Self-hosted LangSmith changelog

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langsmith-0.13.33

• Added ability for users to find account labels for first-class providers.
• Fixed issue where switching alerts did not switch the chart.
• Fixed KeyError for experiments with attachments.
• Added a dismiss button to the agentify banner in the UI.
• Improved responsiveness in run details header and trace comparisons.
• Fixed subpixel bleed on body rows in repetition summary table.
• Fixed a race condition in the smith-backend run archive check.
• Fixed nine medium security alerts, including four high security ones.
• Renamed ‘Metadata’ to ‘Attributes’ in comparison detail pane.
• Implemented new toggle panel size button in RepetitionDetailPane.
• Updated model cards in the frontend.
• Fixed load prompt picker when opening playground from experiments table.
• Enabled granular usage rollup cron for self-hosted instances.
• Enhanced audit logs with more CUD operations.
• Added integration migration for the Ashby tool in the Agent Builder.
• Improved performance by parallelizing graph loading and eliminating redundant MCP fetches in agent-builder.
• Added auto expand/collapse keys functionality.
• Added blue hover state to trace comparison divider.
• Avoided proxy MITM races during sandbox startup.
• Fixed granular usage chart bar height calculation.
• Added Dynatrace webhook integration for alerts.
• Added feedback banner for experiment sidebar redesign.
• Added attachments to experiment detail panes in the frontend.
• Wired Arcade integration to real OAuth flow in the agent-builder.
• Prevented loading flash in host revisions table during revalidation.
• Fixed imports in host backend for truststore.
• Improved handling of authentication middleware error logging in agent-builder.
• Fixed editing prompt in evaluator.
• Fetch full run data in new experiment detail pane to improve data loading experience.

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langsmith-0.13.32

• Added ability for users to find account labels for first-class providers.
• Fixed issue where switching alerts did not switch charts accordingly.
• Fixed key error for experiments with attachments.
• Added dismiss button functionality to the agentify banner.
• Improved responsiveness in run details header and compare traces.
• Added truncate property to feedback chips list to respond to container width.
• Fixed subpixel bleed on body rows in the repetition summary table.
• Fixed race condition in AQ run archive check.
• Patched 9 medium security alerts and 4 high security alerts.
• Renamed Metadata to Attributes in the comparison detail pane.
• Enabled toggle panel size button in RepetitionDetailPane.
• Updated model cards in the frontend.
• Fixed issue to load prompt picker when opening playground from experiments table.
• Properly disabled environment promotion buttons for users without tag permissions.
• Enabled granular usage rollup cron for self-hosted instances.
• Onboarded more CUD operations for audit logs.
• Added Ashby integration migration to Agent Builder.
• Improved performance by parallelizing graph loading and eliminating redundant MCP fetches in Agent Builder.
• Automatically expanded/collapsed keys for improved UI.
• Fixed blue hover state for trace comparison divider.
• Avoided MITM races during sandbox startup with Smithbox proxy.
• Fixed bar height calculation in the granular usage chart.
• Added Dynatrace webhook integration for alerts.
• Displayed toast notification on “run now” button click in Forge.
• Handled non-string resource fields in MCP OAuth discovery.
• Added feedback banner for experiment sidebar redesign.
• Added example attachments to experiment detail panes.
• Wired Arcade integration to real OAuth flow in Agent Builder.
• Fixed loading flash in host revisions table during revalidation.
• Fixed imports in host backend for truststore.
• Added request context to authentication middleware error log in Agent Builder.
• Fixed editing prompt feature in evaluator.
• Fetched full run data in new experiment detail pane.

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langsmith-auth-proxy-0.0.9

• Fixed ABAC permission checks path prefix for improved self-hosted security.
• Improved handling of DotDict in agent-builder for better decryption of passthrough headers.
• Added network allow denylist for enhanced infrastructure security.
• Added access control UI for sandbox proxy to improve user interface management.
• Improved handling of GCS workload identity in storage with a health check feature.
• Added timeout and reduced concurrency for scheduled insights jobs, enhancing performance.
• Reduced number of preload chunks during initial frontend load to improve loading speeds.
• Cached /info and /auth/v1/user responses in localStorage for improved performance.
• Enabled JWT generation for auth-proxy in playground service.
• Recreation of feedbacks index to fix backend issues.
• Implemented repository ownership gating for workspace skill editing in agent-builder.
• Generated evaluator JWTs for LLM-as-judge evaluations in backend.
• Always displayed creator name on agent workspace card for better transparency.
• Added static TTL expiry for sandbox claims for better claim management.
• Enabled Slack channels for personal agents in the agent builder.
• Revised inbox tab order for improved user experience.
• Introduced comparison view details pane for more comprehensive data analysis.
• Fixed UI issues including checkbox replacements in various sections for improved user interface consistency.
• Added support for Google IAP session refresh for self-hosted deployments.
• Improved handling of tool registry in playground with delete functionality.
• Added prompt tag environments for enhanced backend configuration.
• Added secret reference support for specifying environment variables in host-backend.
• Updated components and fixed issues with self-hosted deployments.

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langsmith-0.13.31

• Fixed path prefix issue for ABAC permission checks to improve self-hosted deployments.
• Enhanced agent builder to handle DotDict structures in decrypt passthrough headers.
• Supported dark mode for fleet logos by using currentColor.
• Updated Slack reauthentication copy with a link to the integrations page in the agent builder.
• Added network allowlist and denylist functionality.
• Introduced UI for access control for sandbox proxy.
• Fixed CopyObject for GCS workload identity and added a copy health check.
• Reduced concurrency and added timeout for scheduled insights jobs to improve performance.
• Reduced the number of preload chunks during initial load to enhance frontend performance.
• Cached /info and /auth/v1/user responses in localStorage for faster loading.
• Integrated JWT generation for auth-proxy in playground service.
• Improved agent builder: skill editing gated by repository ownership.
• Enabled LLM-as-judge evaluation by generating evaluator JWTs.
• Always showed creator names on agent workspace cards.
• Added repetition support to run details panel in experiments.
• Made the apply button size in the playground consistent with other buttons.
• Added settings for aud in the auth proxy UI.
• Fixed LLM auth proxy JWT signing key loading from environment variables.
• Supported Google IAP session refresh for self-hosted deployments.
• Enabled Slack channels for personal agent builders.
• Added service key authentication to runs, sessions, and sandbox endpoints.
• Reordered inbox tabs for better user navigation.
• Added TTL fields to the sandbox UI for clearer management.
• Replaced checkboxes in various UI parts for enhanced interaction consistency.
• Supported internal CLIO_LANGGRAPH_URL for better integration.
• Added support for specifying environment variables from secret reference in host-backend.
• Updated langgraph-api version to fix self-hosted 403 errors.

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langsmith-0.13.30

• Fixed path prefix for ABAC permission checks in self-hosted environments.
• Added handling for DotDict in decrypt_passthrough_headers within the Agent Builder.
• Added network allow denylist feature for improved network security.
• Added a UI for access control in sandbox proxy.
• Fixed CopyObject for GCS workload identity and added a copy health check.
• Reduced concurrency and added timeout for scheduled insights jobs to improve performance.
• Reduced number of preload chunks during initial frontend load for faster loading.
• Supported OpenAI chat completion integration.
• Cached /info and /auth/v1/user responses in localStorage for improved frontend performance.
• Added JWT generation for auth-proxy in the playground service.
• Recreated feedbacks index to improve data integrity.
• Gate workspace skill editing in Agent Builder by repo ownership.
• Added features for Slack channels in personal agents within the Agent Builder.
• Added static TTL expiry for sandbox claims.
• Enabled support for Google IAP session refresh in self-hosted environments.
• Supported internal CLIO_LANGGRAPH_URL configuration.
• Added support for specifying environment variables from secret references in host-backend deployments.
• Updated langgraph-api to fix a 403 error in self-hosted instances.

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langsmith-0.13.29

• Fixed ABAC permission checks for self-hosted deployments.
• Fixed handling of DotDict in decrypt_passthrough_headers within the Agent Builder.
• Improved dark mode support for fleet logo by using currentColor.
• Added network allow denylist feature for enhanced security.
• Added access control UI for sandbox proxy in the frontend.
• Fixed GCS workload identity and added a copy health check in storage.
• Reduced concurrency and added timeout for scheduled insights jobs to enhance performance.
• Added caching of /info and /auth/v1/user responses in localStorage for improved frontend performance.
• Implemented JWT generation for auth-proxy in playground service for better security.
• Improved run status icon contrast in light mode on the frontend.
• Added static TTL expiry and TTL fields to sandbox claims for better session management.
• Enhanced Run Details panel with repetition support in experiments.
• Added support for Google IAP session refresh in self-hosted deployments.
• Fixed trace count dashboard issue when grouped by metadata key.
• Fixed the design of the run detail dropdown to improve user experience.
• Added feature to support RDS DB instance for Kubernetes platform.
• Added service key authentication to runs, sessions, and sandbox endpoints for enhanced security.
• Introduced foundation types and set-difference deduplication in messages.
• Enabled Slack channels for personal agents in Agent Builder.
• Improved error handling for non-UTF8 strings in queuing runs and V2 ingest.
• Updated Slack custom-app assistants to run as runner in Fleet.
• Added comparison view details, metrics table, and feedback to enhance the UI.
• Added support for specifying environment variables from secret references in host-backend for better infrastructure management.
• Bumped langgraph-api to fix a self-hosted 403 error.

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langsmith-0.13.28

• Fixed ABAC permission checks to improve self-hosted instance functionality.
• Enhanced agent builder by handling DotDict in decrypting passthrough headers.
• Improved fleet logo for better dark mode support.
• Updated Slack reauthorization required message with link to integrations page in Agent Builder.
• Added network allow-deny list feature.
• Introduced new access control UI for the sandbox proxy.
• Fixed GCS workload identity in storage and added copy health check.
• Reduced concurrency and added timeout for scheduled insights jobs.
• Enhanced frontend performance by reducing the number of preload chunks during initial load.
• Added caching for /info and /auth/v1/user responses in localStorage to improve frontend performance.
• Enabled JWT generation for auth-proxy in playground service for enhanced security.
• Recreated feedbacks index in the backend for storage optimization.
• Implemented gating for workspace skill editing by repo ownership in the Agent Builder.
• Added static TTL expiry for sandbox claims for improved management.
• Enabled Slack channels for personal agents in Agent Builder.
• Adjusted frontend contrast for run status icons in light mode for better visibility.
• Implemented JWT generation for LLM-as-judge evals to enhance evaluation security.
• Always display creator name on agent workspace cards for better transparency.
• Reordered inbox tabs to improve navigation.
• Supported Google IAP session refresh in self-hosted environments.
• Replaced MUI checkboxes in various sections to improve UI consistency.
• Improved experimental evaluator SAQ timeouts matching online eval paths for better performance.
• Supported RDS DB instance on k8s platform for enhanced infrastructure flexibility.
• Loaded LLM auth proxy JWT signing key from LANGSMITH_SIGNING_JWKS to align with security standards.
• Improved run detail dropdown design for a better user experience.
• Added service key authentication to runs, sessions, and sandbox endpoints for enhanced security.
• Added LangChain vendor extractor to enhance message processing capabilities.
• Fixed parsing errors related to cache reads impacting costs for better performance metrics.
• Introduced support for specifying environment variables from secret references for improved configuration management.

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langsmith-auth-proxy-0.0.8

• Added frontend connection to Forge, improving user interaction.
• Enhanced the Agent Builder with a grayed-out identity option in badges for better UI clarity.
• Fixed icon compatibility with Radix tooltips to better display information.
• Made the tracing support email a clickable mailto link for user convenience.
• Updated Forge settings with a connection option to GitHub repositories.
• Fixed removal of stray “Linked” fallback in the UI for cleaner interface.
• Introduced a new endpoint to support offline self-hosted Agent Builder usage.
• Improved the UI by aligning ‘no attachments’ text to the left within a row.
• Updated the styling for Polly shortcut using kbd styling for consistency.
• Fixed the connect/disconnect button functionality for Slack integrations.
• Redesigned the secrets settings page for a better UX.
• Added migrations for prompt environments to support backend updates.
• Prevented long text from overflowing in DeleteConfirmationModal for better text handling.
• Made the display name on members table inline editable for user flexibility.
• Enabled tenant isolation for price map insertion to enhance multi-tenancy support.
• Fixed frontend issues with tab highlighting to ensure correct navigation feedback.
• Fixed the vacuous connected state on tool badges within the Agent Builder.
• Added authentication support for ABAC and hub repositories.

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langsmith-auth-proxy-0.0.7

• Added forge frontend and GitHub repository connection to forge settings.
• Improved Agent Builder by showing a grayed-out identity option in AgentTypeBadge trigger.
• Fixed a bug in the frontend to make the tracing support email a mailto link.
• Fixed UI issue by removing stray “Linked” fallback.
• Added a new endpoint to support offline self-hosted Agent Builder usage.
• Fixed the alignment of ‘no attachments’ text in the UI.
• Fixed the render of polly shortcut with kbd styling like theme selector.
• Fixed the connect/disconnect button functionality for slack integrations.
• Added migrations for prompt environments in the backend.
• Fixed text overflow issue in DeleteConfirmationModal.
• Added inline editable display name feature on members table.
• Fixed tenant isolation in price map insertion.
• Fixed an issue to prevent the wrong tab from being highlighted on click in the frontend.
• Fixed vacuous connected state on the tool badge in Agent Builder.
• Added new authentication (Auth split ABAC + hub repos) capabilities.

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langsmith-0.13.27

• Organization admins can now edit member display names inline from the members table in Settings.
• Multipart ingestion requests no longer accept Inputs, Outputs, or Events as inline fields. These must be sent as dedicated out-of-band parts.
• Tracing support email on the Home page error banner is now a clickable mailto link.
• Improved run details tab highlighting so selected sections stay correctly highlighted near scroll boundaries.
• Improved keyboard shortcut rendering in the chat assistant tooltip.
• Fixed connect/disconnect button on Slack integrations.
• Added prompt environments support.

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langsmith-0.13.26

• Sub-agents spawned during Fleet conversations now display real-time status cards inline in the chat, with a detail sidebar showing the sub-agent’s live timeline, tool calls, and results.
• Prebuilt LLM evaluators now use strict structured output mode by default. Strict mode automatically toggles when switching between OpenAI and non-OpenAI model providers.
• Fixed a bug where online evaluator scores were lost when the evaluation succeeded on a retry but the total job time exceeded the queue timeout.
• Deleting a run from an annotation queue now fully removes it instead of incorrectly marking it as completed.
• Included per-annotator feedback in experiments CSV export.
• Uploading dataset examples with invalid UTF-8 in inputs or outputs now returns a 422 error instead of a 500.
• Reduced CPU and memory requirements for dev and dev_free self-hosted deployments.
• Reject insecure default JWT secret at startup for improved security.
• Updated brand colors for neutral backgrounds and surfaces.
• Renamed prompt usage example label from “Use object in LangChain” to “Use Programmatically”.
• Fixed agent zip upload to correctly place cron schedules in the Schedule section.
• Inbox now sorts the All tab by recency and properly wraps long messages in preview.
• Fixed chat assistant tooltips rendering behind the chatbox.
• Added ABAC authorization middleware.

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langsmith-0.13.25

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langsmith-0.13.24

• Added rich markdown editor with toolbar and slash commands in Fleet.
• Added skill creation flow with page entry and navigation in Fleet.
• Annotation queue CSV exports now include per-annotator feedback scores and a reviewer notes column.
• Fixed dataset metadata filters not matching number fields across pages.
• Fixed datasets table only showing first page of results on tall screens.
• Alert like/notlike filters on error, inputs, and outputs now correctly match individual tokens instead of the full phrase.
• Fixed list_runs tool crashing when the LangSmith API returns an error.
• Fixed stray artifact in system prompt for Gemini models.
• Accepting an organization invite now navigates to the newly joined organization.
• Improved Playground auto-scroll during streaming output.
• Added workspace scope display for personal API keys.
• Bumped Python to 3.13 and pinned OpenSSL to resolve security vulnerabilities.
• Blocked shell injection characters in build/install commands.
• Improved Polly assistant understanding of traces and runs.
• Fixed baseline experiment stats not showing on initial page load.
• Fixed duplicated x-axis date labels on the insights time series chart.
• Re-enabled ABAC for listing datasets.
• Added ABAC runs delete endpoint.

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langsmith-0.13.23

• Patched security vulnerabilities in smith-frontend.
• Patched security vulnerabilities in smith-polly.
• Fixed a code injection vulnerability.
• Restricted --allow-run to only the deno binary in smith-ace.
• Fixed XSS vulnerability by escaping URLs in the RichTextEditor.
• Fixed Playground functionality in self-hosted environments.

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langsmith-0.13.21

• Internal updates and maintenance.

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langsmith-0.13.20

• Improved async sandbox creation UI with status polling for a smoother user experience.
• Added JSON/YAML syntax highlighting to experiment comparison for better readability.
• Improved thread trace opening behavior in the frontend, removing the need for an expand button.
• Eliminated n+1 query issue in the backend for listing personal access tokens, improving performance.
• Added a sandbox endpoint to smith-go, expanding API capabilities.
• Fixed support for OpenAI compatible endpoints with smith-polly integration.
• Timed out bulk exports stuck in CREATED status to avoid indefinite processing.
• Addressed issue where service identity access was blocked from creating repository endpoints.
• Recorded hub prompt commit in experiment session metadata for better session tracking.
• Improved authentication for /sessions shadow queries.
• Updated backend deployments with ABAC (Attribute-Based Access Control).
• Enhanced UI with projects and runs write permissions support.
• Added support for new models: GPT-5.4 and GPT-5.4 pro.
• Fixed large attachment image preview issue for better UI experience.
• Made GPT-5.4 the default OpenAI playground model, simplifying model selection.
• Increased maximum tags displayed in RunTags component for better visibility.
• Added models and prompts columns to experiments table, enhancing data insights.
• Resolved agent builder runs rejection issue when limit settings were changed.
• Fixed float errors in /sessions go endpoint for improved data handling.
• Returned fetched value when Redis cache SET fails, improving reliability.
• Enabled AWS IAM role support for agent builder, Polly, and Insights features.
• Redesigned custom chart CRUD in the frontend, enhancing user satisfaction.
• Introduced prompt filtering in the experiments table for targeted data analysis.
• Updated inbox counts and thread fetching logic in Agent Builder for real-time information.
• Added a feature to group experiments by prompt for streamlined data management.

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langsmith-0.13.19

• Internal improvements and maintenance updates.

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langsmith-0.13.18

• Introduced a redesigned run details view in threads for improved user experience.
• Fixed an issue where popovers were covering other content in the UI.
• Added Microsoft Outlook Calendar Tools to the Agent Builder for integration.
• Addressed bugs related to agent chat popups and placeholders in the Agent Builder.
• Improved support for disabling feedback comment filtering in self-hosted instances.
• Enhanced performance with improved code splitting in the frontend.
• Added model support for GPT 5.3 instant and GPT-5.3-chat-latest.
• Introduced a new single_run filter type for more refined querying.
• Added ability to read insights reports and show insights categories over time.
• Added drag-to-resize functionality with persistence in custom iframe output renderer.
• Enhanced security with more robust user migration processes.
• Enabled tagging support for evaluators and enhanced their reuse functionality.
• Fixed issues with session expired warnings after logout.
• Enhanced UI components for better user interaction in the playground and feedback tagging.
• Improved metadata handling in datasets and fixed overflow issues.
• Introduced support for Microsoft Teams Tools in the Agent Builder.
• Implemented better handling for OAuth provider updates.
• Added new /orgs/current/info endpoint to the platform-backend for more robust organizational information retrieval.
• Introduced compatibility testing for session API with added safety checks for PostgreSQL and Redis connections.
• Added functionality to bind Slack agents dynamically, enhancing the integration experience.

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langsmith-0.13.17

• Fixed a bug in the executor deployment handling for new operator versions.
• Added a setting to filter out internal helper threads from the inbox.
• Improved the evaluator’s page by providing context to Polly’s feedback.
• Forced trace filtering for dataset code evaluators to enhance stability.
• Updated OAuth mode management, restricting changes during updates.
• Fixed an issue with experiment cell colors to enhance user clarity.
• Improved the usage configuration modal to utilize a new TTL endpoint for trace retention.
• Addressed a bug where workspace invites were not displaying correctly in the UI.
• Applied brand color adjustments in dark mode and various UI elements.
• Enhanced OAuth callback security by preventing potential reflected XSS vulnerabilities.
• Added a dynamic OAuth feature for user management.
• Fixed a bug preventing filter updates when certain conditions were met.
• Implemented rebranding updates for the auth screen.
• Added a feature to collapse sidebar automatically on small viewports.
• Fixed issues with variable handling in playground evaluate mode.
• Enhanced the Agent Builder with infinite scroll and improved inbox fetching.
• Added a new Outlook Trigger feature in the Agent Builder.
• Upgraded agent-builder to use websockets and new OpenAI model API (gpt-5.3-codex).
• Fixed auto-save on API key during onboarding process.
• Resolved issues causing errors in the playground due to empty placeholders.
• Updated frontend with a new logo for favicon.
• Implemented ephemeral storage management in the sandbox, including UI support and defaults.
• Fixed authorization bugs in cron deployment for Gmail/Outlook.
• Updated styling in various UI components, including studio button and index column behavior.
• Enhanced onboarding snippets for better integration with Langchain Python.
• Added support for custom separators in SCIM group names.

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langsmith-0.13.16

• Internal improvements and maintenance updates.

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langsmith-0.13.15

• Added rebranded primary colors to button under feature flag in the frontend UI.
• Replaced dataset autocomplete with tag input to improve user experience.
• Auto-hide and position Models column in the frontend based on data.
• Fixed revalidation conflict in the Smith frontend.
• Improved workspace model configurations to prevent text overflow with tooltips.
• Surfaced Models option in Group By popover under a feature flag.
• Supported loading ChatAnthropicVertex model configs in Smith-Polly.
• Added “No matching filters” message for empty search results in Filter Component Select V2.
• Enabled navigating automatically to insights with global scroll support.
• Resolved issues with playground and evaluators provider selector not filtering out disabled providers.
• Improved messaging mode user experience and styling.
• Implemented Raw Query Mode for Inline Filters.
• Allow secret_key_ref to be None in K8sEnvVarSource for backend improvements.
• Fixed agent builder UI to wrap question text on narrow viewports and dismiss “Add API Key to Get Started” dialog.
• Updated UX to match evaluator button height with tool button pattern.
• Persisted selected model in local storage for a consistent UI experience.
• Auto-generated thread titles for improved thread management.
• Enhanced backend by gating secrets access with granular RBAC permissions.
• Implemented Outlook Email Tools in the Agent Builder.
• Improved keyboard shortcuts in the inbox feature of the Agent Builder UI.

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langsmith-0.13.14

• Fixed agent generation interruptions and handling, improving stability in the user experience.
• Fixed long feedback header text overflow when dragged to the last column.
• Added OAuth connections for built-in tools and providers on the tool page.
• Fixed crashes occurring on the run details page.
• Fixed onboarding dialog not fetching tools unnecessarily.
• Updated agent builder frontend to show real-time run count.
• Added private registry UI to the frontend.
• Enhanced support for SerializedConstructor model configs in playground and insights.
• Added Gemini 3.1 Pro model to playground and backend model lists.
• Fixed tool registry crash in the playground.
• Added support for Gmail authentication improvements, including refresh token capability.
• Added new API endpoints for running playground experiments using a new service.
• Improved UI for trace filters with version 2 UX using Filterbar.
• Enhanced syntax highlighting to match Figma design for standardization.
• Supported Gmail OAuth v2 with cron logic for higher reliability.
• Added new models column in the experiment view with updated filtering options.
• Supported multiple paths for query shadowing log improvements.
• Added UIs for managing and editing model API key names in the playground.

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langsmith-0.13.13

• Reverted the PostgreSQL version to v14.7 and the Redis version to v7. This fixes breaking changes introduced in langsmith-0.13.10.
• Fixed internal error details being leaked in 5xx responses to enhance security.
• Improved View UI by moving SaveViewButton from ViewDropdown and changing SaveForm to a modal for better usability.
• Added model select dropdown to the template creation flow for enhanced user experience.
• Added warning for duplicate URLs when creating MCP server to prevent configuration errors.
• Added user context to agents and sub-agents for better feature functionality.
• Added support for SerializedConstructor model configs in the playground for improved flexibility.
• Enhanced UI by showing categorical feedback in experiment view config and hiding the sort icon.
• Improved playground and experiment views by fixing cell alignment.
• Added image upload support to facilitate better asset management.
• Added onboarding dialog to general-purpose agent for improved user guidance.
• Added spinner to loading triggers skeleton for better loading indication.

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langsmith-0.13.12

• Improved button sizes and filter chip alignment in the InlineFilters UX.
• Added commit tags search and display to the Prompt Hub.
• Fixed issue with viewing experiments having objects for feedback scores.
• Enhanced tracing for the deploy_image task.
• Added a search bar for the new consolidated filter dropdown.
• Added environment variable for globally disabling personal access token creation.
• Added cost charts feature.
• Improved homepage styling and fixed related design issues.
• Fixed issues with rerendering in General Purpose API (GPA).
• Improved system to count PENDING, RETRY, and FAILED transactions in self-hosted offline usage reporting.
• Enhanced the agent builder to localize the current date to the user’s timezone.
• Added Bedrock inference profile dropdown to the playground.
• Improved error detection and messaging for server issues in agent-chat.
• Fixed styling issues including email count in invite modal and load state display in the agent editor.
• Implemented initial design for a tools page with feature flags.
• Added icon-only filter popover mode to the frontend filter UI.
• Added beacon endpoint for Self Hosted Agent Builder Runs Limiting.
• Enable new Granular Usage tab for reporting billable usage by workspace, project, user, and API key (enable with DEFAULT_ORG_FEATURE_ENABLE_GRANULAR_USAGE_REPORTING=true and GRANULAR_USAGE_TABLE_ENABLED=true environment variables in commonEnv)

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langsmith-0.13.11

• Improved Agent Builder by using persisted simple model config.
• Fixed UI for Playground with better message block and tool button consistency.
• Added a search bar for the new consolidated filter dropdown.
• Fixed agent builder model selector for users without ‘workspaces:manage’ permission.
• Added file upload feature for General Purpose Agent.
• Added button to create General Purpose Agent.
• Enhanced the Playground by preserving baseline setting in URL on page reload.
• Improved Playground experiment table UI and alignment.
• Fixed bulk deletion of datasets to update the table correctly.
• Added new API: workspace-scoped tool registry API.
• Improved support for multifield runFields.
• Enhanced insights scheduler with backend changes.
• Added ability to navigate pages in Polly and an initial set of base evaluations.
• Added tracing enhancements to Agent Builder, including tool call tracing.
• Integrated changes to support custom model configs temporarily.

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langsmith-0.13.10

• Internal improvements and maintenance updates.

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langsmith-0.13.9

• Fixed sorting of workspaces alphabetically in the new switcher to improve user experience.
• Improved playground with new tool modal design and model config popup windows for enhanced usability.
• Fixed issue with creating tags being idempotent.
• Modified Agent Builder to cache MCP tools list, session ID, and OAuth tokens for better performance.
• Fixed updated error message for exhausted agent builder runs.
• Fixed routing configuration for the agent builder /allow-run API endpoint.
• Fixed spacing of home page tables for improved UI.
• Fixed issue with datasets repeatedly fetching if empty.
• Fixed edit access for API keys for non-admin users.
• Added cost and token columns in the experiment view for better data insights.
• Fixed an issue where the Slack trigger was dropping messages due to authentication errors.
• Fixed boolean feedback values handling in comparison table cells.
• Updated service key subject for API calls to /allow-run for accurate authentication.
• Improved agent builder to use persisted simple model config.
• Fixed error state handling for OAuth login failures.
• Enhanced agent builder by ensuring threads display errors on reconnect in agent chat.
• Fixed UI to ensure the footer menu closes on organization switch.
• Improved tagging authentication by using specific resource auth.
• Enhanced UI to prevent closing the pane from within the app selector dropdown.
• Fixed potential SQL injection risks in feedback and annotation queue listing.
• Added a 15-second timeout to the OAuth HTTP client for improved connection reliability.

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langsmith-0.13.7

• Internal improvements and maintenance updates.

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langsmith-0.13.6

• Fixed an issue with truncated large numbers affecting the user interface.
• Improved error string conversion from S3 to enhance error handling.
• Updated Filters UX to save DateTimeRange, improving user experience.
• Fixed UUID conversion to ensure consistent general agent identification.
• Fixed agent ID conversion to always use a string instead of UUID for stability.
• Enhanced the experiment comparison view by showing custom computed columns.
• Fixed chat preview for langchain-shaped output for better user experience.
• Fixed pagination issues in sandbox for smoother navigation.
• Improved caching mechanisms and authentication control planes’ RetryableHTTP.
• Fixed the issue of incorrect tenant usage when bootstrapping agents.
• Improved user interface by adjusting page padding to remove visual obstructions.
• Updated wording for trace-related inquiries to improve clarity.
• Enhanced large field uploads to S3 for single run POST/PATCH endpoints.

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langsmith-0.13.5

• Fixed regression on cloning prebuilt dashboards to enhance user experience.
• Updated Filters UX to match new mocks and improved the view dropdown.
• Fixed Agent Builder by converting UUID to str before JSON encoding to prevent errors.
• Added an updated insights sidebar for a more informative UI.
• Implemented bulk actions for tables to improve data management efficiency.
• Added a redesigned feedback banner for annotation queue in the frontend.
• Provided option to require feedback in the Smith frontend to enhance user communication.
• Limited Agent Builder template list to 2 rows for better usability.
• Fixed cursor jumping issue when editing agent builder skill name and description.
• Solved SSO+SCIM issue, always provisioning users to workspaces.
• Fixed Slack Auth disconnecting issue for workspace users.
• Enhanced missing tool experience in the Agent Builder by adjusting prompts.
• Prevented session fixation in self-hosted OAuth for enhanced security.
• Fixed the ‘view run’ regression in the annotation queue redesign in Smith frontend.
• Reduced gRPC streaming chunk size from 1MB to 64KB for improved performance.
• Added download zip button inside the Agent Builder Explorer.
• Enhanced tracing URLs allowed by adding them to the Datadog RUM config.

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langsmith-0.13.4

• Fixed the toggle functionality for all column sections when clicking the Columns header.
• Fixed failure to edit SSO settings
• Improved frontend performance by using BarSeries instead of AnimatedBarSeries for granular usage tabs.
• Added a Cmd + Enter hotkey to the new annotation queue for enhanced user interaction.
• Added an option in the playground UI to mitigate loading errors by defaulting to use_responses_api=true.
• Added support for custom Azure models.
• Updated the playground UI for improved user experience.
• Improved studio chat UX with auto-resize textarea and keyboard shortcuts.
• Fixed prompt saving issue with incorrect naming.
• Improved visibility and user experience by making search icons larger and tracking navigation of AQ, prompts, and deployments.
• Enhanced UI for the Agent Builder with the introduction of a new Diff UI with context lines.
• Enabled accurate Y-axis margins using d3 nice ticks for better frontend visualization.
• Allowed the ‘recently added to’ section to pop over in the ‘add to dataset’ UI.
• Added pagination to the dashboard select view for better usability.
• Added support to limit long-lived TTL options and expose them in the org TTL settings endpoint.
• Fixed a bug with streaming flicker using the responses API in the playground.
• Enhanced the annotation queue user experience with custom output rendering in new queues.
• Optimized dataset session comparison using example_ids filtering for better performance.
• Provided a download ZIP file button in the Agent Builder for user convenience.
• Added a streamlined loading state for the Agent Builder’s agent generator graph.
• Allowed updating and creating SSO settings specifically in self-hosted environments.
• Added support for displaying SCIM user’s displayName attribute.

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langsmith-0.13.3

• Improved streaming to accumulate streamed delta data without loss.
• Added Google Sheets/Docs tools integration.
• Enhanced UX for OAuth servers in settings.
• Made view trace links more obvious in the UI.
• Resolved multiple bugs and performance issues in Agent Builder, including writing self-hosted Agent Builder runs to a single project and collapsing subagent tool cards by default.
• Improved experiment UI, now showing experiment descriptions on the single experiment page and fixing a blank page issue when accessing experiments via public URL.
• Enhanced UX by solving bulk export flakiness and allowing updating of bulk export destination credentials.
• Improved inline filter UX with multiple bug fixes and added edit functionality.
• Added support for configurable run input/output preview paths on the backend.
• Introduced new workspace management permissions for managing members’ access.
• Optimized Agent Builder to reduce network calls.
• Added Action Menu to MyAgents Navlink in Agent Builder.
• Improved frontend performance, including solving slowness when loading authentication status.
• Enhanced Agent Builder with the API Key Needed Label/Button and collapsed action cluster features.
• Resolved playground tool modal overflow issue.
• Improved security by fixing frontend vulnerability in remix run router and clearing URLs on logout to prevent workspace misdirection.
• Updated API to use invoices for monthly burndown tracking and added support for V2 API.
• Improved frontend to handle malformed LLM outputs gracefully.
• Improved date/time selection UI by allowing bold “Last time” values for DateTimeRangePicker component.

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langsmith-0.13.2

• Fixed content-type validation for dataset uploads to improve data handling.
• Improved the new annotation queue page with a pretty JSON editor and message list editor.
• Enabled better handling of retriable ingest errors on QueueRunPayloads.
• Fixed Cron Trigger updates in the Agent Builder UI.
• Added support for Redis Cluster, enhancing scalability for self-hosted setups.
• Fixed OAuth account takeover vulnerability to enhance security.
• Improved rendering of raw output in the playground.
• Added new inline UX filters and a View Dropdown component for enhanced user interaction.
• Increased line-height on XS Text variant to prevent clipping issues in the frontend.

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langsmith-0.13.1

• Added webhook publishing feature in Agent Builder
• Added support for Anthropic models via Vertex AI in the playground
• Added “Use Responses API” toggle for OpenAI models in the playground
• Added Slack reauth banner when reconnection is needed
• Added edit file tool diffs for better visibility of changes
• Improved partition management for dropping old tables
• Fixed self-hosted issues with Agent Builder from QA
• Fixed mode switcher visibility when Agent Builder is disabled on self-hosted
• Fixed various Agent Builder navigation and UI issues

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langsmith-0.13.0

• Added support for Agent Builder in self-hosted deployments
• Added configurable trace TTL for long-lived traces
• Added ability to conditionally enable OAuth tools and triggers
• Added sample application creation during onboarding
• Fixed feedback pagination and auto-pagination bugs
• Fixed trace drawer skeleton not appearing immediately

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langsmith-0.12.37

• Added agent_builder_enabled feature flag for self-hosted deployments
• Added ability to delete files in the memories folder
• Added secrets import flow in workspace settings
• Improved streaming tree performance
• Fixed scroll behavior in trace tree
• Fixed unicode truncation issues in trace display
• Fixed onboarding screen showing when runs exist
• Fixed various Agent Builder sidebar and navigation issues
• Fixed OAuth callback URL enforcement to require HTTPS

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langsmith-0.12.36

• Added support for custom MCP servers with OAuth in Agent Builder
• Added ability to view and edit memory files in Agent Builder
• Added support for attachments in the frontend
• Improved streaming tree performance in trace viewer
• Fixed scroll behavior in trace tree
• Fixed unicode truncation issues in trace display
• Fixed onboarding screen showing incorrectly when runs exist
• Increased maximum automation rules per workspace to 200

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langsmith-0.12.35

• Added per-bar highlighting for feedback charts in experiments
• Added Agent Builder activity feed
• Changed experiment chip to hover card for better usability
• Fixed agents appearing in random sidebar positions
• Fixed tool modal nesting issue in playground
• Fixed diff mode fallback on comparison page
• Fixed race condition in OAuth authentication requests

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langsmith-0.12.34

• Added Redis IAM authentication support for GCP and Azure
• Added self-serve audit logs in OCSF format
• Added hide column option to experiment outputs header
• Added message_user tool to the tool server
• Improved trace tree loading speed
• Allowed basic auth installations to disable invites via API
• Fixed tenant ID handling in navigation
• Fixed scrolling in Agent Builder templates view
• Fixed Gmail account connection limit tooltip
• Fixed user view preference persistence on page load
• Fixed tab wrapping in UI
• Made feedback charts visible by default
• Made SCIM group name matching case-insensitive

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langsmith-0.12.33

• Security fix: fixed Studio vulnerability to malicious baseUrl param by requiring user-defined allowed origins
• Allow enabling invites alongside JIT provisioning for SSO (OAuth with Client Secret mode only)
• Added self-serve audit logs for administrative actions (Private Preview)

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langsmith-0.12.32

• Added IAM connection support for PostgreSQL (AWS only).
• Added GPT-5.2 model support to the playground.
• Added support for setting memory limits on executor pods.

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langsmith-0.12.31

• Improved error messages for basic authentication misconfiguration.
• Added organization operator role support.
• Fixed issues with streaming datasets endpoint.

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langsmith-0.12.30

• Fixed API Docs button not redirecting to the correct URL when using a sub path.
• Performance improvements and bug fixes.

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langsmith-0.12.29

• Added mTLS (mutual TLS) support for ClickHouse connections to enhance security for database communication.

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langsmith-0.12.28

• Added mTLS (mutual TLS) support for PostgreSQL connections to enhance security for database communication.
• Added mTLS support for ClickHouse clients.
• Fixed Agent Builder onboarding and side navigation visibility when disabled in self-hosted deployments.

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langsmith-0.12.27

• Added mTLS (mutual TLS) support for Redis connections to enhance security.
• Added support for empty trigger server configuration in self-hosted deployments.
• Improved incident banner styling and content.

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langsmith-0.12.25

• Enabled Agent Builder UI feature flag for self-hosted deployments.
• Added Redis Cluster support for improved scalability and high availability.

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langsmith-0.12.24

• Added dequeue timeouts to all SAQ (Simple Async Queue) queues to improve reliability.
• Performance improvements and bug fixes.

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langsmith-0.12.22

• Added Claude Opus 4.5 model support to the playground.
• Updated dataplane operator version.
• Added LANGCHAIN_ENDPOINT environment variable when basePath is configured.

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langsmith-0.12.21

• Added explicit revisionHistoryLimit configuration for operator deployment template.

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langsmith-0.12.20

• Added support for self-hosted customers to opt into the pairwise annotation queue feature.
• Updated operator to version 0.1.21 in LangSmith and data plane charts.

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langsmith-0.12.19

• Fixed playground environment configuration to use correct default settings.

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langsmith-0.12.18

• Internal updates and maintenance.