langchain-core==1.2.6

Changes since langchain-core==1.2.5

release(core): 1.2.6 (#34586) chore(core): Update LangChainTracer to use Pydantic v2 methods (#34541) docs(core): add docstrings to internal helper functions (#34525) docs(core): refresh content.py docstrings (#34546) chore(deps): bump mypy to v1.19 and ruff to v1.14 (#34521) refactor(core): fix some missing generic types (#31658) style(core): add ruff RUF012 rule (#34492) fix(core): support (message class, template) tuples in ChatPromptTemplate.from_messages (#33989) test(core): add regression test for list-index $ref resolution (#34097) fix(core): fix callback manager merge mixing handlers (#32028) (#33617) style: add ruff ISC001 rule (#34493) style(core): fix mypy no-any-return violations (#34204) docs(core): image url docstring enhancement (#34488) test(core): URL-encode bgColor parameter in mermaid.ink API calls (#34466) style(core): fix some noqa: ARG rules (#34437) fix(core): URL-encode bgColor in mermaid API calls (#34461) perf(core): move origin type map to module level in function_calling.py (#34481) style(core): add ruff rules TC (#34476) perf(core): precompile hex color regex pattern at module level (#34480) docs(core): update to indicate betas (#34457)