opensearch-project/OpenSearch-Dashboards 3.9.0

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Version 3.9.0 Release Notes

Compatible with OpenSearch and OpenSearch Dashboards version 3.9.0

Features

• Add confirmation dialog before saving a generated dashboard (#12741)
• Add human-in-the-loop support to the chat plugin, allowing the agent to pause and ask the user a question (#12661)
• Add text-to-dashboard and create-chart-with-transformation tools to the chat assistant (#12501)
• Add Text2Vis tool enabling AI-driven visualization generation from natural language in chat (#12595)
• Integrate Switch Data Source feature with Human-in-the-Loop for cross-data-source chat sessions (#12662)
• Add command palette with Cmd+K / Ctrl+K shortcut integrating global search, pages, saved assets, and actions (#12652)
• Add collapsible sections to dashboards with drag-and-drop reordering, behind an opt-in feature flag (#12685)
• Add Text variable type and "Allow custom values" toggle for Dashboard Variables (#12567)
• Add PromQL query type support for Dashboard Variables with label names, label values, metrics, and series query modes (#12627)
• Add regex capture group support for extracting variable values and labels in Dashboard Variables (#12390)
• Add shared crosshair synchronization across time-series panels on dashboards (#12616)
• Add panel title and description settings to Explore visualizations with dashboard variable interpolation (#12617)
• Add Analyze panel in Explore Logs to display PPL query execution plans with waterfall graph (#12399)
• Add Patterns tab support for SQL in Explore (#12576)
• Add histogram support for SQL queries in Explore (#12623)
• Add scatter chart rule for X + Y + size dimensions in Explore visualizations (#12483)
• Add stack mode for bar and area charts in Explore visualizations (#12589)
• Add unit formatting, min/max axis bounds, decimal precision, and unit suffix to Explore charts (#12625)
• Add step configuration, min step, series label, and PromQL interval macro support for Prometheus in Explore Metrics (#12644)
• Add step configuration and series label support for Prometheus in the visualization editor (#12684)
• Add AI-assisted fix path for PPL lint diagnostics via chat with Apply/Dismiss card (#12465)
• Add context-fed PPL lint rules, hover card improvements, and headless lint API for cross-repo CI (#12464)
• Add invalid-capture-group-name and explain-backed pushdown PPL lint rules (#12411)
• Add index-pattern metadata PPL lint rules for aggregation-on-text, flat-object subfield, and type-mismatch-numeric (#12394)
• Add AI assistant integration in Discover with apply-query tools, error help buttons, and enhanced T2PPL handling (#12541)
• Add Vega input signal value restoration on dashboard refresh (#12458)
• Add wizard to migrate unassigned saved objects into a workspace (#12502)
• Allow custom ID to be specified on workspace creation (#11631)

Enhancements

• Add hint for hidden Optimized Engine data sources in legacy visualization data source selectors (#12470)
• Add usage telemetry for Dashboard Variables including load, create, update, delete, and value change events (#12592)
• Bring visualization panel context to Ask AI action inside dashboards (#12590)
• Rename "OpenSearch SQL" to "SQL" in the language picker for consistency with DQL, Lucene, and PPL (#12713)
• Add column resizing with a dedicated drag handle in table visualizations (#12534)
• Surface PPL partial-result warnings in Explore with an opt-in application setting (#12481)
• Update Analyze panel to reflect backend changes with waterfall timing, cancellation, and recommendation support (#12600)
• Improve Explore query builder candidate ordering and add builder-only workspace setting (#12524)
• Rebuild the Explore query language picker as a two-column source and language panel (#12659)
• Polish trace details with Gantt waterfall, timeline zoom slider, filter bar, and per-trace service map (#12636)
• Move Explore header actions next to the time picker, fill Refresh button, and fix wrapped-header overflow (#12645)
• Load dataset selector list from lightweight metadata to improve dropdown performance (#12634)
• Separate and expose a generic reusable query panel editor from Explore (#11753)
• Add default descending sort by timestamp for PPL queries in Discover (#12546)
• Suppress chat input auto-focus when the chat window auto-opens during bootstrap (#12591)
• Show user message immediately with optimistic rendering in chat (#12485)
• Add telemetry events for chat tool execution and window visibility (#12508)
• Auto-focus chat input and record telemetry on suggestion click (#12593)
• Add open-state data-test-subj to the chat header button for functional test observability (#12688)
• Standardise copy icon and add tooltip to the recent queries copy button (#12675)
• Enhance maximum workspace listing with pagination support and maximum_workspaces config integration (#12498)
• Support cross-chat-window PPL lint fix apply and expose configured agent IDs (#12643)
• Make Discover AI chat page context language-aware for filters and time range (#12596)
• Update prompt for the PPL query execution chat tool (#12537)

Bug Fixes

• Fix Discover Traces time field picker offering invalid options and defaulting to the wrong field for OpenTelemetry indices (#12510)
• Fix backward-compatible legend title selector for charts 71 upgrade (#12462)
• Fix PromQL dataset not selectable in Dashboard Variables flyout (#12513)
• Fix Vega MDS client wrapper failing on specs with no data field or nested composition structures (#12533)
• Fix agent traces trace map latency bar always showing 50% regardless of actual duration (#12194)
• Fix branding applicationTitle not applied to the overview page (#11555)
• Fix CSP modifications dropping nonce, lowercasing case-sensitive values, and mishandling semicolons (#12440)
• Align global banner sidecar offset with the shared CSS variable mechanism used by flyouts and toasts (#12588)
• Restore variable autocomplete in the visualization query editor (#12521)
• Flatten DQL parser OR/AND clauses to prevent deeply nested bool queries (#12505)
• Fix invisible histogram tooltip value text in light mode after charts upgrade (#12674)
• Stop discover:sampleSize from truncating PPL aggregation results (#12511)
• Map the permissions and workspaces fields on multi-tenancy tenant index during migration (#12578)
• Preserve encrypted credentials when editing data sources (#12437)
• Fix N+1 saved-object lookups on Explore Traces/Logs page load reducing serial network time (#12630)
• Harden Traces grid links and trace query error handling for incomplete field metadata (#12686)
• Fix span-details flyout leaking its query into the main editor and remove timestamp value filter (#12648)
• Stop the Patterns tab from running the raw user query after a page reload (#12573)
• Skip query execution for a blank SQL query when selecting a dataset (#12664)
• Fix Statistics tab hit counter mixing buckets and documents for PPL aggregation queries (#12568)
• Shift overlay components (flyouts, toasts, bottom bar) clear of a docked chat sidecar (#12344)
• Fix apply_query_action returning 0 resultsCount when hits is 0 but rows are not empty (#12726)
• Show metric graph with the full selected time range on the x-axis by default (#12608)
• Guard PanelDataService.getInstance() against uninitialized state when contextProvider is disabled (#12597)
• Fix preserved pie chart colors and legend visibility resetting on dashboard remount (#11832)
• Show split series names in metric chart tiles instead of the aggregation name (#12471)
• Cap horizontal Vislib legend height to prevent chart area compression with many field values (#12566)
• Fix clipped boundary bars when showing the full time range on bar charts (#12711)
• Fix histogram bucket precision for integer-valued data and floating-point display artifacts (#12560)
• Normalize grouped unit conversion to stay within the same measurement system (#12631)
• Preserve opposite dashboard and visualization filters when deduplicating by negation state (#12612)
• Preserve threshold input focus during sorting by assigning stable row identities (#12725)
• Keep the style panel mounted while loading to preserve accordion state across updates (#12476)
• Fix permission match logic in translatePermissionsToRole to check all principals and support wildcards (#12624)
• Fix index dataset handling in visualization editors to preserve data source and exclude PPL-only datasets from legacy picker (#12737)
• Integrate with dynamic config service for maximum workspaces to prevent silent truncation (#12479)
• Remove DQL and Lucene field capability override that made unsupported fields appear filterable (#12444)
• Fix TSVB date histogram tooltips displaying raw epoch milliseconds instead of formatted dates (#12678)
• Use correct dataset for Prometheus data connections in variable query panel autocomplete (#12527)
• Improve horizontal bar gauge layout with full series labels and aligned value columns (#12704)
• Improve legend selection interactions with click-to-focus and Ctrl/Cmd-click multi-selection (#12703)
• Hide single-item legends in Explore visualizations and tighten split metric panel height (#12540)
• Keep Prometheus series distinct by metric name in Explore Metrics (#12682)
• Gate /api/chat/proxy on workspace access to prevent unauthorized workspace ID forwarding (#12705)
• Fix global search asset search to use trailing wildcard for prefix matching (#12750)
• Support SQL language in the Explore visualization editor (#12628)
• Scope PPL lint AI-fix tools to an active fix flow to prevent stale tool registration (#12650)
• Centralize PPL lint release rule behavior, fix hover card links, and add progressive severity rendering (#12526)

Infrastructure

• Align S3 Cypress and Lighthouse CI with OpenSearch 3.4.0 (#12413)
• Disable security plugin via config in S3 Cypress workflow instead of removing it (#12603)
• Fix flaky telemetry_service test by mocking global fetch (#12512)
• Exercise double-send guard in chat window validation test (#12602)
• Rename Cypress test file for dashboard variables (#12531)

Documentation

• Document PPL lint architecture, activation, rule catalog, and maintenance procedures (#12525)
• Regenerate _sidebar.md to include 3.8.0 release notes (#12500)
• Add RyanL1997 as a maintainer (#12736)

Maintenance

• Bump @opensearch-project/oui from 1.24.1 to 1.24.2 (#12564)
• Upgrade @faker-js/faker to 10.6.0, browserslist to 4.28.8, @hono/node-server to 1.19.17 (#12614)
• Upgrade axios to 1.18.1, brace-expansion to 1.1.16, fast-uri to 3.1.4 (#12432)
• Upgrade colord to 2.10.0 to address CVE-2026-85062 (#12723)
• Upgrade dompurify to 3.4.12 and adm-zip to 0.6.0 (#12477)
• Upgrade fast-uri to 3.1.6 (#12654)
• Upgrade js-yaml to 4.3.1, dompurify to 3.4.13, tar to 7.5.22, less to 4.8.1, postcss to 8.5.23 (#12561)
• Upgrade qs to 6.16.0, joi to 18.2.8, hono to 4.13.5, js-yaml to 4.3.2 (#12698)
• Upgrade postcss to 8.5.23 to address CVE-2026-69153 (#12528)
• Upgrade brace-expansion to 1.1.18 and 2.1.4 to fix CVE-2026-14257 (#12507)
• Upgrade peg.js to peggy for actively maintained parser generator (#12544)
• Fix version increment workflow to use fork and bump version to 3.9.0 (#12547)
• Namespace chat_tool_executed telemetry fields and add duration metric (#12656)
• Remove Explore visualization editor workspace gating so it is available in all workspace types (#12637)

Refactoring

• Refactor Explore visualization legend generation with typed legend items and consistent split-chart colors (#12509)
• Refactor gauge chart labels to render with React instead of ECharts custom series (#12555)
• Deduplicate query error handling between data and discover plugins (#12604)
• Drive Explore tab visibility off supportedLanguages instead of hardcoded language checks (#12575)