Migrating to LlamaIndex v0.14.21
Version v0.14.21 introduces 1 breaking change. This guide details how to update your code.
Released: 4/21/2026
1
Breaking Changes
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Migration Steps
1
Affected Symbols
⚠️ Check Your Code
If you use any of these symbols, you need to read this guide:
DocumentSummaryIndex.delete_nodesBreaking Changes
●Issue #1
A breaking change in Message Block Buffer Resolution was fixed in llama-index-core, which might affect how message blocks were previously handled.
Release Summary
This release primarily focuses on dependency bumps across numerous packages and includes critical bug fixes in llama-index-core related to node deletion and structured output handling. A breaking change related to message block resolution was also addressed.
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View the full release notes and all changes for LlamaIndex v0.14.21.
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