErrOutOfBounds. [#18629](prometheus/prometheus#18629) - \[BUGFIX] PromQL: A range query whose `end` was not aligned to `step` caused subqueries inside it to evaluate past the parent's last actual step, inflating `peakSamples` in the query stats and against the `query.max-samples` limit, and wasting storage I/O reading samples that were never used in the result. [#18081](prometheus/prometheus#18081) - \[BUGFIX] PromQL: A range query containing an at-modifier-unsafe function over a range-vector with an `@` modifier (e.g. `predict_linear(metric[60s] @ T, X)`) silently under-counted `totalQueryableSamples` for steps after step 0. [#18081](prometheus/prometheus#18081) - \[BUGFIX] PromQL: Fix `fill_left`/`fill_right` producing missing samples in range queries when using `group_left`/`group_right`. [#18850](prometheus/prometheus#18850) - \[BUGFIX] PromQL: Fix for resets() and changes() in anchored range extenders with histograms. [#18906](prometheus/prometheus#18906) - \[BUGFIX] PromQL: Fix panic on `1[5m] smoothed` and similar expressions when extended range selectors are enabled. [#18764](prometheus/prometheus#18764) - \[BUGFIX] PromQL: Fix panic when a `smoothed` instant vector selector produces no samples for a series. [#18943](prometheus/prometheus#18943) - \[BUGFIX] PromQL: Fix panic when using a parenthesised plain number as an offset (e.g. `foo offset -(5)`). [#18768](prometheus/prometheus#18768) - \[BUGFIX] promtool: Fix panic when parsing exposition text containing empty braces `{}`. Via prometheus/common v0.69.0. [#18949](prometheus/prometheus#18949) - \[BUGFIX] Promtool: Fix `check healthy` and `check ready` when `--url` ends with a trailing slash. [#18854](prometheus/prometheus#18854) - \[BUGFIX] Rules: Close PromQL query after each rule evaluation to ensure resources are released. [#18733](prometheus/prometheus#18733) - \[BUGFIX] Scaleway SD: Resolve VPC/IPAM-only instances that have no legacy `private_ip` or `public_ip` field, but do have private NICs attached. [#18772](prometheus/prometheus#18772) - \[BUGFIX] TSDB: Do not leak head series when an integer histogram append is rejected (e.g. out-of-order). [#18838](prometheus/prometheus#18838) - \[BUGFIX] UI: Escape label values offered by PromQL autocomplete. [#18658](prometheus/prometheus#18658) - \[BUGFIX] TSDB: Fix chunk snapshot encoding for EncXOR2 chunks, preventing corruption on TSDB restart when EncXOR2-encoded series were present. [#18739](prometheus/prometheus#18739) - \[BUGFIX] TSDB: Store a millisecond timestamp (not a WAL segment number) in walExpiries when a series is evicted via CompactStaleHead/CompactSelectedSeries, so the series's label record is correctly retained in the next WAL checkpoint and replays cleanly. [#18847](prometheus/prometheus#18847) - \[BUGFIX] TSDB: Prevent loss of samples at the chunk-range boundary when CompactSelectedSeries (and CompactStaleHead) evict the series — the per-slice compaction loop now runs one more iteration so the boundary timestamp is captured in a block before the in-memory copy is removed. [#18849](prometheus/prometheus#18849)
renovate Bot
added a commit
to sdwilsh/ansible-playbooks
that referenced
this pull request
Jul 7, 2026
##### [\`v3.13.0\`](https://github.com/prometheus/prometheus/releases/tag/v3.13.0) This is a Long Term Support [LTS](https://prometheus.io/docs/introduction/release-cycle/) release. - \[SECURITY] UI: Bump `sanitize-html` to fix a cross-site scripting vulnerability (CVE-2026-44990). [#18697](prometheus/prometheus#18697) - \[CHANGE] UI: Third-party npm dependency licenses are now embedded in the Prometheus binary and served at `/assets/third-party-licenses.txt`, replacing the `npm_licenses.tar.bz2` archive previously shipped in release tarballs and container images. [#18997](prometheus/prometheus#18997) - \[CHANGE] API: Use SHA-256 instead of SHA-1 to generate rule group pagination tokens. [#18927](prometheus/prometheus#18927) - \[CHANGE] HTTP clients: Credentials (Authorization header, basic auth, bearer token, OAuth2, configured headers) are no longer forwarded when following a redirect to a different host; affects scraping, remote read/write, alerting, and service discovery. Via prometheus/common v0.69.0 (CVE-2025-4673 CVE-2023-45289). [#18949](prometheus/prometheus#18949) - \[CHANGE] promtool: Relative file paths in the file passed to `--http.config.file` are now resolved relative to that config file's directory instead of its parent directory. Via prometheus/common v0.69.0. [#18949](prometheus/prometheus#18949) - \[CHANGE] PromQL: Rename the `min()` and `max()` duration-expression functions (experimental feature flag `experimental-duration-expr`) to `min_of()` and `max_of()` to avoid confusion with the `min` and `max` aggregate operators. [#18687](prometheus/prometheus#18687) - \[FEATURE] API: Add experimental search endpoints to search metric names, label names, and label values. [#18573](prometheus/prometheus#18573) - \[FEATURE] Discovery/AWS: Add ability to filter RDS instances. [#18859](prometheus/prometheus#18859) - \[FEATURE] PromQL: Add `min_of(a, b)` and `max_of(a, b)` scalar experimental functions, returning the smaller or larger of two scalar values. [#18687](prometheus/prometheus#18687) - \[FEATURE] PromQL: Add support for smoothed/anchored rate with native histograms. [#18564](prometheus/prometheus#18564) - \[FEATURE] PromQL: Expose per-query `samplesRead` (and `samplesReadPerStep` with `stats=all` and the `promql-per-step-stats` feature flag) in the query stats response, and add the `prometheus_engine_query_samples_read_total` engine counter. `samplesRead` reflects storage I/O distinct from `totalQueryableSamples`, which counts samples loaded into the evaluator (and so over-counts when a sample is reused across multiple range-vector windows). [#18081](prometheus/prometheus#18081) - \[FEATURE] Scrape: Add `__convert_classic_histograms_to_nhcb__` internal label to allow per-target override of `convert_classic_histograms_to_nhcb` scrape configuration via relabeling. [#18840](prometheus/prometheus#18840) - \[FEATURE] TSDB: Add `storage.tsdb.chunk_encoding.floats` configuration field to select float chunk encoding (`xor` or `xor2`) at runtime, independently of the `--enable-feature=xor2-encoding` flag. [#18769](prometheus/prometheus#18769) - \[FEATURE] remote\_write: Add Certificate support for ingesting data into an Azure Monitor Workspace. [#18217](prometheus/prometheus#18217) - \[FEATURE] Scrape: Add `__always_scrape_classic_histograms__` and `__scrape_native_histograms__` internal labels to allow per-target override of the `always_scrape_classic_histograms` and `scrape_native_histograms` scrape configuration via relabeling. [#18929](prometheus/prometheus#18929) - \[ENHANCEMENT] Release: Container images are now also published to the GitHub Container Registry (ghcr.io). [#18791](prometheus/prometheus#18791) - \[ENHANCEMENT] PromQL: Prettify `fill_left(x) fill_right(x)` as `fill(x)` when both fill values are equal. [#18851](prometheus/prometheus#18851) - \[ENHANCEMENT] UI: Improve autocompletion after closing a function bracket. [#18894](prometheus/prometheus#18894) - \[PERF] Labels: Add case-insensitive prefix matching to speed up evaluation of long case-insensitive regular expressions (up to \~2x faster). [#18540](prometheus/prometheus#18540) - \[PERF] TSDB: Reduce per-sample overhead in chunk population, speeding up affected queries by \~12-15% in benchmarks. [#18699](prometheus/prometheus#18699) - \[PERF] TSDB: Eliminate unnecessary heap allocations in the V2 histogram WAL decoder, reducing allocations by up to 50% and memory by up to 10% for deployments using native histograms with created-timestamp storage enabled (`--enable-feature=created-timestamp-zero-ingestion`). [#18813](prometheus/prometheus#18813) - \[BUGFIX] Discovery/AWS: Fix failure when processing an AWS RDS cluster without instances. [#18845](prometheus/prometheus#18845) - \[BUGFIX] Fix race condition in initTime that could cause ErrOutOfBounds. [#18629](prometheus/prometheus#18629) - \[BUGFIX] PromQL: A range query whose `end` was not aligned to `step` caused subqueries inside it to evaluate past the parent's last actual step, inflating `peakSamples` in the query stats and against the `query.max-samples` limit, and wasting storage I/O reading samples that were never used in the result. [#18081](prometheus/prometheus#18081) - \[BUGFIX] PromQL: A range query containing an at-modifier-unsafe function over a range-vector with an `@` modifier (e.g. `predict_linear(metric[60s] @ T, X)`) silently under-counted `totalQueryableSamples` for steps after step 0. [#18081](prometheus/prometheus#18081) - \[BUGFIX] PromQL: Fix `fill_left`/`fill_right` producing missing samples in range queries when using `group_left`/`group_right`. [#18850](prometheus/prometheus#18850) - \[BUGFIX] PromQL: Fix for resets() and changes() in anchored range extenders with histograms. [#18906](prometheus/prometheus#18906) - \[BUGFIX] PromQL: Fix panic on `1[5m] smoothed` and similar expressions when extended range selectors are enabled. [#18764](prometheus/prometheus#18764) - \[BUGFIX] PromQL: Fix panic when a `smoothed` instant vector selector produces no samples for a series. [#18943](prometheus/prometheus#18943) - \[BUGFIX] PromQL: Fix panic when using a parenthesised plain number as an offset (e.g. `foo offset -(5)`). [#18768](prometheus/prometheus#18768) - \[BUGFIX] promtool: Fix panic when parsing exposition text containing empty braces `{}`. Via prometheus/common v0.69.0. [#18949](prometheus/prometheus#18949) - \[BUGFIX] Promtool: Fix `check healthy` and `check ready` when `--url` ends with a trailing slash. [#18854](prometheus/prometheus#18854) - \[BUGFIX] Rules: Close PromQL query after each rule evaluation to ensure resources are released. [#18733](prometheus/prometheus#18733) - \[BUGFIX] Scaleway SD: Resolve VPC/IPAM-only instances that have no legacy `private_ip` or `public_ip` field, but do have private NICs attached. [#18772](prometheus/prometheus#18772) - \[BUGFIX] TSDB: Do not leak head series when an integer histogram append is rejected (e.g. out-of-order). [#18838](prometheus/prometheus#18838) - \[BUGFIX] UI: Escape label values offered by PromQL autocomplete. [#18658](prometheus/prometheus#18658) - \[BUGFIX] TSDB: Fix chunk snapshot encoding for EncXOR2 chunks, preventing corruption on TSDB restart when EncXOR2-encoded series were present. [#18739](prometheus/prometheus#18739) - \[BUGFIX] TSDB: Store a millisecond timestamp (not a WAL segment number) in walExpiries when a series is evicted via CompactStaleHead/CompactSelectedSeries, so the series's label record is correctly retained in the next WAL checkpoint and replays cleanly. [#18847](prometheus/prometheus#18847) - \[BUGFIX] TSDB: Prevent loss of samples at the chunk-range boundary when CompactSelectedSeries (and CompactStaleHead) evict the series — the per-slice compaction loop now runs one more iteration so the boundary timestamp is captured in a block before the in-memory copy is removed. [#18849](prometheus/prometheus#18849)
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