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fix(core): fix BaseTool when <code>args_schema</code> has pydantic validators that change the input keys

bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing feature

coreRelated to the package `langchain-core`Related to the package `langchain-core`

Status: Open (in progress).

langchain-ai/langchainnumber 30004

#30004 In langchain-ai/langchain;

· VMinB12 opened on Feb 26, 2025

refactor(core): remove unused Context API

coreRelated to the package `langchain-core`Related to the package `langchain-core`

Status: Open (in progress).

langchain-ai/langchainnumber 30382

#30382 In langchain-ai/langchain;

· hinthornw opened on Mar 19, 2025

fix(core): trace tools called in metadata

coreRelated to the package `langchain-core`Related to the package `langchain-core`

Status: Draft (not ready).

langchain-ai/langchainnumber 30631

#30631 In langchain-ai/langchain;

· baskaryan opened on Apr 3, 2025

fix(core): add <code>on_tool_error</code> to <code>_AstreamEventsCallbackHandler</code>

coreRelated to the package `langchain-core`Related to the package `langchain-core`

Status: Open (in progress).

langchain-ai/langchainnumber 30709

#30709 In langchain-ai/langchain;

· vbarda opened on Apr 7, 2025

feat(core): deprecate problematic <code>dict()</code> method

coreRelated to the package `langchain-core`Related to the package `langchain-core`

Status: Open (in progress).

langchain-ai/langchainnumber 31685

#31685 In langchain-ai/langchain;

· cbornet opened on Jun 20, 2025

feat(langchain_v1): add messages namespace

langchainRelated to the package `langchain`Related to the package `langchain`

Status: Draft (not ready).

langchain-ai/langchainnumber 32229

#32229 In langchain-ai/langchain;

· eyurtsev opened on Jul 24, 2025

docs(core): add message-type-specific documentation for message <code>name</code> fields

coreRelated to the package `langchain-core`Related to the package `langchain-core`

Status: Open (in progress).

langchain-ai/langchainnumber 32469

#32469 In langchain-ai/langchain;

· mdrxy opened on Aug 8, 2025

refactor(core): remove <code>example</code> attribute from <code>AIMessage</code> and <code>HumanMessage</code>

coreRelated to the package `langchain-core`Related to the package `langchain-core`

Status: Open (in progress).

langchain-ai/langchainnumber 32565

#32565 In langchain-ai/langchain;

· mdrxy opened on Aug 15, 2025

chore: v1 formatting

codspeed-ignore⚠️ Shouldn't be regularly used! Bypasses Codspeed performance checks⚠️ Shouldn't be regularly used! Bypasses Codspeed performance checks

lintingLinting, formatting, or typingLinting, formatting, or typing

Status: Draft (not ready).

langchain-ai/langchainnumber 32566

#32566 In langchain-ai/langchain;

· mdrxy opened on Aug 15, 2025

release: v1

coreRelated to the package `langchain-core`Related to the package `langchain-core`

documentationImprovements or additions to documentationImprovements or additions to documentation

integrationRelated to a provider partner package integrationRelated to a provider partner package integration

langchainRelated to the package `langchain`Related to the package `langchain`

release

standard-testsRelated to the package `standard-tests`Related to the package `standard-tests`

Status: Draft (not ready).

langchain-ai/langchainnumber 32567

#32567 In langchain-ai/langchain;

· mdrxy opened on Aug 15, 2025

chore(langchain): fix deprecation warnings

langchainRelated to the package `langchain`Related to the package `langchain`

Status: Open (in progress).

langchain-ai/langchainnumber 32379

#32379 In langchain-ai/langchain;

· cbornet opened on Aug 4, 2025

feat(core): implement <code>_strip_ids_from_messages</code> function to normalize message IDs for caching

bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing feature

coreRelated to the package `langchain-core`Related to the package `langchain-core`

Status: Open (in progress).

langchain-ai/langchainnumber 32642

#32642 In langchain-ai/langchain;

· mdrxy opened on Aug 21, 2025

feat(ollama): v1 message format support

codspeed-ignore⚠️ Shouldn't be regularly used! Bypasses Codspeed performance checks⚠️ Shouldn't be regularly used! Bypasses Codspeed performance checks

integrationRelated to a provider partner package integrationRelated to a provider partner package integration

Status: Draft (not ready).

langchain-ai/langchainnumber 32644

#32644 In langchain-ai/langchain;

· mdrxy opened on Aug 21, 2025

fix(perplexity): preserve citations in structured output

integrationRelated to a provider partner package integrationRelated to a provider partner package integration

Status: Open (in progress).

langchain-ai/langchainnumber 32676

#32676 In langchain-ai/langchain;

· keyuchen21 opened on Aug 26, 2025

feat(core): <code>output_version</code> on invoke / model call

coreRelated to the package `langchain-core`Related to the package `langchain-core`

Status: Open (in progress).

langchain-ai/langchainnumber 32694

#32694 In langchain-ai/langchain;

· mdrxy opened on Aug 26, 2025

chore: update all packages in <code>libs/</code> to drop Python 3.9

integrationRelated to a provider partner package integrationRelated to a provider partner package integration

Status: Open (in progress).

langchain-ai/langchainnumber 32778

#32778 In langchain-ai/langchain;

· mdrxy opened on Sep 1, 2025

chore(core): add utf-8 encoding to <code>Path</code> <code>read_text</code>/<code>write_text</code>

coreRelated to the package `langchain-core`Related to the package `langchain-core`

Status: Open (in progress).

langchain-ai/langchainnumber 32784

#32784 In langchain-ai/langchain;

· cbornet opened on Sep 2, 2025

feat(langchain): middleware support in <code>create_agent</code>

codspeed-ignore⚠️ Shouldn't be regularly used! Bypasses Codspeed performance checks⚠️ Shouldn't be regularly used! Bypasses Codspeed performance checks

langchainRelated to the package `langchain`Related to the package `langchain`

Status: Draft (not ready).

langchain-ai/langchainnumber 32828

#32828 In langchain-ai/langchain;

· sydney-runkle opened on Sep 5, 2025