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fix streaming for advisor server_tool_use blocks

hntrl/anthropic/sonnet-55

2 hours ago

fix(anthropic): replay decoded advisor result without SDK extras Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>

hntrl/anthropic/sonnet-55

3 hours ago

refactor(anthropic): defer Sonnet tool choice and thinking errors to API Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>

hntrl/anthropic/sonnet-55

3 hours ago

fix(anthropic): retain Sonnet 5.5 profile capability augmentations Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>

hntrl/anthropic/sonnet-55

3 hours ago

release(langchain): 1.4.3 (#40888) Prepare the `langchain` 1.4.3 patch release. Bumps package metadata and the lockfile from 1.4.2; no dependency changes or publishing are performed by this PR. ### PRs included since 1.4.2 - [#40886](https://github.com/langchain-ai/langchain/pull/40886): Sanitize cache settings for fallback models. - [#40837](https://github.com/langchain-ai/langchain/pull/40837): Support Bedrock Mantle chat models in `init_chat_model`. - [#40844](https://github.com/langchain-ai/langchain/pull/40844): Recognize GPT-6 structured output without profiles. - [#40530](https://github.com/langchain-ai/langchain/pull/40530): Repair invalid tool calls in `create_agent`. - [#40713](https://github.com/langchain-ai/langchain/pull/40713): Remove the commented-out Cohere extra. - [#40626](https://github.com/langchain-ai/langchain/pull/40626): Bump locked AnyIO from 4.11.0 to 4.14.2. - [#40794](https://github.com/langchain-ai/langchain/pull/40794): Correct repository setup guidance and package documentation. Made by [Open SWE](https://github.com/langchain-ai/open-swe) · [view thread](https://openswe.langchain.dev/agents/c2dee156-b2b1-573e-8f59-e498d251ae49) · openai:gpt-6-astra (medium) Co-authored-by: Mason Daugherty <mdrxy@users.noreply.github.com> Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>

master

6 hours ago

release(langchain): 1.4.3 Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>

release/langchain-1.4.3

6 hours ago

fix(langchain): sanitize cache settings for fallback models (#40886) `ModelFallbackMiddleware` now removes unsupported cache keys and Fireworks session-affinity headers before fallback attempts, while preserving cache settings supported by the selected fallback model. --- When an agent falls back to another provider, explicitly supplied cache settings in `ModelRequest.model_settings` can reach a model that does not accept them and cause the fallback to fail. `ModelFallbackMiddleware` now removes `x-session-affinity` for non-Fireworks fallbacks and removes `prompt_cache_key` for providers outside Fireworks, OpenAI, and Azure OpenAI. It preserves unrelated settings and headers, retains the existing Anthropic cache-marker handling, and leaves the original request unchanged. Unit tests cover synchronous and asynchronous fallback, supported cache-key preservation, and header cleanup. Stacked on #38823. This PR contains only the fallback cleanup and its tests. The Fireworks middleware in the base PR works independently because its generated affinity is consumed directly by `ChatFireworks`. Review focus: provider support is determined through `_llm_type`; `prompt_cache_key` is shared by multiple providers and must not be treated as Fireworks-only.

master

6 hours ago

fix(langchain): sanitize cache settings for fallback models

mdrxy/langchain/fallback-cache-settings

6 hours ago

Latest Branches

0%

fix(anthropic): support Claude Sonnet 5.5 compatibility#40882

2 hours ago

c04964a

hntrl/anthropic/sonnet-55

0%

release(langchain): 1.4.3#40888

6 hours ago

68337e8

release/langchain-1.4.3

0%

fix(langchain): sanitize cache settings for fallback models#40886

7 hours ago

80a7fb5

mdrxy/langchain/fallback-cache-settings

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