Sponsor of the Day:
Jerkmate
https://changelog.langchain.com/announcements/track-costs-across-your-entire-agent-stack
LangChain - Changelog | Track costs across your entire agent stack
LangSmith now gives you a unified view of costs across your full agent workflow, not just LLM calls. Submit custom cost metadata for any run, whether that's...
langchain changelogcosts acrossagent stacktrackentire
https://changelog.langchain.com/announcements/agent-builder-chat-file-uploads-and-tool-registry
LangChain - Changelog | Agent Builder: chat, file uploads, and tool
We built Agent Builder around a simple idea: working with an agent should feel like working with a teammate. There's now a central Chat agent with access to...
langchain changelogagent builderfile uploadschattool
https://changelog.langchain.com/?date=2024-05-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2024-01-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2024-09-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2024-09-01&page=2
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2025-06-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2025-09-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2024-04-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2023-12-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?page=15
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/announcements/deep-agents-v0-4
LangChain - Changelog | Deep Agents v0.4
deepagents v0.4 ships pluggable sandbox support, smarter conversation history summarization, and Responses API as the default for OpenAI models. Agents can...
langchain changelogdeep agentsv0 4
https://changelog.langchain.com/?page=4
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?show_older=1
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2025-08-01&page=4
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?page=5
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/announcements/langsmith-self-hosted-v0-13
LangChain - Changelog | LangSmith Self-Hosted v0.13
This self-hosted release expands feature parity with LangSmith Cloud while improving performance, security, and operational control. It brings Insights , the...
langchain changelogself hostedv0 13langsmith
https://changelog.langchain.com/?date=2025-02-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/announcements/week-of-2-5-langchain-release-notes
LangChain - Changelog | 🚀 LangSmith is GA! Plus, better monitoring in
LangSmith is now GA LangSmith is now generally available - no more waitlist! Sign up for free here . New in LangSmith
langchain changeloglangsmithgaplusbetter
https://changelog.langchain.com/announcements/scheduled-reports-for-insights-agent
LangChain - Changelog | Scheduled reports for Insights Agent
The LangSmith Insights Agent now runs on your schedule, no manual triggers required. Set a recurring cadence (daily, weekly, or a custom cron expression) and...
langchain changelogscheduled reportsinsights agent
https://changelog.langchain.com/?date=2025-03-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2024-10-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2024-06-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2024-12-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/announcements/end-to-end-native-opentelemetry-support-for-langsmith-sdk
LangChain - Changelog | End-to-end native OpenTelemetry support for
Introducing End-to-End OpenTelemetry Support in LangSmith LangSmith now supports full end-to-end OpenTelemetry (OTel) for LangChain and LangGraph...
langchain changelogopentelemetry supportendnative
https://changelog.langchain.com/?date=2025-10-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2024-08-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/announcements/pairwise-annotation-queues-for-comparing-agent-outputs
LangChain - Changelog | Pairwise annotation queues for comparing agent
Pairwise Annotation Queues in LangSmith are a fast, structured way to compare two agent outputs side-by-side and pick a winner. Scoring subjective tasks is...
langchain changelogpairwiseannotationqueuescomparing
https://changelog.langchain.com/?date=2023-11-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2024-11-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2025-09-01&page=1
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?page=2
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/announcements/monthly-usage-charts-for-easy-tracking-in-langsmith
LangChain - Changelog | Monthly usage charts for easy tracking in
We’ve rolled out monthly usage charts for SaaS customers in LangSmith. You can now track all billable metrics (as defined in Metronome) in one place on the...
langchain changelogmonthlyusagechartseasy
https://changelog.langchain.com/?date=2025-05-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2025-07-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2025-09-01&page=4
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2023-10-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2025-08-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/announcements/langsmith-fetch-debug-agents-from-your-terminal
LangChain - Changelog | LangSmith Fetch: Debug agents from your
We've launched LangSmith Fetch — a CLI tool that brings full LangSmith trace access directly into your terminal, coding environment, or IDE. If you build...
langchain changeloglangsmithfetchdebugagents
https://changelog.langchain.com/?date=2024-02-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/?date=2025-12-01
LangChain - Changelog
Check out the latest product updates on the LangChain LaunchNotes page.
langchain changelog
https://changelog.langchain.com/announcements/view-deployment-metrics-in-langgraph-platform
LangChain - Changelog | View agent deployment metrics in LangSmith
langchain changelogagent deploymentviewmetricslangsmith