Bump langchain from 1.2.13 to 1.2.15

[dependabot]

Bumps langchain from 1.2.13 to 1.2.15.

Release notes

Sourced from langchain's releases.

langchain-core==1.2.15

Changes since langchain-core==1.2.14

fix(core): improve error message for non-JSON-serializable tool schemas (#34376) fix(core): improve typing/docs for on_chat_model_start to clarify required positional args (#35324) perf(core): defer specific langsmith imports to reduce import time (#35298) revert: add ChatAnthropicBedrockWrapper (#35371) release(core): 1.2.15 (#35367) fix(anthropic): replace retired model IDs in tests and docstrings (#35365) feat(anthropic): add ChatAnthropicBedrock wrapper (#35091) style: fix some ruff noqa (#35321)

langchain==1.2.15

Changes since langchain==1.2.14

release: langchain v1.2.15 (#36496) chore: bump aiohttp from 3.13.3 to 3.13.4 in /libs/langchain_v1 (#36438)

langchain-core==1.2.14

Changes since langchain-core==1.2.13

release(core): 1.2.14 (#35328) chore(core): remove langserve from sys info util, add deepagents (#35325) fix(core): fix merge_lists incorrectly merging parallel tool calls (#35281) fix(core): accept int temperature in _get_ls_params for LangSmith tracing (#35302) revert: accept integer temperature values in _get_ls_params (#35319) fix(core): accept integer temperature values in _get_ls_params (#35317) docs(core): update load note to be precise (#35309) fix(core): prevent recursion error when args_schema is dict (#35260) fix(core): preserve index and timestamp fields when merging (#34731) docs(core): add security warnings and best practices for deserialization (#35282) docs: fix docstring inaccuracies and update outdated LangSmith URLs (#35283) fix(core): correct misleading jinja2 sandboxing comment (#35183) chore: bump the langchain-deps group across 3 directories with 8 updates (#35257)

langchain==1.2.14

Changes since langchain==1.2.13

release(langchain): 1.2.14 (#36396) chore: pygments>=2.20.0 across all packages (CVE-2026-4539) (#36385) test(langchain): cover runtime recursion limit override in create_agent (#36376) perf(langchain): reduce init speed by 15% (#36375) fix(langchain): update recursion limit for create_agent (#36351) fix(infra): correct lint_diff relative paths in package makefiles (#36333) chore: bump cryptography from 46.0.5 to 46.0.6 in /libs/langchain_v1 (#36324) fix(langchain): recognize ChatAnthropicVertex in _get_approximate_token_counter (#36320) chore(langchain): remove unnecessary description for toods list as a group (#36315) chore(langchain): add async implementation to todolist and test (#36313) chore(langchain): speed up todo list middleware init (#36311) chore: bump requests from 2.32.5 to 2.33.0 in /libs/langchain_v1 (#36241)

... (truncated)

Commits

• dd63731 release: langchain v1.2.15 (#36496)
• d1529dd fix(core): correct parameter names in filter_messages docstring example (#36462)
• e89afed release(core): 1.2.25 (#36473)
• 0b5f2c0 fix(core): harden check for txt files in deprecated prompt loading functions ...
• c9f51ae fix(core): fixed typos in the documentation (#36459)
• cd394b7 chore(model-profiles): refresh model profile data (#36455)
• 34c4a2a chore: bump aiohttp from 3.13.3 to 3.13.4 in /libs/partners/huggingface (#36436)
• 914cef0 chore: bump aiohttp from 3.13.3 to 3.13.4 in /libs/partners/xai (#36435)
• 66ad4f7 chore: bump aiohttp from 3.13.3 to 3.13.4 in /libs/langchain (#36439)
• 8fb12b8 chore: bump aiohttp from 3.13.3 to 3.13.4 in /libs/partners/fireworks (#36437)
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