This release brings alerting, UI‐driven experiment workflows, end-to-end OpenTelemetry support and a host of new capabilities alongside several bug fixes. Under the hood it also rolls out beta Self‑Hosted LangGraph Cloud Control Plane and full‑text search, plus query performance and ingestion optimizations.

Follow the upgrade instructions here to get access to everything https://docs.smith.langchain.com/self_hosting/upgrades

Breaking Changes

• As of v10, LangSmith will no longer offer the none auth mode by default. This will be fully deleted in v11. If using none auth mode you will need to follow the steps to setup basic auth: https://docs.smith.langchain.com/self_hosting/configuration/basic_auth#migrating-from-none-auth

• Removal of /tenants endpoints. tenants endpoints have been deprecated since v7 and will now be removed. You will need to swap to the /workspaces versions of these endpoints

Reminder:

• Upgrade to new lcl_ licenses if you haven’t done so already.

New Features since v0.9.0

• Catch production failures early with Alerts

• Run interactive evals with the LangSmith Playground

• Improved experience for running evaluators in the LangSmith UI

• End-to-end native OpenTelemetry support for LangSmith SDK

• Group LangSmith experiments by metadata to get valuable insights

• Saved workspace secrets in the LangSmith Playground

• 🛝 LangSmith Playground integration with LangGraph Studio

• New LangSmith experiments view for result analysis

• Waterfall graphs to spot latency bottlenecks

• Several small bug fixes/improvements

Infrastructure Changes

• Self-Hosted LangGraph Cloud Control Plane (Beta). If interested please reach out to your sales rep for more information. Read more here: https://langchain-ai.github.io/langgraph/concepts/langgraph_self_hosted_control_plane/

• Experimental Full-Text Search (Beta). Enhanced filtering and search support aimed at hybrid self-hosted deployments with managed Clickhouse. Experimental and in active development. Please reach out to the LangChain team if interested in testing.

• Several query performance improvements and ingestion optimizations. Run Ingestion has moved to being handled by the more performant platform-backend service.

Admin Changes

• No additional admin changes in this release.