langchain-perplexity==1.4.1

Summary

Changes since langchain-perplexity==1.4.0 release(perplexity): 1.4.1 ( #39826 ) fix(perplexity): include type="message" on Responses input items ( #39774 ) fix(perplexity): preserve caller extra_body ( #39203 ) chore: bump pillow from 12.2.0 to 12.3.0 in /libs/partners/perplexity ( #38991 ) chore(deps): refresh lockfiles ( #38746 ) fix(perplexity): use supported Responses API model ( #38337 ) chore: bump vcrpy from 8.1.1 to 8.2.1 in /libs/partners/perplexity ( #38290 ) chore: bump langsmith from 0.8.5 to 0.8.18 in /libs/partners/perplexity ( #38289 ) docs: refresh README installation and resources ( #38119 ) release(core): 1.4.7 ( #38111 ) fix(core,partners): rename package version trace metadata ( #38110 ) style(core,langchain,langchain-classic,partners): replace double backticks in docstrings ( #38095 ) release(core): 1.4.6 ( #38061 ) feat(core,partners): add package version tracking to tracing metadata ( #35295 ) chore(infra): bump mypy to 2.1 and unify type-check config across the monorepo ( #36470 ) feat(standard-tests): validate tool call chunks during streaming ( #34707 ) chore(partners): bump locks ( #38052 )

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