Issues

asyncio.iscoroutinefunction usage in checkpoint store embed is deprecated in Python 3.14

langchain-ai/langgraph#9541 · opened

on Nov 1, 2026

sdk-py: a stream that drops before its first event reconnects without limit

langchain-ai/langgraph#9537 · opened

on Nov 1, 2026

`AsyncBatchedBaseStore` skips the `str(key)` coercion `BaseStore` applies, so `AsyncSqliteStore.aget(ns, 42)` misses an item written with `aput(ns, 42, ...)`

langchain-ai/langgraph#9521 · opened

on Oct 31, 2026

`task(fn, name=...)` renames the user function in place, so named tasks sharing a function all run under the last name

langchain-ai/langgraph#9520 · opened

on Oct 31, 2026

`@entrypoint` ignores postponed annotations (`from future import annotations`): schemas fail and `entrypoint.final` is not unwrapped

langchain-ai/langgraph#9518 · opened

on Oct 31, 2026

1

checkpoint: PersistentDict.sync masks serialization errors and leaves temporary files on Windows

Bug

langchain-ai/langgraph#9517 · opened

on Oct 31, 2026

Set of tuples in state is restored as a list from a checkpoint

langchain-ai/langgraph#9516 · opened

on Oct 31, 2026

sdk-py: get_client(url=None) accepts timeout= but never applies it — in-process calls cannot be bounded

langchain-ai/langgraph#9500 · opened

on Oct 30, 2026

2

sdk-py: timeout= does not bound runs.stream() — server SSE heartbeats reset the read timeout forever

langchain-ai/langgraph#9499 · opened

on Oct 30, 2026

1

add error when specifying recursionLimit inside the configurable key value

langchain-ai/langgraph#9498 · opened

on Oct 30, 2026

`RetryPolicy(max_attempts=...)` never gives up on a node that calls `interrupt()` before it fails: every resume starts counting attempts again

Bug

langchain-ai/langgraph#9493 · opened

on Oct 30, 2026

2

A Document in ToolMessage.artifact comes back from a checkpoint as a dict

Bug

langchain-ai/langgraph#9492 · opened

on Oct 30, 2026

5

Time travel to an interrupt reapplies the Command(update=...) of the old branch

Bug

langchain-ai/langgraph#9491 · opened

on Oct 30, 2026

4

Enum, UUID and date dict keys in state lose their type in a checkpoint

Bug

langchain-ai/langgraph#9490 · opened

on Oct 30, 2026

2

A read expires a PostgresStore item at once when its TTL is 30 seconds or less

Bug

langchain-ai/langgraph#9488 · opened

on Oct 30, 2026

4

update_state on the head of a failed run drops a finished sibling's writes

langchain-ai/langgraph#9487 · opened

on Oct 30, 2026

3

sdk-py: full tool delta buffer raises QueueFull on completion and leaves deltas hanging

langchain-ai/langgraph#9485 · opened

on Oct 29, 2026

3

With a `TimeoutPolicy` on a node and `step_timeout` on the graph it runs, resuming after a sibling's failure makes that graph return before its `Send` fan-out ran

Bug

langchain-ai/langgraph#9484 · opened

on Oct 29, 2026

3

JsonPlusSerializer: pydantic RootModel state loses its type on checkpoint round trip and breaks interrupt/resume

langchain-ai/langgraph#9480 · opened

on Oct 28, 2026

4

A subgraph node with a `RetryPolicy` asks again after a failed attempt, but the resumed run continues the failed attempt and discards the new answer

Bug

langchain-ai/langgraph#9478 · opened

on Oct 28, 2026

2

Agent Server: a custom http.app empties the built-in operations in /openapi.json

langchain-ai/langgraph#9476 · opened

on Oct 28, 2026

1

Functional API: resume re-runs a `@task` whose exception the entrypoint caught, but replays the tasks that ran after it

Bug

langchain-ai/langgraph#9475 · opened

on Oct 28, 2026

5

checkpoint: Redis cache tests flush unrelated data from local databases

langchain-ai/langgraph#9474 · opened

on Oct 28, 2026

cli: deployment archives omit uv workspaces outside the config directory

langchain-ai/langgraph#9473 · opened

on Oct 28, 2026

sdk-py: async protocol SSE accepts HTML responses as successful empty streams

langchain-ai/langgraph#9472 · opened

on Oct 28, 2026

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Issues

asyncio.iscoroutinefunction usage in checkpoint store embed is deprecated in Python 3.14

sdk-py: a stream that drops before its first event reconnects without limit

`AsyncBatchedBaseStore` skips the `str(key)` coercion `BaseStore` applies, so `AsyncSqliteStore.aget(ns, 42)` misses an item written with `aput(ns, 42, ...)`

`task(fn, name=...)` renames the user function in place, so named tasks sharing a function all run under the last name

`@entrypoint` ignores postponed annotations (`from future import annotations`): schemas fail and `entrypoint.final` is not unwrapped

checkpoint: PersistentDict.sync masks serialization errors and leaves temporary files on Windows

Set of tuples in state is restored as a list from a checkpoint

sdk-py: get_client(url=None) accepts timeout= but never applies it — in-process calls cannot be bounded

sdk-py: timeout= does not bound runs.stream() — server SSE heartbeats reset the read timeout forever

add error when specifying recursionLimit inside the configurable key value

`RetryPolicy(max_attempts=...)` never gives up on a node that calls `interrupt()` before it fails: every resume starts counting attempts again

A Document in ToolMessage.artifact comes back from a checkpoint as a dict

Time travel to an interrupt reapplies the Command(update=...) of the old branch

Enum, UUID and date dict keys in state lose their type in a checkpoint

A read expires a PostgresStore item at once when its TTL is 30 seconds or less

update_state on the head of a failed run drops a finished sibling's writes

sdk-py: full tool delta buffer raises QueueFull on completion and leaves deltas hanging

With a `TimeoutPolicy` on a node and `step_timeout` on the graph it runs, resuming after a sibling's failure makes that graph return before its `Send` fan-out ran

JsonPlusSerializer: pydantic RootModel state loses its type on checkpoint round trip and breaks interrupt/resume

A subgraph node with a `RetryPolicy` asks again after a failed attempt, but the resumed run continues the failed attempt and discards the new answer

Agent Server: a custom http.app empties the built-in operations in /openapi.json

Functional API: resume re-runs a `@task` whose exception the entrypoint caught, but replays the tasks that ran after it

checkpoint: Redis cache tests flush unrelated data from local databases

cli: deployment archives omit uv workspaces outside the config directory

sdk-py: async protocol SSE accepts HTML responses as successful empty streams