agents-software
LangChain 1.0.53 now requires LangSmith 0.11.0 or higher.
LangChainTracer now supports explicit agent addresses, integrating project and address destinations.
1 sources · 1 verified claimsAI knowledge entity
Langchainjs
One evolving timeline of verified developments, without duplicating the underlying truth across pages.
8 verified events1 verified sourceUpdated 16 Oct 2026
Verified timeline
Developments connected to this entity
agents-software
The MCPClientError now includes the SSE attempt's SDK error as its cause.
The MCPClientError now retains the original SDK error when an HTTP connection falls back to SSE.
1 sources · 1 verified claimsagents-software
The LangChain library now retries failed tool calls in createAgent.
The "createAgent" function now retries failed tool calls. Error messages from tools now include a status of "error".
1 sources · 1 verified claimsagents-software
OpenRouter 0.4.15 updates OpenAI dependency to 1.6.0
The OpenRouter library updated dependencies to OpenAI version 1.6.0.
1 sources · 1 verified claimsagents-software
The Anthropic library now accepts SystemMessages at any position in the message list.
The update allows system messages to be placed anywhere in the conversation. Multiple leading system messages are now merged instead of rejected.
1 sources · 1 verified claimsagents-software
Google's Langchain Adds Gemini Function-Calling Support
The latest LangChain update supports Gemini's validated function-calling mode.
1 sources · 1 verified claimsagents-software
LangChain v1.5.13 fixes OpenAI API replay for responses with multiple reasoning items.
The OpenAI Responses API replay now preserves reasoning item order in v0 and fixes content blocks in v1.
1 sources · 1 verified claimsagents-software
LangChain AWS Adds Claude Model Variants to Supported Tool Choices
The AWS LangChain library v1.4.5 now supports Claude-Sonnet-5, Claude-Opus-5, and Claude-Haiku-5.
1 sources · 1 verified claims