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PyPI · #3731 most downloaded on PyPI
Standard tests for LangChain implementations
Last release 4 months ago
21 May 2026
Ships fairly regularly
a new release about every 3 weeks
Nearly every release is documented
notes for 35 of 36 stable releases
Nothing withdrawn
no release was ever pulled
2 years old
39 releases · first in 2024
One column per month.
Changes since langchain-tests==1.1.8
Changes since langchain-tests==1.1.8
release(standard-tests): 1.1.9 (#37609) test(standard-tests): allow extra content blocks in streaming assertions (#37592) chore: bump idna from 3.11 to 3.15 in /libs/standard-tests (#37536) chore: bump the minor-and-patch group across 3 directories with 15 updates (#37515) ci(infra): harden Dependabot version-bound preservation (#37510)
Changes since langchain-tests==1.1.7
Changes since langchain-tests==1.1.7
hotfix(standard-tests): set langchain-core version bounds (#37509)
hotfix: bump lockfiles (#37508)
release(standard-tests): 1.1.8 (#37507)
test(standard-tests): assert ls_model_name honors per-call model override (#37504)
chore(core,langchain,openai): refresh stale OpenAI model references (#37487)
chore: bump langsmith from 0.7.31 to 0.8.0 in /libs/standard-tests (#37381)
chore(infra): merge v1.4 into master (#37350)
chore: bump urllib3 from 2.6.3 to 2.7.0 in /libs/standard-tests (#37324)
chore: bump langchain-core from 1.3.2 to 1.3.3 in /libs/standard-tests (#37253)
chore: bump types-pyyaml from 6.0.12.20250915 to 6.0.12.20260408 in /libs/standard-tests (#37125)
chore(docs): update x handle references (#37081)
Changes since langchain-tests==1.1.6
Changes since langchain-tests==1.1.6
release(standard-tests): 1.1.7 (#37067)
hotfix: bump min core versions (#36996)
feat(core): add content-block-centric streaming (v2) (#36834)
chore: bump langsmith from 0.6.3 to 0.7.31 in /libs/standard-tests (#36799)
chore(deps): bump pytest to 9.0.3 (#36801)
chore: bump pytest from 9.0.2 to 9.0.3 in /libs/standard-tests (#36715)
…chore: pygments>=2.20.0 across all packages (CVE-2026-4539) (#36385) chore: bump requests from 2.32.5 to 2.33.0 in /libs/standard-tests (#36239) ci: s…
Changes since langchain-tests==1.1.5
release(standard-tests): 1.1.6 (#36610) fix(standard-tests): update standard tests for sandbox backends (#36036) chore: pygments>=2.20.0 across all packages (CVE-2026-4539) (#36385) chore: bump requests from 2.32.5 to 2.33.0 in /libs/standard-tests (#36239) ci: suppress pytest streaming output in CI (#36092) ci: avoid unnecessary dep installs in lint targets (#36046) chore: bump locks, lint (#35985) chore: bump orjson from 3.11.5 to 3.11.6 in /libs/standard-tests (#35804) perf(.github): set a timeout on get min versions HTTP calls (#35851) chore: bump the minor-and-patch group across 3 directories with 3 updates (#35589) chore: bump the other-deps group across 3 directories with 2 updates (#35512) chore: bump the other-deps group across 3 directories with 2 updates (#35407) style: fix some ruff noqa (#35321)
Changes since langchain-tests==1.1.4
Changes since langchain-tests==1.1.4
chore: bump the other-deps group across 3 directories with 2 updates (#35255) style: bump ruff version to 0.15 (#35042) chore(deps): bump langsmith from 0.4.56 to 0.6.3 in /libs/standard-tests (#35157) release(standard-tests): release 1.1.5 (#35139) chore(deps): bump the other-deps group across 3 directories with 12 updates (#35127) chore(deps): bump the other-deps group across 3 directories with 8 updates (#35120) chore(standard-tests): test suite for sandbox only (#35111)
Nothing published for this version
Dec 8, 2025
Dec 8, 2025
Changes since langchain-tests==1.1.1
Changes since langchain-tests==1.1.1
release(standard-tests): 1.1.2 (#34507) style(text-splitters,standard-tests,cli): add ruff TC and RUF012 rules (#34495) style: add ruff ISC001 rule (#34493) fix(core): serialization patch (#34455)
Changes since langchain-tests==1.1.0
Changes since langchain-tests==1.1.0
release(standard-tests): 1.1.1 (#34393) docs(standard-tests): throw more descriptive errors for some streaming cases (#34389)
…(#34224) fix(standard-tests)!: remove deprecated has_tool_choice property (#34174) docs(standard-tests): ensure first admonition is expanded (#34194)…
Changes since langchain-tests==1.0.2
release(standard-tests): 1.1.0 (#34331)
chore(standard-tests): enable mypy disallow_any_generics rule (#34222)
refactor(standard-tests): improve VCR config (#33968)
feat(standard-tests): invocation model override (#34170)
feat(standard-tests): ensure only one chunk sets model_name in usage_metadata (#34224)
fix(standard-tests)!: remove deprecated has_tool_choice property (#34174)
docs(standard-tests): ensure first admonition is expanded (#34194)
docs(standard-tests): fix supports_json_mode docstring (#34181)
docs(standard-tests): fix formatting bug, rearrange admonition (#34180)
docs(standard-tests): enrich doc to indicate missing default values (#34179)
docs(standard-tests): improve doc for structured_output_kwargs and supports_json_mode (#34178)
fix(standard-tests): fix broken links (#34175)
fix(standard-tests): remove broken code block docstring title (#34173)
style(standard-tests): some fencing (#34171)
Changes since langchain-tests==1.0.1
Changes since langchain-tests==1.0.1
release(standard-tests): 1.0.2 (#34071) chore(docs): fix a few refs syntax errors (#34044) feat(anthropic): support native structured output feature and strict tool calling (#33980) style(langchain): fix some middleware ref syntax (#33988) chore(cli,standard-tests,text-splitters): fix some ruff TC rules (#33934) style: some cleanup (#33857) chore: attribute package change versions (#33854) style(standard-tests): refs pass (#33814) style: refs pass (#33813)
Changes since langchain-tests==1.0.0
Changes since langchain-tests==1.0.0
release(standard-tests): 1.0.1 (#33792)
fix(standard-tests): update multimodal tests (#33781)
style: more refs fixes (#33730)
chore(standard-tests): Update API reference link in README (#33714)
style: more refs work (#33707)
fix: links (#33691)
fix(standard-tests): fix tool description in agent loop test (#33690)
style: more refs work (#33616)
chore: update pyproject.toml url entries (#33587)
fix: support python 3.14 in various projects (#33575)
…pdm -> hatchling (#33289) chore: delete deprecated items (#33192) docs: v1 docs updates (#33173) release(standard-tests): 1.0.0a2 (#33219) docs(standa…
Changes since langchain-tests==0.3.22
release(standard-tests): 1.0.0 (#33563)
docs: more fixes for refs (#33554)
release(standard-tests): 1.0.0rc1 (#33531)
style: more work for refs (#33508)
docs: update package READMEs (#33488)
feat(standard-tests): parametrize tool calling test (#33496)
fix(fireworks): parse standard blocks in input (#33426)
style: llm -> model (#33423)
style: fix tables, capitalization (#33417)
style: .. code-block:: admonition translations (#33400)
fix(standard-tests): update Anthropic inputs test (#33391)
style: address Sphinx double-backtick snippet syntax (#33389)
chore: update Sphinx links to markdown (#33386)
style: remove more Optional syntax (#33371)
style: monorepo pass for refs (#33359)
chore: enrich pyproject.toml files with links to new references, others (#33343)
chore: clean up pyproject.toml files, use core a7 (#33334)
fix(standard-tests,openai): minor fix for Responses API tests (#33315)
feat(standard-tests): enable parametrization of output_version (#33301)
chore(infra): pdm -> hatchling (#33289)
chore: delete deprecated items (#33192)
docs: v1 docs updates (#33173)
release(standard-tests): 1.0.0a2 (#33219)
docs(standard-tests): add clarity to docstrings (#33218)
release: v1.0.0 (#32567)
Oct 17, 2025
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