LangGraph Server Changelog¶
LangGraph Server is an API platform for creating and managing agent-based applications. It provides built-in persistence, a task queue, and supports deploying, configuring, and running assistants (agentic workflows) at scale. This changelog documents all notable updates, features, and fixes to LangGraph Server releases.
v0.2.85 (2025-07-10)¶
- Added support for the
on_disconnect
field toruns/wait
and included disconnect logs for better debugging.
v0.2.84 (2025-07-09)¶
- Removed unnecessary status updates to streamline thread handling and updated version to 0.2.84.
v0.2.83 (2025-07-09)¶
- Reduced the default time-to-live for resumable streams to 2 minutes.
- Enhanced data submission logic to send data to both Beacon and LangSmith instance based on license configuration.
- Enabled submission of self-hosted data to a Langsmith instance when the endpoint is configured.
v0.2.82 (2025-07-03)¶
- Addressed a race condition in background runs by implementing a lock using join, ensuring reliable execution across CTEs.
v0.2.81 (2025-07-03)¶
- Optimized run streams by reducing initial wait time to improve responsiveness for older or non-existent runs.
v0.2.80 (2025-07-03)¶
- Corrected parameter passing in the
logger.ainfo()
API call to resolve a TypeError.
v0.2.79 (2025-07-02)¶
- Fixed a JsonDecodeError in checkpointing with remote graph by correcting JSON serialization to handle trailing slashes properly.
- Introduced a configuration flag to disable webhooks globally across all routes.
v0.2.78 (2025-07-02)¶
- Added timeout retries to webhook calls to improve reliability.
- Added HTTP request metrics, including a request count and latency histogram, for enhanced monitoring capabilities.
v0.2.77 (2025-07-02)¶
- Added HTTP metrics to improve performance monitoring.
- Changed the Redis cache delimiter to reduce conflicts with subgraph message names and updated caching behavior.
v0.2.76 (2025-07-01)¶
- Updated Redis cache delimiter to prevent conflicts with subgraph messages.
v0.2.74 (2025-06-30)¶
- Scheduled webhooks in an isolated loop to ensure thread-safe operations and prevent errors with PYTHONASYNCIODEBUG=1.
v0.2.73 (2025-06-27)¶
- Fixed an infinite frame loop issue and removed the dict_parser due to structlog's unexpected behavior.
- Throw a 409 error on deadlock occurrence during run cancellations to handle lock conflicts gracefully.
v0.2.72 (2025-06-27)¶
- Ensured compatibility with future langgraph versions.
- Implemented a 409 response status to handle deadlock issues during cancellation.
v0.2.71 (2025-06-26)¶
- Improved logging for better clarity and detail regarding log types.
v0.2.70 (2025-06-26)¶
- Improved error handling to better distinguish and log TimeoutErrors caused by users from internal run timeouts.
v0.2.69 (2025-06-26)¶
- Added sorting and pagination to the crons API and updated schema definitions for improved accuracy.
v0.2.66 (2025-06-26)¶
- Fixed a 404 error when creating multiple runs with the same thread_id using
on_not_exist="create"
.
v0.2.65 (2025-06-25)¶
- Ensured that only fields from
assistant_versions
are returned when necessary. - Ensured consistent data types for in-memory and PostgreSQL users, improving internal authentication handling.
v0.2.64 (2025-06-24)¶
- Added descriptions to version entries for better clarity.
v0.2.62 (2025-06-23)¶
- Improved user handling for custom authentication in the JS Studio.
- Added Prometheus-format run statistics to the metrics endpoint for better monitoring.
- Added run statistics in Prometheus format to the metrics endpoint.
v0.2.61 (2025-06-20)¶
- Set a maximum idle time for Redis connections to prevent unnecessary open connections.
v0.2.60 (2025-06-20)¶
- Enhanced error logging to include traceback details for dictionary operations.
- Added a
/metrics
endpoint to expose queue worker metrics for monitoring.
v0.2.57 (2025-06-18)¶
- Removed CancelledError from retriable exceptions to allow local interrupts while maintaining retriability for workers.
- Introduced middleware to gracefully shut down the server after completing in-flight requests upon receiving a SIGINT.
- Reduced metadata stored in checkpoint to only include necessary information.
- Improved error handling in join runs to return error details when present.
v0.2.56 (2025-06-17)¶
- Improved application stability by adding a handler for SIGTERM signals.
v0.2.55 (2025-06-17)¶
- Improved the handling of cancellations in the queue entrypoint.
- Improved cancellation handling in the queue entry point.
v0.2.54 (2025-06-16)¶
- Enhanced error message for LuaLock timeout during license validation.
- Fixed the $contains filter in custom auth by requiring an explicit ::text cast and updated tests accordingly.
- Ensured project and tenant IDs are formatted as UUIDs for consistency.
v0.2.53 (2025-06-13)¶
- Resolved a timing issue to ensure the queue starts only after the graph is registered.
- Improved performance by setting thread and run status in a single query and enhanced error handling during checkpoint writes.
- Reduced the default background grace period to 3 minutes.
v0.2.52 (2025-06-12)¶
- Now logging expected graphs when one is omitted to improve traceability.
- Implemented a time-to-live (TTL) feature for resumable streams.
- Improved query efficiency and consistency by adding a unique index and optimizing row locking.
v0.2.51 (2025-06-12)¶
- Handled
CancelledError
by marking tasks as ready to retry, improving error management in worker processes. - Added LG API version and request ID to metadata and logs for better tracking.
- Added LG API version and request ID to metadata and logs to improve traceability.
- Improved database performance by creating indexes concurrently.
- Ensured postgres write is committed only after the Redis running marker is set to prevent race conditions.
- Enhanced query efficiency and reliability by adding a unique index on thread_id/running, optimizing row locks, and ensuring deterministic run selection.
- Resolved a race condition by ensuring Postgres updates only occur after the Redis running marker is set.
v0.2.46 (2025-06-07)¶
- Introduced a new connection for each operation while preserving transaction characteristics in Threads state
update()
andbulk()
commands.
v0.2.45 (2025-06-05)¶
- Enhanced streaming feature by incorporating tracing contexts.
- Removed an unnecessary query from the Crons.search function.
- Resolved connection reuse issue when scheduling next run for multiple cron jobs.
- Removed an unnecessary query in the Crons.search function to improve efficiency.
- Resolved an issue with scheduling the next cron run by improving connection reuse.
v0.2.44 (2025-06-04)¶
- Enhanced the worker logic to exit the pipeline before continuing when the Redis message limit is reached.
- Introduced a ceiling for Redis message size with an option to skip messages larger than 128 MB for improved performance.
- Ensured the pipeline always closes properly to prevent resource leaks.
v0.2.43 (2025-06-04)¶
- Improved performance by omitting logs in metadata calls and ensuring output schema compliance in value streaming.
- Ensured the connection is properly closed after use.
- Aligned output format to strictly adhere to the specified schema.
- Stopped sending internal logs in metadata requests to improve privacy.
v0.2.42 (2025-06-04)¶
- Added timestamps to track the start and end of a request's run.
- Added tracer information to the configuration settings.
- Added support for streaming with tracing contexts.
v0.2.41 (2025-06-03)¶
- Added locking mechanism to prevent errors in pipelined executions.