chore(deps): update monitoring services

[renovate]

This PR contains the following updates:

Package	Update	Change
grafana/grafana	patch	13.0.1 → 13.0.2
prom/alertmanager	patch	v0.32.1 → v0.32.2
prom/prometheus	minor	v3.11.3 → v3.12.0

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Release Notes

grafana/grafana (grafana/grafana)

v13.0.2

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prometheus/alertmanager (prom/alertmanager)

v0.32.2: 0.32.2 / 2026-06-05

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• [BUGFIX] Fix dispatcher goroutine leaks on destroyed alertgroup swap. #​5241

prometheus/prometheus (prom/prometheus)

v3.12.0: 3.12.0 / 2026-05-28

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This release contains security fixes, new features (especially around PromQL and Service Discovery), performance improvements in TSDB, Start Timestamp improvements and numerous bug fixes.

Thanks to all contributors!

Key Highlights

• Security: Two security vulnerabilities have been addressed: a denial of service in remote-write (snappy decompression limit) and a secret exposure leak in STACKIT service discovery.
• PromQL & Metadata: Several features and bug fixes related to the experimental "start timestamps" support, including updates to rate(), irate(), increase(), and resets(). New experimental functions start(), end(), range(), and step() are introduced.
• TSDB Performance: Optimizations in head chunk lookup (constant time) and mmap operations to reduce CPU usage.
• Service Discovery: Added support for DigitalOcean Managed Databases and Outscale VM, along with improvements to AWS SD (IPv6 support for EC2, external ID support).
• UI: Added a web interface for deleting time series and cleaning tombstones.

Changelog

• [SECURITY] Remote: Reject snappy-compressed received requests via Remote Write whose declared decoded length exceeds the 32MB. Thanks to @​hibrian827 for reporting it. #​18642
• [SECURITY] STACKIT SD: Fix secrets being exposed in plaintext via /-/config endpoint. Thanks to @​August829 and @​Phaxma for reporting. GHSA-39j6-789q-qxvh #​18649
• [CHANGE] TSDB/Agent: Adds Start Timestamp field to all WAL Histogram samples in memory; used st-storage flag is enabled. #​18221
• [FEATURE] API: Add /api/v1/status/self_metrics endpoint returning the current state of the Prometheus server's own metrics about itself as JSON. #​18411
• [FEATURE] Discovery: Add DigitalOcean Managed Databases service discovery #​18287
• [FEATURE] Prometheus: Add support for the aix/ppc64 compilation target #​18321
• [FEATURE] Discovery: Add Outscale VM service discovery (outscale_sd_configs) for discovering scrape targets from the Outscale Cloud API. #​18139
• [FEATURE] PromQL: Emit a warning when sort, sort_by_label or sort_by_label_desc is used within range (matrix) queries, as these functions do not have effect in that context. #​18498
• [FEATURE] PromQL: Add start(), end(), range(), and step() experimental functions #​17877
• [FEATURE] PromQL: Update resets() function to consider start timestamp resets. Hidden behind use-start-timestamps feature flag. #​18627
• [FEATURE] Prometheus: Promote auto-reload-config as stable #​18620
• [FEATURE] TSDB/Agent: Add CheckpointFromInMemorySeries option to agent.DB that enables checkpoint based on in-memory series. #​17948
• [FEATURE] UI: Add a web interface for deleting time series and cleaning tombstones, accessible from the Status menu. #​18390
• [FEATURE] PromQL: Use start timestamps for rate(), irate(), and increase() calculations, behind a feature flag use-start-timestamps. Doesn't work together with extended range selectors anchored and smoothed. #​18344
• [FEATURE] Scrape: Added a feature flag st-synthesis which synthesizes unknown STs for scraped cumulative metrics. Useful when Remote Writing 2.0 with delta or Otel-based backends. #​18279
• [FEATURE] promqltest: support @st annotation in load blocks to specify per-sample start timestamps. #​18360
• [ENHANCEMENT] API: reject concurrent fgprof profiles. #​18651
• [ENHANCEMENT] AWS SD: Add optional external_id field to ECS/MSK/RDS/Elasticache. #​18579
• [ENHANCEMENT] AWS SD: Add optional external_id field. #​17171
• [ENHANCEMENT] Discovery: Propagate SD target updates faster by introducing dynamic backoff interval instead of static 5s interval for throttling. #​18187
• [ENHANCEMENT] Promtool: Add --header flag to query instant command, matching existing query range behaviour. #​18418
• [ENHANCEMENT]: AWS SD: Allows EC2 service discovery to discover IPv6 addresses to communicate with target endpoints. The private IPv4 address remains the default when both IPv4 and IPv6 addresses are present. #​16088
• [PERF] TSDB: Make head chunk lookup in range queries constant time instead of quadratic time #​18302
• [PERF] TSDB: Skip entire stripes in mmapHeadChunks when no series need mmapping, reducing CPU utilization significantly at production-relevant scales. #​18541
• [PERF] TSDB: Skip clean series during periodic head chunk mmap using cached head chunk count #​18272
• [PERF] PromQL: Address FloatHistogram.KahanAdd performance regression on Go 1.26. #​18568
• [BUGFIX] PromQL: Fix info() function incorrectly handling negated __name__ matchers #​17932
• [BUGFIX] API: Return duration expressions in /parse_ast. #​18624
• [BUGFIX] API: correctly document formats accepted for duration query request parameters (step, timeout and lookback delta) in OpenAPI spec #​18305
• [BUGFIX] Scrape: AppenderV2 now tracks staleness even when OOO/duplicate series errors happen similar to AppenderV1 #​18567
• [BUGFIX] Config: Validate remote_write queue_config fields at load time to prevent runtime panic and silent misconfiguration. #​18209
• [BUGFIX] Discovery/Consul: Add health_filter for Health API filtering, fixing breakage when using Catalog-only fields like ServiceTags in filter. #​18479 #​18499
• [BUGFIX] OTLP: limit decompressed body size for gzip-encoded OTLP write requests. #​18408
• [BUGFIX] PromQL: Fix smoothed rate/increase returning zero instead of no result when all data falls strictly after the query range. #​18523
• [BUGFIX] PromQL: Fix metric name not being dropped when last_over_time or first_over_time is applied to subqueries containing name-dropping functions like abs(). #​18409
• [BUGFIX] PromQL: Fix missing warning when mixing exponential and custom-bucket histograms in stats queries. #​18660
• [BUGFIX] PromQL: Fix parsing of range() keyword in duration expressions such as foo[5m+range()]. #​18623
• [BUGFIX] PromQL: Fix smoothed vector selector returning no results in binary operations when the @ modifier is used. #​18531
• [BUGFIX] PromQL: Reject NaN, infinite, and out-of-range duration expressions instead of silently producing an out-of-range time.Duration. #​18639
• [BUGFIX] Scrape: Fix panic when scraping malformed native histograms. #​18414
• [BUGFIX] Scrape: fix panic when scraping a target exposing a summary with no quantiles via the protobuf format. #​18382
• [BUGFIX] Scrape: fix scrape failure log file occasionally not applied after a configuration reload. #​18421
• [BUGFIX] TSDB: Allow retention percentage with new data path. #​18628
• [BUGFIX] TSDB: Preserve decimal precision in percentage-based retention #​18374
• [BUGFIX] TSDB: fix prometheus_tsdb_head_chunks going negative after WAL replay #​18401
• [BUGFIX] TSDB: panic with native histograms during query of overlapping chunks. #​18692
• [BUGFIX] Tracing: fix startup failure for insecure OTLP HTTP tracing #​18469
• [BUGFIX] UI: Escape label values offered by PromQL autocomplete. #​18658
• [BUGFIX] UI: Improve Y-axis tick label precision for graph values over small ranges. #​18682
• [BUGFIX] prometheus_sd_refresh* and prometheus_sd_discovered_targets metrics for specific scrape jobs are deleted when the scrape job is removed. #​17614
• [BUGFIX] Remote: fixed validation for received RW2 requests when parsing metadata unit symbols. This fixes a case when request would cause (recovered) handler panic. #​18641
• [BUGFIX] TSDB/Agent: fix race in agent appender where concurrent appends for the same label set could produce duplicate in-memory series and duplicate WAL records. #​18292
• [BUGFIX] Config: Update --enable-feature flag description and sort feature names. #​18487

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