Historical brief · 2026-11-14

LlamaIndex v0.14.26 Release: Security Fixes and Dependency Updates Across Integrations

This release brings important security updates and dependency locks across numerous LlamaIndex integration packages. It addresses underlying vulnerabilities by relocking Python uv.lock files and lifting Python requirements, while resolving a deprecation issue for the LangChain bridge in the core package.

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Overview of v0.14.26

The LlamaIndex v0.14.26 release focuses primarily on maintenance, security hardening, and cross-integration consistency. It rolls out updates to a vast array of callback handlers, embedding providers, graph stores, and managed indices.

Key Security and Core Updates

A major focus of this release is executing a Python security relock across integration uv.lock files without altering the base Python floors where unnecessary. Additionally, breaking changes were introduced to raise requires-python specifications for security fixes across various integrations. In the llama-index-core package, a fix was implemented to resolve a deprecation issue that was breaking LangChain bridge imports.

View selection rationale
Open sourceStage not established

Importance 48/100

Signal40Structure50Consequence55Confidence88Momentum60
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