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@langchain/langgraph breaking changes

Every breaking API change we have recorded in @langchain/langgraph on npm: 89 breaking changes in 1 version. Below are its newest version, removals and renames first, each with its source.

Newest change October 18, 2025

On this page

1.0.0

89 breaking changes, first published October 18, 2025.

  • Removed Command.__@COMMAND_SYMBOL@5286038
    Command.__@COMMAND_SYMBOL@5286038 was removed in @langchain/langgraph 1.0.0 npmjs.com
  • Removed typedNode
    typedNode was removed in @langchain/langgraph 1.0.0 npmjs.com
  • Signature changed AsyncBatchedStore
    Was export {MemorySaver, type Checkpoint, type CheckpointMetadata, type CheckpointTuple, copyCheckpoint, emptyCheckpoint, BaseCheckpointSaver, type Item, type GetOperation, type SearchOperation, type PutOperation, type Operation, type... npmjs.com
  • Signature changed BaseCheckpointSaver
    Was export {MemorySaver, type Checkpoint, type CheckpointMetadata, type CheckpointTuple, copyCheckpoint, emptyCheckpoint, BaseCheckpointSaver, type Item, type GetOperation, type SearchOperation, type PutOperation, type Operation, type... npmjs.com
  • Signature changed BaseLangGraphErrorFields
    Was type BaseLangGraphErrorFields = {lc_error_code?: "GRAPH_RECURSION_LIMIT" | "INVALID_CONCURRENT_GRAPH_UPDATE" | "INVALID_GRAPH_NODE_RETURN_VALUE" | "MULTIPLE_SUBGRAPHS" | "UNREACHABLE_NODE";}; now type BaseLangGraphErrorFields =... npmjs.com
  • Signature changed BaseLangGraphErrorFields.lc_error_code
    Was lc_error_code?: "GRAPH_RECURSION_LIMIT" | "INVALID_CONCURRENT_GRAPH_UPDATE" | "INVALID_GRAPH_NODE_RETURN_VALUE" | "MULTIPLE_SUBGRAPHS" | "UNREACHABLE_NODE"; now lc_error_code?: "GRAPH_RECURSION_LIMIT" |... npmjs.com
  • Signature changed BaseStore
    Was export {MemorySaver, type Checkpoint, type CheckpointMetadata, type CheckpointTuple, copyCheckpoint, emptyCheckpoint, BaseCheckpointSaver, type Item, type GetOperation, type SearchOperation, type PutOperation, type Operation, type... npmjs.com
  • Signature changed Checkpoint
    Was export {MemorySaver, type Checkpoint, type CheckpointMetadata, type CheckpointTuple, copyCheckpoint, emptyCheckpoint, BaseCheckpointSaver, type Item, type GetOperation, type SearchOperation, type PutOperation, type Operation, type... npmjs.com
  • Signature changed CheckpointMetadata
    Was export {MemorySaver, type Checkpoint, type CheckpointMetadata, type CheckpointTuple, copyCheckpoint, emptyCheckpoint, BaseCheckpointSaver, type Item, type GetOperation, type SearchOperation, type PutOperation, type Operation, type... npmjs.com
  • Signature changed CheckpointTuple
    Was export {MemorySaver, type Checkpoint, type CheckpointMetadata, type CheckpointTuple, copyCheckpoint, emptyCheckpoint, BaseCheckpointSaver, type Item, type GetOperation, type SearchOperation, type PutOperation, type Operation, type... npmjs.com

And 79 more in this version.

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