chore(deps): update dependency langgraph-sdk to v0.4.2

[red-hat-konflux]

This PR contains the following updates:

Package	Change	Age	Confidence
langgraph-sdk (source)	==0.3.14 → ==0.4.2

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Release Notes

langchain-ai/langgraph (langgraph-sdk)

v0.4.2

Compare Source

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

v0.4.1

Compare Source

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

v0.4.0

Compare Source

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

v0.3.15

Compare Source

langgraph 0.3.15

Summary of Changes

• Added more efficient channel availability checks through new is_available() method on all channel types #​3890
• Simplified branch mechanism in StateGraph with unified channel naming #​3891
• Improved performance in Pregel task creation and execution #​3893

Detailed Changes

langgraph.channels.base.BaseChannel

• Added new is_available() method to check if a channel has values without having to catch exceptions #​3890

All Channel Types

• Refactored all channel implementations to use a MISSING sentinel value instead of attribute errors for tracking empty state #​3890
• Added efficient is_available() implementations to:
  • AnyValue
  • BinaryOperatorAggregate
  • DynamicBarrierValue
  • EphemeralValue
  • LastValue
  • NamedBarrierValue
  • Topic
  • UntrackedValue

langgraph.graph.state.StateGraph

• Simplified branch mechanism by using a single universal channel pattern branch:to:{node} instead of complex channel names #​3891
• Improved efficiency by creating a single branch channel for each node rather than one for each potential branch destination #​3891

langgraph.pregel.algo

• Improved performance by adding dedicated checkpoint_null_version() and _triggers() helper functions #​3893
• Enhanced task creation efficiency by using binascii.unhexlify instead of UUID parsing #​3893
• Optimized memory usage with single tuple constant for push triggers instead of creating new lists #​3893
• Updated to use the new channel is_available() method instead of exception handling #​3890

langgraph.pregel.io

• Removed return_exception parameter from read_channel() as it's no longer needed with the new availability checking #​3890
• Updated branch channel name handling to use the simplified naming convention #​3891

langgraph.types

• Changed PregelExecutableTask.triggers type from list[str] to more flexible Sequence[str] for better performance #​3893

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