{"version":"1.0","generated_at":"2026-10-05T17:24:04.052132","id":296,"slug":"langchain-perplexity-1-2-0","title":"版本更新：langchain-ai/langchain 1.2.0，提升开发者接入体验","summary":"langchain-perplexity 发布1.2.0版本，新增PerplexityEmbeddings、内容块流等特性，并修复多个依赖安全问题，显著提升开发者集成体验。","abstract":"版本更新：langchain-ai/langchain 1.2.0，提升开发者接入体验 langchain-perplexity 发布1.2.0版本，新增PerplexityEmbeddings、内容块流等特性，并修复多个依赖安全问题，显著提升开发者集成体验。 新增PerplexityEmbeddings，支持文本嵌入功能 添加内容块流v2，优化流式处理性能 修复pygments等依赖的CVE安全漏洞 标准化集成测试调用，提升开发效率 更新模型配置文件字段，便于成本优化 自 langchain-perplexity==1.1.0 版本（perplexity）以来的变化：1.2.0（#37091）壮举（perplexity）：添加 PerplexityEmbeddings（#37082）杂务（文档）：更新 x 句柄引用（#37081）修补程序：凹凸最小核心版本（#36996）壮举（核心）：添加以内容块为中心的流（v2）（ ＃36834）hotfix（ci）：删除nobenchmark标志（＃36959）chore（partners）：标准化集成测试调用（＃36958）chore（deps）：将pytest提升到9.0.3（＃36801）chore：将/libs/partners/perplexity中的langsmith从0.6.3提升到0.7.31（＃36785）杂务：将 /libs/partners/perplexity 中的 12.1.1 撞到 12.2.0 (#36778) 杂务：添加注释解释 pygments>=2.20.0 (#36570) 杂务：所有包中的 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