Documentation Index
Fetch the complete documentation index at: https://langchain-5e9cc07a-preview-opensw-1778077382-4e488a3.mintlify.app/llms.txt
Use this file to discover all available pages before exploring further.
Subscribe: Our changelog includes an RSS feed that can integrate with Slack, email, Discord bots like Readybot or RSS Feeds to Discord Bot, and other subscription tools.
langsmith-0.15.0-rc.4
- Added support for new UI features including a redesigned evaluator settings section and issue board interface.
- Improved performance and UI responsiveness across various components including the evaluator interfaces and tracing projects.
- Fixed several UI bugs affecting the display and behavior of feedback, evaluator tabs, tracing identifiers, amongst others.
- Added new integrations including support for Google workspace tools and Anthropic APIs within the agent builder.
- Enhanced security and authentication measures with features like audit logging for sensitive data and improved SSO login functionality.
- Introduced new API endpoints to support features like org-based exclusion for time window enforcement and managing self-hosted licenses.
- Enabled performance improvements through optimizations in session syncing and experiments sync processes.
- Added functionality to track consumption and spending within fleet projects, including an interactive usage dashboard with CSV export capabilities.
- Released updates to allow custom, tenant-specific API keys and OAuth flows for platform integrations and execution contexts.
langsmith-0.15.0-rc.4.tgzlangsmith-0.14.5
- Internal improvements and maintenance updates
langsmith-0.14.5.tgzlangsmith-0.15.0-rc.3
- Internal improvements and maintenance updates
langsmith-0.15.0-rc.3.tgzlangsmith-0.14.4
- Fixed an issue in the playground where the environment was being polluted by an older version of a dependency.
langsmith-0.14.4.tgzlangsmith-0.14.3
- Internal improvements and maintenance updates
langsmith-0.14.3.tgzlangsmith-0.15.0-rc.2
- Improved the ‘Enabled’ column in the automations table to prevent header truncation.
- Fixed the “polly” button icon from sticking to the cursor on click.
- Made the MCP server filter dropdown scrollable in the fleet.
- Added sorting to the evaluator’s table with ‘created’ and ‘updated at’ fields.
- Implemented fallback to LANGSMITH_AUTH_ENDPOINT for workspace in “polly”.
- Fixed file creation from clearing the active interrupt state in the fleet.
- Added URL allowlist enforcement for JWT injection in “polly”.
- Added user cost table and agent/user toggle in the fleet.
- Added new fleet-admin:read permission.
- Improved loading performance by removing unnecessary joins from session stats queries.
- Added analytics tracking for template/card selection in the frontend.
- Added timestamps and improved layout for issue board UI.
- Fixed bug causing the evaluator reuse playground to malfunction.
- Added PostgreSQL mTLS support for migrations.
- Added support for mCP servers with composable databases.
- Enhanced security by handling non-SSO login for users with multiple SSO provider records.
- Made evaluator source-run link resilient against invalid IDs.
- Added evaluator details page UX improvements.
- Added mobile-friendly login and installable PWA support.
- Improved overall UX in the evaluator tab with a carousel of suggested evaluators.
- Enabled audit logging for sensitive data access endpoints.
- Added session/dataset activity tracking in Redis for run rules to SmithDB.
- Added tracing project and usage dashboard for fleet projects.
- Added “create agent manually” button to the navbar in the Agent Builder section.
- Fixed rendering issue of tool calls in message view.
- Improved session sync performance to prevent idle sessions.
- Added new model support (Opus 4.7, GLM5, and minimax 2.5) for agent evaluation.
- Improved evaluator fork and usage UX in the frontend.
- Reduced unnecessary re-renders in the playground to improve performance.
- Enabled ‘wrap experiment quickstart’ with ComparisonStoreProvider to address UI bugs.
- Introduced new endpoint to update self-hosted licenses.
- Optimized idle session processing with performance improvements.
- Added audit logging for all remaining Go write endpoints.
- Enhanced “byoc” support with new verification mechanisms and separation of Python service routes.
langsmith-0.15.0-rc.2.tgzlangsmith-0.15.0-rc.1
- Fixed truncation issue by widening the ‘Enabled’ column in the automations table for better header visibility.
- Updated details view header for improved user experience.
- Improved performance by removing dead run_stats_facets join from session stats queries.
- Fixed MCP server filter dropdown to make it scrollable.
- Added ‘user cost’ table and toggle for agent/user view in the fleet.
- Enhanced security by adding URL allowlist enforcement for JWT injection.
- Added ability to sort evaluators by creation and update time in the backend.
- Added ‘Feedback Key’ filtering in the evaluators table for more precise searches.
- Showed back button on the full-page trace view to enhance navigation.
- Fixed audit-logs and various performance improvements for lower latency.
- Enhanced UI by showing ‘Feedback Key’ in evaluator column dropdown.
- Added session insights, views, metadata, and dashboard endpoints to improve data accessibility.
- Fixed file creation issues to prevent active interrupt state clearance.
- Provided async support for agents in the fleet to improve reliability.
- Fixed issues with agent cloning that previously caused flow issues.
- Added spend limit enforcement and the ability to track usage, enhancing cost management features.
- Made more efficient use of resources with new skill memory-store mirror updates in fleets.
- Improved evaluator reuse UX for users with better management of evaluator actions on issue generation.
- Enhanced security features by preventing sub-agents from triggering unauthorized actions.
- Optimized memory and resource management in the agent builder chat.
- Improved evaluator trace detail navigation by preserving search model in URLs.
- Upgraded per-environment favicon colors for clarity in staging and dev environments.
- Performance improvements in session sync reducing resource usage.
- Added default agent name support in usage dashboard for clarity in report generation.
- Made UI improvements to evaluator details for a smoother experience.
- Enabled auto-wake and auto-stop for Sandbox environments to save resources.
- Integrated tracing tool functionality in issue creation for better context and reliability.
- Added “create agent manually” button to navigation for easier agent management.
- Enhanced memory management tools UI for better approval process visualization.
- Fixed tool usage table and improved its performance for a better UX.
- Enabled auditing for sensitive data access endpoints for enhanced security compliance.
- Improved tracing project name display in usage dashboard for better project clarity.
- Introduced keyboard shortcuts in the editor page for rapid interaction.
- Set default MSP cron schedule as standard to reduce manual setup effort.
- Added integration user flow with prompt messages for smooth operation and understanding.
- Fixed default tracing project selection to Fleet to prevent inconsistencies.
langsmith-0.15.0-rc.1.tgzlangsmith-0.14.2
- Internal improvements and maintenance updates
langsmith-0.14.2.tgzlangsmith-0.14.1
- Fixed an issue where the system looked back further to determine Redis eligibility, improving reliability in self-hosted environments.
langsmith-0.14.1.tgzlangsmith-0.14.0
LangSmith Self-Hosted v0.14 brings Polly (our AI assistant for traces and runs) to self-hosted, takes ABAC and audit logs GA (on by default), and enables the LLM Auth Proxy by default with URL allowlisting and richer JWT claims. Admins get unified model configurations shared across Agent Builder, Polly, Insights, Playground, and Evaluators, and fine-grained Prompt Owners for locking down who can promote or delete individual prompts. Evaluators gain multi-modal support and workspaces can now set cost alerts on tracing projects. Playground model support expands (Anthropic via Vertex AI, custom Azure models, Bedrock inference profiles, Gemini 3.1 Pro, GPT-5.3 / 5.4, Baseten + GLM-5), and new agent tools and triggers land for Google Sheets & Docs, Outlook, Teams, and Salesforce SOQL. On the infrastructure side, v0.14 adds GCS Workload Identity support for blob storage, Valkey as a drop-in Redis replacement, and a pre-upgrade migration hook for safer rollouts.Follow the upgrade instructions to get access to everything. To book time with LangChain support for your upgrade, contactsupport@langchain.dev.Breaking changes
- Fixed an issue where
host-backendwasn’t picking upcommonEnv. This may result in duplicate environment variables that need to be removed.
Infrastructure changes
- Migrations now run as a
Pre-upgradehook prior to image versions rolling out. This will prevent issues when migrations fail. - GCS Workload Identity support — authenticate to GCS blob storage using cloud-native workload identity instead of long-lived credentials.
- Valkey support — Valkey can now be used as a drop-in replacement for Redis.
New features
- Polly on self-hosted — our AI assistant for understanding traces, runs, and evaluator feedback is now available in self-hosted.
- ABAC and audit logs GA — Attribute-Based Access Control and audit logs are enabled by default for self-hosted deployments.
- LLM Auth Proxy on by default — URL allowlist prevents credential forwarding to unintended hosts, and JWTs now carry
organization_nameandworkspace_nameclaims. - Unified model configurations — Agent Builder, Polly, Insights, Playground, and Evaluators now share a single set of model configs, with workspace-admin controls over model access across all AI features.
- Prompt Owners — designate a specific group of users with fine-grained permission to promote or delete individual prompts, without granting broader org access.
- Multi-modal evaluators — pass attachments and base64 content (images, audio, PDFs) directly into evaluators.
- Cost alerts on tracing projects — set alerts on tracing project-level costs alongside existing LangSmith alerts.
- Expanded playground model support — Anthropic via Vertex AI, custom Azure models, Bedrock inference profiles and configurable base URLs, Gemini 3.1 Pro, GPT-5.3 / 5.4 (now default), and Baseten + GLM-5.
- New agent tools and triggers — Google Sheets and Docs, Outlook mail and calendar, Microsoft Teams, Salesforce SOQL, Gmail OAuth v2 with refresh tokens, and an Outlook Trigger.
- Insights enhancements — scheduled Insights reports, categories trending over time, full feedback comments in analysis, and a lower minimum job interval (6h → 1h).
- Annotation and review upgrades — required reviewers per queue, pairwise queues that honor
reviewer_access_mode, an “Assigned to me” filter, per-annotator CSV export, and bulk table actions. - Prompt Hub and tool registry — commit tag search, model select in template creation, a workspace-scoped tool registry API, and a private registry UI.
- Evaluator workflow improvements — prebuilt LLM evaluators use strict structured outputs by default, evaluators support tagging and reuse, retries no longer lose scores, and a new API runs playground experiments programmatically.
- Custom iframe output renderer — drag-to-resize HTML chart outputs in experiments and trace views.
- Thread and inbox UX — auto-generated thread titles, redesigned run details in threads, session-level feedback stats, keyboard shortcuts, and filtering out internal helper threads.
Admin changes
- Granular usage reporting — granular billable usage APIs that allow you to retrieve detailed trace usage data broken down by workspace, project, user, or API key.
langsmith-0.13.43
- Internal improvements and maintenance updates
langsmith-0.13.43.tgzlangsmith-0.13.42
- Internal improvements and maintenance updates
langsmith-0.13.42.tgzlangsmith-0.13.41
- Internal improvements and maintenance updates
langsmith-0.13.41.tgzlangsmith-0.13.40
- Internal improvements and maintenance updates
langsmith-0.13.40.tgzlangsmith-0.13.39
- Internal improvements and maintenance updates
langsmith-0.13.39.tgzlangsmith-0.13.38
- Internal improvements and maintenance updates
langsmith-0.13.38.tgzlangsmith-0.13.37
- Internal improvements and maintenance updates
langsmith-0.13.37.tgzlangsmith-0.13.36
- Internal improvements and maintenance updates
langsmith-0.13.36.tgzlangsmith-0.13.35
- Internal improvements and maintenance updates
langsmith-0.13.35.tgzlangsmith-0.13.34
- Internal improvements and maintenance updates
langsmith-0.13.34.tgzlangsmith-0.13.33
- Internal improvements and maintenance updates
langsmith-0.13.33.tgzlangsmith-0.13.32
- Internal improvements and maintenance updates
langsmith-0.13.32.tgzlangsmith-0.13.31
- Internal improvements and maintenance updates
langsmith-0.13.31.tgzlangsmith-0.13.30
- Internal improvements and maintenance updates
langsmith-0.13.30.tgzlangsmith-0.13.29
- Internal improvements and maintenance updates
langsmith-0.13.29.tgzlangsmith-0.13.28
- Internal improvements and maintenance updates
langsmith-0.13.28.tgzlangsmith-0.13.27
- Internal improvements and maintenance updates
langsmith-0.13.27.tgzlangsmith-0.13.26
- Internal improvements and maintenance updates
langsmith-0.13.26.tgzlangsmith-0.13.25
- Internal improvements and maintenance updates
langsmith-0.13.25.tgzlangsmith-0.13.24
- Internal improvements and maintenance updates
langsmith-0.13.24.tgzlangsmith-0.13.23
- Internal improvements and maintenance updates
langsmith-0.13.23.tgzlangsmith-0.13.21
- Internal improvements and maintenance updates
langsmith-0.13.21.tgzlangsmith-0.13.20
- Internal improvements and maintenance updates
langsmith-0.13.20.tgzlangsmith-0.13.19
- Internal improvements and maintenance updates
langsmith-0.13.19.tgzlangsmith-0.13.18
- Internal improvements and maintenance updates
langsmith-0.13.18.tgzlangsmith-0.13.17
- Internal improvements and maintenance updates
langsmith-0.13.17.tgzlangsmith-0.13.16
- Internal improvements and maintenance updates
langsmith-0.13.16.tgzlangsmith-0.13.15
- Internal improvements and maintenance updates
langsmith-0.13.15.tgzlangsmith-0.13.14
- Internal improvements and maintenance updates
langsmith-0.13.14.tgzlangsmith-0.13.13
- Internal improvements and maintenance updates
langsmith-0.13.13.tgzlangsmith-0.13.12
- Internal improvements and maintenance updates
langsmith-0.13.12.tgzlangsmith-0.13.11
- Internal improvements and maintenance updates
langsmith-0.13.11.tgzlangsmith-0.13.10
- Internal improvements and maintenance updates
langsmith-0.13.10.tgzlangsmith-0.13.9
- Internal improvements and maintenance updates
langsmith-0.13.9.tgzlangsmith-0.13.7
- Internal improvements and maintenance updates
langsmith-0.13.7.tgzlangsmith-0.13.6
- Internal improvements and maintenance updates
langsmith-0.13.6.tgzlangsmith-0.13.5
- Internal improvements and maintenance updates
langsmith-0.13.5.tgzlangsmith-0.13.4
- Internal improvements and maintenance updates
langsmith-0.13.4.tgzlangsmith-0.13.3
- Internal improvements and maintenance updates
langsmith-0.13.3.tgzlangsmith-0.13.2
- Internal improvements and maintenance updates
langsmith-0.13.2.tgzlangsmith-0.13.1
- Internal improvements and maintenance updates
langsmith-0.13.1.tgzlangsmith-0.13.0
- Internal improvements and maintenance updates
langsmith-0.13.0.tgzlangsmith-0.12.37
- Internal improvements and maintenance updates
langsmith-0.12.37.tgzlangsmith-0.12.36
- Internal improvements and maintenance updates
langsmith-0.12.36.tgzlangsmith-0.12.35
- Internal improvements and maintenance updates
langsmith-0.12.35.tgzlangsmith-0.12.34
- Internal improvements and maintenance updates
langsmith-0.12.34.tgzlangsmith-0.12.33
- Internal improvements and maintenance updates
langsmith-0.12.33.tgzlangsmith-0.12.32
- Internal improvements and maintenance updates
langsmith-0.12.32.tgzlangsmith-0.12.31
- Internal improvements and maintenance updates
langsmith-0.12.31.tgzlangsmith-0.12.30
- Internal improvements and maintenance updates
langsmith-0.12.30.tgzlangsmith-0.12.29
- Internal improvements and maintenance updates
langsmith-0.12.29.tgzlangsmith-0.12.28
- Internal improvements and maintenance updates
langsmith-0.12.28.tgzlangsmith-0.12.27
- Internal improvements and maintenance updates
langsmith-0.12.27.tgzlangsmith-0.8.30
- Internal improvements and maintenance updates
langsmith-0.8.30.tgzlangsmith-0.12.25
- Internal improvements and maintenance updates
langsmith-0.12.25.tgzlangsmith-0.12.24
- Internal improvements and maintenance updates
langsmith-0.12.24.tgzlangsmith-0.12.23
- Internal improvements and maintenance updates
langsmith-0.12.23.tgzlangsmith-0.12.22
- Internal improvements and maintenance updates
langsmith-0.12.22.tgzlangsmith-0.12.21
- Internal improvements and maintenance updates
langsmith-0.12.21.tgzlangsmith-0.12.20
- Internal improvements and maintenance updates
langsmith-0.12.20.tgzlangsmith-0.12.19
- Internal improvements and maintenance updates
langsmith-0.12.19.tgzlangsmith-0.12.18
- Internal improvements and maintenance updates
langsmith-0.12.18.tgzlangsmith-0.12.17
- Internal improvements and maintenance updates
langsmith-0.12.17.tgzlangsmith-0.12.16
- Internal improvements and maintenance updates
langsmith-0.12.16.tgzlangsmith-0.12.15
- Internal improvements and maintenance updates
langsmith-0.12.15.tgzlangsmith-0.12.14
- Internal improvements and maintenance updates
langsmith-0.12.14.tgzlangsmith-0.12.13
- Internal improvements and maintenance updates
langsmith-0.12.13.tgzlangsmith-0.12.12
- Internal improvements and maintenance updates
langsmith-0.12.12.tgzAdditional Helm chart releases are available in the
langchain-ai/helm GitHub repository.Connect these docs to Claude, VSCode, and more via MCP for real-time answers.