Changes since cli==0.4.32

Changes since cli==0.4.30

• chore(cli): allow langgraph-api versions up to 1.0.0 (#8319)
• chore(deps): bump the minor-and-patch group in /libs/cli with 5 updates (#8251)
• chore(deps): bump the minor-and-patch group in /libs/cli/js-examples with 6 updates (#8246)
• chore(deps): bump the minor-and-patch group in /libs/cli/js-monorepo-example with 7 updates (#8245)
• chore(deps): bump starlette from 1.0.1 to 1.3.1 in /libs/cli (#8105)
• chore(deps): bump langsmith from 0.8.0 to 0.8.18 in /libs/cli (#8172)
• feat(cli): allow prebuild images for langgraph deploy (#8100)
• chore(deps): bump langchain-anthropic from 1.0.0a5 to 1.4.6 in /libs/cli/examples/graph_prerelease_reqs in the pip group across 1 directory (#8145)
• chore(deps): bump @babel/core from 7.25.2 to 7.29.7 in /libs/cli/js-examples (#8144)
• chore(deps): bump js-yaml from 4.1.1 to 4.2.0 in /libs/cli/js-monorepo-example (#8143)
• chore(deps): bump cryptography from 46.0.7 to 48.0.1 in /libs/cli (#8103)
• chore(deps): bump pyjwt from 2.12.1 to 2.13.0 in /libs/cli (#8093)

Changes since 0.4.9

• Revert change to default value of checkpoint_during arg (#5177)
• Revert change to default value of checkpoint_during arg
• Fix bug where Command(update=) could be ignored if there was a 2nd interrupt after it
• Reduce extraneous keys in checkpoint.metadata
• If FuturesDict callback has been GCed, don't call it
• langgraph 0.5.0rc1
• langgraph 0.5.0rc0
• Preparation for 0.5 release: langgraph-checkpoint (#5124)
• Preparation for 0.5 release
• Add migration for pending_sends (#5106)
• Lint
• Introduce "tasks" and "checkpoints" stream modes
• Add migration for pending_sends
• Restore compatibility with custom checkpointer classes created in prior versions
• Revert "Remove UntrackedValue channel"
• Revert "Remove MessageGraph (#4875)"
• fix(langgraph): remove deprecated output usage in favor of output_schema (#5095)
• refactor(langgraph): Remove PregelNode's inheritance from Runnable (#5093)
• Remove support for node reading a single managed value
• PregelLoop: Simplify tick() method (#5080)
• serialize/deserialize pandas with pickle fallback (#5057)
• Remove code paths no longer needed
• Avoid saving checkpoints for subgraphs when checkpoint_during=False (#5051)
• Remove gitmcp badge (#5055)
• Update existing
• Add tests
• Avoid saving checkpoints for subgraphs when checkpoint_during=False
• Clean up things for Matt!
• Support numpy array serialization in JsonPlusSerializer (#5035)
• Update ormsgpack (#5034)
• deprecate input and output in favor of input_schema and output_schema (#4983)
• using StateT as default for InputT
• lint: use pep 604 union syntax and pep 585 generic syntax (#4963)
• docs: remove references to StateGraph(dict) (#4964)
• rename retry -> retry_policy (#4957)
• Fix step_timeout causing ParentCommand/GraphInterrupt exception to bubble up
• docs: fix a grammar issue in multiple files (#4935)
• Make it possible to run test command without docker installed (#4948)
• Fix async callback manager tag handling (#4949)
• Pass tags when configuring async callback manager
• Allow same-name channels and nodes in StateGraph (#4944)
• Make it possible to run test command without docker installed
• docs: fix ensure_config docstring
• Allow same-name channels and nodes in StateGraph
• Improve type checking on graph init and invoke/stream (#4932)
• docs: fix a grammar issue in multiple files
• Fix makefile command file for dev server - pidfile was always empty
• Fix Command(graph=PARENT) when used together w checkpointer=True
• Remove unused deprecation decorator/warning (#4917)
• Require state_schema in StateGraph.__init__ (#4897)
• Remove add_conditional_edge(..., then=) (#4893)
• Avoid repeated runtime calls to get_type_hints
• Remove MessageGraph (#4875)
• Remove non-state Graph
• Remove UntrackedValue channel
• Remove UntrackedValue channel (#4859)
• Flip default for checkpoint_during
• Remove Channel node builder
• Update managed value usage in local_read (#4854)
• Modify stream mode messages and custom to respect subgraphs=False (#4843)
• Remove Checkpoint.writes (#4822)
• Remove Checkpoint.pending_sends (#4820)
• Pregel: Add NodeBuilder class to replace Channel.subscribe_to (#4819)
• Remove dict subclasses used for values/updates stream chunks (#4816)
• Remove old checkpoint test fixtures (#4814)
• Remove postgres shallow checkpointer (#4813)
• Remove ChannelsManager, ManagedValues are now static classes and never instantiated (#4812)
• Remove Context channel / managed value, Remove SharedValue (#4857)
• Update managed value usage in local_read
• Format
• Remove Checkpoint.writes
• Remove Checkpoint.pending_sends
• Pregel: Add NodeBuilder class to replace Channel.subscribe_to
• Lint
• Remove old checkpoint test fixtures
• Remove postgres shallow checkpointer
• Remove ChannelsManager, ManagedValues are now static classes and never instantiated
• Remove Context channel / managed value, Remove SharedValue

Changes since 0.5.0rc1

• Revert change to default value of checkpoint_during arg (#5177)
• Revert change to default value of checkpoint_during arg
• Fix bug where Command(update=) could be ignored if there was a 2nd interrupt after it
• Reduce extraneous keys in checkpoint.metadata
• If FuturesDict callback has been GCed, don't call it

Changes since 0.4.7

• Remove unused deprecation decorator/warning (#4917)
• Require state_schema in StateGraph.__init__ (#4897)
• Remove add_conditional_edge(..., then=) (#4893)
• Avoid repeated runtime calls to get_type_hints
• Remove MessageGraph (#4875)
• Remove non-state Graph
• Remove UntrackedValue channel
• Remove UntrackedValue channel (#4859)
• Flip default for checkpoint_during
• Remove Channel node builder
• Update managed value usage in local_read (#4854)
• Modify stream mode messages and custom to respect subgraphs=False (#4843)
• Remove Checkpoint.writes (#4822)
• Remove Checkpoint.pending_sends (#4820)
• Pregel: Add NodeBuilder class to replace Channel.subscribe_to (#4819)
• Remove dict subclasses used for values/updates stream chunks (#4816)
• Remove old checkpoint test fixtures (#4814)
• Remove postgres shallow checkpointer (#4813)
• Remove ChannelsManager, ManagedValues are now static classes and never instantiated (#4812)
• Remove Context channel / managed value, Remove SharedValue (#4857)
• Remove SchemaCoercionMapper
• Update managed value usage in local_read
• prebuilt: release 0.2.2 (#4851)
• Format
• Remove Checkpoint.writes
• Remove Checkpoint.pending_sends
• Pregel: Add NodeBuilder class to replace Channel.subscribe_to
• Lint
• Remove old checkpoint test fixtures
• Remove postgres shallow checkpointer
• Remove ChannelsManager, ManagedValues are now static classes and never instantiated
• Remove Context channel / managed value, Remove SharedValue
• Merge branch 'main' into fix-examples-link-readme
• Update libs/langgraph/README.md
• Update libs/langgraph/README.md
• Merge branch 'main' into fix-examples-link-readme
• Merge branch 'main' into fix-examples-link-readme
• Merge branch 'main' into fix-examples-link-readme
• Merge branch 'langchain-ai:main' into fix-examples-link-readme
• fix link to examples page in readme.md

Changes since 0.4.6

• 0.4.7
• Fix stream mode not respected in subgraphs
• Try to make test less flaky
• Add tests for stream_events when using imperative api

Changes since 0.4.5

• 0.4.6
• Fix
• Lint
• Add sync test
• Fix
• Fix exception handling for imperative tasks
• prebuilt: release 0.2.1 (#4801)
• prebuilt: release 0.2.0 (#4793)
• Code review
• feat(langgraph): push_messages should directly write to the state
• feat(graph): add push_message method to push manually to messages / message-tuple stream (#4722)
• Add message state test
• Apply same condition for stream_mode=values in suppress interrupt
• Remove redundant cast
• feat(graph): add push_message method to push manually to messages / message-tuple stream
• Last uv.lock?
• Only emit stream values chunks when the output channels have changed (#4774)
• docs: fix example pregel reducer (#4740)
• prebuilts hitl: fix branching logic + add structural snapshot tests (#4767)
• docs: deferred nodes (#4759)
• Remove local_write utility (#4751)
• Print output for cached @task functions (#4750)
• Print output for cached @task functions
• sqlite: Add test for search with list filters (#4747)
• sqlite: update list_namespaces with max_depth (#4746)
• Update lockfile
• docs: Clean up adjective use in readme (#4734)
• SqliteStore (#3608)
• ci: fix benchmark command (#4729)
• docs: document tuples in streaming guides (#4690)
• ci: migrate to uv! (#4698)

Changes since 0.4.4

• langgraph: release 0.4.5 (#4709)
• Improve how we match cached writes for async imperative tasks (#4691)
• Lint
• Improve how we match cached writes for async imperative tasks

Changes since 0.4.3

• langgraph: release 0.4.4 (#4704)
• update for consistency
• lint again
• use list
• lint + update
• update
• update
• update
• langgraph: fix drawing graph with root channel
• langgraph: fix graph drawing for self-loops
• Merge branch 'main' into clean
• [Proposal] add gitmcp badge for simple LLM-accessible documentation (#4502)
• Change LG Cloud > Platform
• Fix invalid channels error message (#4357)
• docs: remove unused annotation comments in readmes (#4656)
• docs: General language cleanup (#4649)
• [docs] LangGraph / LangGraph Platform docs updates (#4479)
• Port checkpointer/store fixtures in langgraph-prebuilt to idiomatic pattern (#4629)
• Extend all tests using InMemorySaver to use all available checkpointers (#4627)
• Implement update_state for functional api (#4626)
• More idiomatic sync/async checkpointer fixtures in pytest (#4624)
• More idiomatic sync/async store fixtures in pytest (#4617)
• Overload clear method to delete all when called without args
• Limit depth
• Extend all tests using InMemorySaver to use all available checkpointers
• Implement update_state for functional api
• Fix
• More idiomatic sync/async checkpointer fixtures in pytest
• Move to sep file
• More idiomatic sync/async store fixtures in pytest
• Lint
• Lint
• Move FileCache to sqlite package, add InMemoryCache
• Add clear cache methods
• Remove refresh
• Add namespace to cache keys
• Lint
• Lint
• Lint
• Lint
• Lint
• Lint
• Lint
• Finish implementation, add tests
• Lint
• Lint
• Accept default cache_policy for graph/entrypoint/pregel
• Fix
• Fix
• Output cached writes
• Lint
• Rename
• Fix type annotation
• Fixes
• Re-do with separate cache interface
• WIP
• Deferred Node (#4269)
• Start dev server externally (#4604)

Changes since 0.4.2

• release: 0.4.3 (#4592)
• langgraph: use tuples for streamed message events in RemoteGraph (#4589)
• Fix remote streaming of subgraphs (#4590)
• Add a limit to Pregel.draw (#4575)

Changes since 0.4.1

• 0.4.2 (#4570)
• update
• langgraph: decouple name from assistant ID in RemoteGraph
• prebuilt: switch to executing parallel tool calls via Send by default (#4438)
• fix for langgraph
• docstring fixes for libs/langgraph
• docs: update add_messages API ref (#4495)
• update other tests

langgraph 0.4.1

Summary of Changes

• Fixed an issue handling END in StateGraph edges to properly terminate graph execution #4458
• Migrated codebase to exclusively use Pydantic V2, removing support for Pydantic V1 #4448
• Added ability to merge UI message props using a new merge parameter #4473
• Changed TAG_NOSTREAM from "langsmith:nostream" to "nostream", maintaining backwards compatibility #4473
• Improved docstrings and documentation throughout the codebase #4463
• Fixed UI message metadata handling in push_ui_message #4467

Detailed Changes

langgraph.graph.state.StateGraph

• Fixed handling of the END constant in get_writes and _control_static functions, ensuring proper graph termination when returning to END #4458

langgraph.graph.ui

• Added a new merge parameter to push_ui_message function, allowing incremental updates to UI messages #4473
• Enhanced ui_message_reducer to support merging props from existing messages when the merge flag is set #4473
• Fixed metadata handling in push_ui_message by removing old metadata merging which could cause unexpected behavior #4467

langgraph.constants

• Changed TAG_NOSTREAM from "langsmith:nostream" to "nostream" #4473
• Added TAG_NOSTREAM_ALT with the old value ("langsmith:nostream") for backward compatibility #4473

langgraph.graph.schema_utils

• Removed support for Pydantic V1 models in SchemaCoercionMapper #4448
• Simplified type adapters to work exclusively with Pydantic V2 #4448

langgraph.utils.pydantic

• Completely rewritten to use only Pydantic V2 APIs #4448
• Added proper caching for model creation with lru_cache for better performance #4448
• Fixed handling of reserved names and field remapping to avoid collisions with Pydantic internals #4448

langgraph.channels.base.BaseChannel

• Added docstring to clarify the purpose of this base class #4463

langgraph 0.4.0

Summary of Changes

• Added improved support for interrupt handling in streaming modes, with interrupts now properly propagated in "values" stream mode #4374
• Enhanced interrupt resumption with namespace-specific resume values, allowing targeted resumption of specific interrupts #4406
• Fixed branch handling to properly process END nodes in graph visualization and execution #4409
• Fixed issue where empty Commands with resume maps would raise an error #4444
• Updated Python compatibility to allow future Python versions while maintaining 3.9+ support #4416

Detailed Changes

langgraph.types.Interrupt

• Added interrupt_id property that generates a unique ID for the interrupt based on its namespace #4406
• Updated ID generation to use | as a separator between namespace elements for better uniqueness #4406

langgraph.types.StreamMode

• Updated docstring to clarify that "values" mode emits all values including interrupts after each step #4374

langgraph.types.StateSnapshot

• Added interrupts field to track interrupts that occurred in a step and are pending resolution #4406
• Improved documentation for all fields in the class #4406

langgraph.types.Command

• Enhanced resume parameter to support mapping interrupt IDs to resume values #4406
• Improved documentation for the resume parameter #4406

langgraph.pregel.Pregel

• Improved invoke and ainvoke methods to properly collect and handle interrupts in streamed output #4374
• Enhanced interrupt emission to work in both "values" and "updates" stream modes #4374
• Modified state snapshot preparation to collect interrupts from tasks #4406

langgraph.graph.branch.Writer

• Updated signature to accept a boolean parameter indicating whether the operation is for static writes #4409
• Fixed branch handling to properly process END nodes #4409

langgraph.pregel.loop.PregelLoop

• Fixed Command handling to support empty Commands with resume maps #4444
• Added support for namespace-based resumption through CONFIG_KEY_RESUME_MAP #4406

langgraph.pregel.draw

• Improved graph visualization to correctly handle END nodes #4409
• Added add_edge utility function to prevent duplicate edges in graph visualization #4409