chore(core): deprecate streamLog, streamEvents v1, RunnableWithMessageHistory and improve threat model verbiage for loads#10833
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🦋 Changeset detectedLatest commit: bd42d11 The changes in this PR will be included in the next version bump. This PR includes changesets to release 22 packages
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This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated. # Releases ## @langchain/core@1.1.45 ### Patch Changes - [#10833](#10833) [`6cf39fe`](6cf39fe) Thanks [@colifran](https://github.com/colifran)! - chore(core): deprecate streamLog, streamEvents v1, RunnableWithMessageHistory and improve threat model verbiage for loads - [#10835](#10835) [`0aebe50`](0aebe50) Thanks [@colifran](https://github.com/colifran)! - fix(core): deno re-declaration in LangSmith is causing unit test failures ## @langchain/anthropic@1.3.29 ### Patch Changes - [#10735](#10735) [`1a2a08a`](1a2a08a) Thanks [@chenzimin](https://github.com/chenzimin)! - feat(anthropic): add automatic prompt caching via top-level cache_control ## @langchain/aws@1.3.6 ### Patch Changes - [#10839](#10839) [`c0e8113`](c0e8113) Thanks [@hntrl](https://github.com/hntrl)! - fix(aws): map Bedrock prompt cache usage metadata to input token details Include `cacheReadInputTokens` and `cacheWriteInputTokens` from Bedrock Converse responses in `usage_metadata.input_token_details` for both invoke and stream metadata handling. Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Filip Żmijewski (FilipZmijewski)
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…essageHistory` and improve threat model verbiage for `loads` (langchain-ai#10833) ### Summary - Deprecate `streamEvents` v1 in favor of v2 (v1 callers see IDE strikethrough; version remains required for backwards compatibility) - Deprecate `streamLog` in favor of `.stream()` - Deprecate `RunnableWithMessageHistory` in favor of langgraph - Add threat model documentation to `load` module and function docstrings
Filip Żmijewski (FilipZmijewski)
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This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated. # Releases ## @langchain/core@1.1.45 ### Patch Changes - [langchain-ai#10833](langchain-ai#10833) [`6cf39fe`](langchain-ai@6cf39fe) Thanks [@colifran](https://github.com/colifran)! - chore(core): deprecate streamLog, streamEvents v1, RunnableWithMessageHistory and improve threat model verbiage for loads - [langchain-ai#10835](langchain-ai#10835) [`0aebe50`](langchain-ai@0aebe50) Thanks [@colifran](https://github.com/colifran)! - fix(core): deno re-declaration in LangSmith is causing unit test failures ## @langchain/anthropic@1.3.29 ### Patch Changes - [langchain-ai#10735](langchain-ai#10735) [`1a2a08a`](langchain-ai@1a2a08a) Thanks [@chenzimin](https://github.com/chenzimin)! - feat(anthropic): add automatic prompt caching via top-level cache_control ## @langchain/aws@1.3.6 ### Patch Changes - [langchain-ai#10839](langchain-ai#10839) [`c0e8113`](langchain-ai@c0e8113) Thanks [@hntrl](https://github.com/hntrl)! - fix(aws): map Bedrock prompt cache usage metadata to input token details Include `cacheReadInputTokens` and `cacheWriteInputTokens` from Bedrock Converse responses in `usage_metadata.input_token_details` for both invoke and stream metadata handling. Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Filip Żmijewski (FilipZmijewski)
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May 12, 2026
…essageHistory` and improve threat model verbiage for `loads` (langchain-ai#10833) ### Summary - Deprecate `streamEvents` v1 in favor of v2 (v1 callers see IDE strikethrough; version remains required for backwards compatibility) - Deprecate `streamLog` in favor of `.stream()` - Deprecate `RunnableWithMessageHistory` in favor of langgraph - Add threat model documentation to `load` module and function docstrings
Filip Żmijewski (FilipZmijewski)
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May 12, 2026
This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated. # Releases ## @langchain/core@1.1.45 ### Patch Changes - [langchain-ai#10833](langchain-ai#10833) [`6cf39fe`](langchain-ai@6cf39fe) Thanks [@colifran](https://github.com/colifran)! - chore(core): deprecate streamLog, streamEvents v1, RunnableWithMessageHistory and improve threat model verbiage for loads - [langchain-ai#10835](langchain-ai#10835) [`0aebe50`](langchain-ai@0aebe50) Thanks [@colifran](https://github.com/colifran)! - fix(core): deno re-declaration in LangSmith is causing unit test failures ## @langchain/anthropic@1.3.29 ### Patch Changes - [langchain-ai#10735](langchain-ai#10735) [`1a2a08a`](langchain-ai@1a2a08a) Thanks [@chenzimin](https://github.com/chenzimin)! - feat(anthropic): add automatic prompt caching via top-level cache_control ## @langchain/aws@1.3.6 ### Patch Changes - [langchain-ai#10839](langchain-ai#10839) [`c0e8113`](langchain-ai@c0e8113) Thanks [@hntrl](https://github.com/hntrl)! - fix(aws): map Bedrock prompt cache usage metadata to input token details Include `cacheReadInputTokens` and `cacheWriteInputTokens` from Bedrock Converse responses in `usage_metadata.input_token_details` for both invoke and stream metadata handling. Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
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Summary
streamEventsv1 in favor of v2 (v1 callers see IDE strikethrough; version remains required for backwards compatibility)streamLogin favor of.stream()RunnableWithMessageHistoryin favor of langgraphloadmodule and function docstrings