Changes since langchain==1.2.3
release: langchain 1.2.4 (#34755)
chore(langchain): add agent name metadata (#34743)
chore: update twitter URLs (#34736)
chore: add tests for private state attr use (really, lack thereof) (#34725)
docs(langchain): clarify model ID usage for reliable behavior (#34718)
fix(langchain): tag messages generated from summarization (#34693)
fix(langchain): activate test_return_direct_spec tests, fix types (#34565)
chore(langchain): fix types in test_todo, test_tool_retry (#34503)
chore(langchain): fix types in test_shell_tool (#34502)
chore(langchain): activate mypy warn_return_any rule (#34549)
chore(langchain): fix types in test_tool_selection and test_tool_emulator (#34499)
chore(langchain): fix types in test_shell_execution_policies (#34498)
chore(langchain): improve ignore_missing_imports config (#34551)
test(langchain): complete and activate test_responses tests (#34560)
fix(langchain): activate mypy warn-unreachable (#34553)
chore(langchain): fix types in test_injected_runtime_create_agent, test_create_agent_tool_validation (#34568)
chore(langchain): fix types in test_response_format and test_state_schema (#34571)
chore(langchain): remove generic from FakeToolCallingModel (#34572)
chore(langchain): fix types in test_context_editing, test_agent_name, test_response_format_integration (#34574)
chore(langchain): fix types in test_overrides (#34635)
feat(langchain): add state to _ModelRequestOverrides (#34692)
chore(langchain): fix types in test_tools (#34592)
chore(langchain): fix types in test_summarization (#34656)
test(langchain): activate test_responses_spec tests (#34564)
style(langchain): fix some ruff preview rules (#34663)
chore(langchain): fix types in test_framework (#34567)
chore(langchain): fix types in memory_assert, conftest, conftest_checkpointer and conftest_store (#34636)
chore(langchain): fix types in test_system_message (#34634)
style: bump ruff version to 0.14.11 (#34674)
fix: remove relative imports (#34680)
fix(langchain,langchain-classic): more descriptive error msg when dep is not installed (#34679)
fix(langchain): infer provider from mixed-case prefixes (#34672)
fix: add test confirming we don't inject args based on args_schema alone (#34677)
Fetched April 7, 2026