langchain-perplexity==1.4.2

Summary

Changes since langchain-perplexity==1.4.1 release(perplexity): 1.4.2 ( #41392 ) chore(model-profiles): refresh model profile data ( #41354 ) chore(deps): bump certifi from 2025.8.3 to 2026.10.19 in /libs/partners/perplexity ( #41377 ) fix(perplexity): preserve Agent API search results ( #41349 ) fix: fix dependencies in some partner packages ( #41266 ) chore(deps): bump urllib3 from 2.7.0 to 2.8.0 in /libs/partners/perplexity ( #40947 ) chore(deps): bump anyio from 4.11.0 to 4.14.2 in /libs/partners/perplexity ( #40633 ) fix(perplexity): map Responses API cache tokens into input_token_details ( #39923 ) fix(perplexity): emit search_context_size once per stream in _astream ( #39924 ) docs(perplexity): update ChatPerplexity docstring examples for Agent API ( #39831 )

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