LangGraph Updates & Release Notes

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68 updates curated from 1 source by the Releasebot Team. Last updated: Jul 10, 2026

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Jul 10, 2026
Date parsed from source:
Jul 10, 2026

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Jul 10, 2026
LangGraph by LangChain

langgraph==1.2.9

LangGraph fixes updateState metadata and counters for the delta channel in its 1.2.9 release.

Changes since 1.2.8

release(langgraph): 1.2.9 (#8316)

fix: updateState metadata/counters for delta channel (#8315)
Original source
Jul 6, 2026
Date parsed from source:
Jul 6, 2026

First seen by Releasebot:
Jul 7, 2026
LangGraph by LangChain

langgraph==1.2.8

LangGraph fixes a delta channel bug in updateState and ships dependency updates in 1.2.8.

Changes since 1.2.7

release(langgraph): 1.2.8 (#8292)
fix: delta channel bug with updateState on fresh thread will force snapshot instead of stub checkpoint (#8290)
chore(deps): bump the minor-and-patch group in /libs/langgraph with 8 updates (#8255)
chore(deps): bump websockets from 15.0.1 to 16.0 in /libs/langgraph in the major group (#8256)
chore(deps): bump the minor-and-patch group in /libs/sdk-py with 9 updates (#8252)
Original source
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Jun 30, 2026
Date parsed from source:
Jun 30, 2026

First seen by Releasebot:
Jun 30, 2026
LangGraph by LangChain

langgraph==1.2.7

LangGraph ships 1.2.7 with fixes for snapshot DeltaChannel overwrite supersteps, JSON roundtrips, and valid UUIDs for exit-mode delta task IDs, plus dependency updates across redis, langsmith, jupyterlab, cryptography, jupyter-server, tornado, pyjwt, and bleach.

Changes since 1.2.6

release(langgraph): 1.2.7 (#8223)

fix(langgraph): snapshot DeltaChannel overwrite supersteps (#8125)

fix(langgraph): Make Overwrite survive JSON roundtrips (#8127)

chore(deps): bump redis in /libs/langgraph (#7976)

chore(deps): bump langsmith from 0.8.0 to 0.8.18 in /libs/langgraph (#8176)

chore(deps): bump jupyterlab from 4.5.7 to 4.5.9 in /libs/langgraph (#8164)

fix(langgraph): emit valid UUIDs for exit-mode delta task_ids for langgraph-api (#8165)

chore(deps): bump bleach from 6.3.0 to 6.4.0 in /libs/langgraph (#8107)

chore(deps): bump cryptography from 46.0.7 to 48.0.1 in /libs/langgraph (#8106)

chore(deps): bump jupyter-server from 2.18.0 to 2.20.0 in /libs/langgraph (#8134)

chore(deps): bump tornado from 6.5.6 to 6.5.7 in /libs/langgraph (#8108)

chore(deps): bump pyjwt from 2.12.0 to 2.13.0 in /libs/langgraph (#8092)
Original source
Jun 18, 2026
Date parsed from source:
Jun 18, 2026

First seen by Releasebot:
Jun 18, 2026
LangGraph by LangChain

langgraph==1.2.6

LangGraph releases 1.2.6 with subgraph checkpoint and stream-abort fixes for smoother graph execution.

Changes since 1.2.5

release(langgraph): 1.2.6 (#8139)
fix: nested subgraph inherits parent checkpoint_ns (regression in 1.2.3) (#8053)
fix: cancel running subgraphs on v3 stream abort [closes #8029] (#8057)
release(cli): 0.4.30 (#8101)
docs: standardize package README.md structure (#8064)
chore(deps): bump tornado from 6.5.5 to 6.5.6 in /libs/langgraph (#8063)
Original source
Jun 16, 2026
Date parsed from source:
Jun 16, 2026

First seen by Releasebot:
Jun 17, 2026
LangGraph by LangChain

langgraph-cli==0.4.30

LangGraph releases CLI 0.4.30 with compatible API version range support and README structure updates.

Changes since cli==0.4.29

release(cli): 0.4.30 (#8101)

feat(cli): support compatible api version ranges (#8023)

docs: standardize package README.md structure (#8064)
Original source
Similar to LangGraph with recent updates:
Jun 12, 2026
Date parsed from source:
Jun 12, 2026

First seen by Releasebot:
Jun 16, 2026
LangGraph by LangChain

langgraph==1.2.5

LangGraph releases 1.2.5 with bug fixes, metadata merging, and a CLI update.
Changes since 1.2.4

release(langgraph): 1.2.5 (#8062)

fix(langgraph): merge lc_versions config metadata (#8052)

release(cli): 0.4.28 (#8041)

fix: updateState bug for deltaChannel on empty thread (#8011)

chore: migrate Python type checking to ty (#8002)

chore(deps-dev): bump types-requests from 2.33.0.20260408 to 2.33.0.20260518 in /libs/langgraph (#7977)

chore(deps): bump the minor-and-patch group in /libs/langgraph with 14 updates (#7975)

Original source
Jun 11, 2026
Date parsed from source:
Jun 11, 2026

First seen by Releasebot:
Jun 11, 2026
LangGraph by LangChain

langgraph-cli==0.4.29

LangGraph CLI adds HTTPS dev server support with certfile and cert key options.

Changes since cli==0.4.28

release(cli): 0.4.29 (#8046)

feat(cli): add support for passing certfile and cert key to run dev server under HTTPS (#8031)
Original source
Jun 10, 2026
Date parsed from source:
Jun 10, 2026

First seen by Releasebot:
Jun 11, 2026
LangGraph by LangChain

langgraph-cli==0.4.28

LangGraph releases CLI 0.4.28 with dependency refreshes, a move to ty for Python type checking, and improved deployment tracking for ADK and other library usage.
Changes since cli==0.4.27

release(cli): 0.4.28 (#8041)

chore(deps): bump starlette from 1.0.0 to 1.0.1 in /libs/cli (#8005)

chore: migrate Python type checking to ty (#8002)

chore(deps): bump the minor-and-patch group in /libs/cli with 4 updates (#7962)

chore(deps): bump typescript from 5.9.3 to 6.0.3 in /libs/cli/js-monorepo-example (#7672)

chore(deps-dev): bump typescript from 5.9.3 to 6.0.3 in /libs/cli/js-examples in the major group across 1 directory (#7966)

chore(deps-dev): bump mypy from 1.20.2 to 2.1.0 in /libs/cli in the major group (#7968)

chore(deps): bump the minor-and-patch group in /libs/cli/js-monorepo-example with 7 updates (#7959)

chore(deps): bump the minor-and-patch group in /libs/cli/js-examples with 8 updates (#7963)

chore(deps): bump uv from 0.11.7 to 0.11.15 in /libs/cli (#7943)

chore(langgraph): Track ADK/other library usage when deploying using cli (#7939)

Original source
Jun 2, 2026
Date parsed from source:
Jun 2, 2026

First seen by Releasebot:
Jun 3, 2026
LangGraph by LangChain

langgraph==1.2.4

LangGraph fixes backward compatibility and adds a factory graph integration test in 1.2.4.

Changes since 1.2.3

release(langgraph): 1.2.4 (#7991)

test(sdk-py): add factory-graph integration test exercising the server factory path (#7978)

fix(langgraph): keep _on_started backward-compatible with overrides predating cause (#7987)
Original source
Jun 1, 2026
Date parsed from source:
Jun 1, 2026

First seen by Releasebot:
Jun 2, 2026
LangGraph by LangChain

langgraph==1.2.3

LangGraph releases 1.2.3 with RemoteGraph interleave wiring, v3 streaming support, and named tool-dispatched subagents. It also fixes event naming, config merging, and cancellation handling, while expanding SDK-Py with websocket transports, projections, and v3 streaming primitives.

Changes since 1.2.2

release(langgraph): 1.2.3 (#7945)

feat(langgraph): wire RemoteGraph.interleave to sdk-py interleave_projections (#7938)

feat(langgraph): add v3 streaming support to RemoteGraph (#7927)

feat(langgraph): name tool-dispatched subagents via lc_agent_name (#7928)

fix(langgraph): rename ProtocolEvent.eventId to event_id to match the wire field (#7942)

fix(langgraph): merge instead of overwrite in ensure_config for callbacks, tags, metadata, configurable (#7926)

fix(langgraph): [LSD-1507] Distinguish between user cancelled and other cancellations (#7920)

fix(cli): bump api bound to 0.10.0 (#7922)

feat(sdk-py): add websocket stream transports (#7830)

feat(sdk-py): add messages and tool call projections (#7823)

feat(sdk-py): add v3 streaming primitives and SSE transport (#7818)
Original source
Jun 1, 2026
Date parsed from source:
Jun 1, 2026

First seen by Releasebot:
Jun 2, 2026
LangGraph by LangChain

langgraph-sdk==0.4.2

LangGraph ships sdk-py 0.4.2 with a fix for percent-encoding thread_id in v3 stream transport default paths.

Changes since sdk==0.4.1

release(sdk-py): 0.4.2 (#7955)

fix(sdk-py): percent-encode thread_id in v3 stream transport default paths (#7954)
Original source
Jun 1, 2026
Date parsed from source:
Jun 1, 2026

First seen by Releasebot:
Jun 2, 2026
LangGraph by LangChain

langgraph-sdk==0.4.1

LangGraph adds v3 streaming support to RemoteGraph and SDK-py updates with stream decoder improvements.

Changes since sdk==0.4.0

release(sdk-py): 0.4.1 (#7944)

feat(sdk-py): extract stream decoders and add interleave_projections (#7935)

feat(langgraph): add v3 streaming support to RemoteGraph (#7927)

fix(sdk-py): make tools_agent fake model stateless (#7930)
Original source
May 28, 2026
Date parsed from source:
May 28, 2026

First seen by Releasebot:
May 29, 2026
LangGraph by LangChain

langgraph-sdk==0.4.0

LangGraph ships a major SDK update with new streaming foundations, including SSE and websocket transports, reconnect support, thread stream helpers, sync and async thread streaming, scoped subgraphs, message and tool call projections, and output extraction improvements.

Changes since sdk==0.3.15

release(sdk-py): 0.4.0 (#7923)

feat(sdk-py): add thread stream helpers (#7833)

feat(sdk-py): wire websocket stream selection (#7832)

feat(sdk-py): add websocket stream transports (#7830)

feat(sdk-py): harden streaming reconnects (#7829)

feat(sdk-py): add sync scoped subgraphs (#7828)

feat(sdk-py): add sync messages and tool calls (#7827)

feat(sdk-py): add sync thread stream core (#7826)

feat(sdk-py): add async stream reconnect support (#7825)

feat(sdk-py): add scoped subgraph handles (#7824)

feat(sdk-py): add messages and tool call projections (#7823)

feat(sdk-py): add output, values, and controller extraction (#7822)

feat(sdk-py): wire lifecycle state and output prerequisites (#7821)

feat(sdk-py): add shared stream subscriptions (#7820)

feat(sdk-py): add async thread stream skeleton (#7819)

feat(sdk-py): add v3 streaming primitives and SSE transport (#7818)

chore(langgraph): bump version to 1.2.2 (#7914)
Original source
May 28, 2026
Date parsed from source:
May 28, 2026

First seen by Releasebot:
May 29, 2026
LangGraph by LangChain

langgraph-cli==0.4.27

LangGraph releases CLI 0.4.27 with fixes for pinned internal Docker deploy images and an API bound update, plus routine dependency bumps across the CLI and example projects.
Changes since cli==0.4.26

release(cli): 0.4.27 (#7925)

fix(cli): pin internal_docker deploy images by digest (#7924)

fix(cli): bump api bound to 0.10.0 (#7922)

chore(deps): bump the uv group across 2 directories with 1 update (#7853)

chore(deps): bump idna from 3.11 to 3.15 in /libs/cli (#7865)

chore(deps): bump turbo from 2.9.7 to 2.9.14 in /libs/cli/js-monorepo-example (#7868)

chore(deps): bump langsmith from 0.6.3 to 0.7.1 in /libs/cli/js-monorepo-example (#7854)

chore(deps): bump langsmith from 0.7.32 to 0.8.0 in /libs/cli (#7791)

chore(deps): bump langsmith from 0.5.20 to 0.6.3 in /libs/cli/js-monorepo-example (#7783)

chore(deps): bump langsmith from 0.5.20 to 0.6.3 in /libs/cli/js-examples (#7782)

chore(deps): bump the uv group across 2 directories with 1 update (#7769)

Original source
May 26, 2026
Date parsed from source:
May 26, 2026

First seen by Releasebot:
May 27, 2026
LangGraph by LangChain

langgraph==1.2.2

LangGraph fixes stable BaseMessage IDs and ships checkpoint release 4.1.1 in version 1.2.2.

Changes since 1.2.1

chore(langgraph): bump version to 1.2.2 (#7914)

fix(langgraph): assign stable IDs to id=None BaseMessages before DeltaChannel checkpoint writes (#7913)

release(checkpoint): 4.1.1 (#7890)
Original source