Agent InfrastructureAutomated release watch

langchain-perplexity==1.4.2

langchain-perplexity 1.4.2 includes fixes for Agent API search results, Responses API cache token mapping, and stream context sizing, alongside dependency updates.

Human read

Why this signal matters

The langchain-perplexity package has been updated to version 1.4.2. Key changes include bug fixes for the Perplexity integration: preserving Agent API search results, mapping Responses API cache tokens into input token details, and emitting search context size only once per stream in astream. Additionally, model profile data was refreshed, documentation examples for the Agent API were updated, and several dependencies (certifi, urllib3, anyio) were bumped.

Agent parse

Actionable summary

Upgrade to langchain-perplexity 1.4.2 fixes Agent API search result preservation, correctly maps Responses API cache tokens into input token details, and emits search context size once per stream in astream.

Agent usefulness
77/100
Confidence
96%
Canonical data
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Next actions

What builders should check

  • Upgrade langchain-perplexity to version 1.4.2 if using Perplexity Agent API search results or streaming search context sizes.
Classification

Tags and routing

langchaintoolsorchestration
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