# LlamaIndex v0.14.21

- Product: LlamaIndex (https://whatsnew.fyi/product/llamaindex)
- Vendor: LlamaIndex
- Date: 2026-04-21
- Version: v0.14.21
- Original notes: https://github.com/run-llama/llama_index/releases/tag/v0.14.21
- Permalink: https://whatsnew.fyi/product/llamaindex/releases/v0.14.21

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **fixed** — prevent KeyError in DocumentSummaryIndex.delete_nodes when invalid node ID is provided
- **fixed** — handle ValueError and TypeError from structured output failures
- **fixed** — add explicit UTF-8 encoding to persistence layer fs.open() calls
- **fixed** — fix breaking change in message block buffer resolution
- **added** — add http client support to embeddings-nvidia

#### Release Notes

##### [2026-04-21]

###### llama-index-callbacks-honeyhive [0.5.0]

- chore(deps): bump the pip group across 87 directories with 2 updates ([#21382](https://github.com/run-llama/llama_index/pull/21382))
- chore(deps): bump the pip group across 68 directories with 2 updates ([#21394](https://github.com/run-llama/llama_index/pull/21394))

###### llama-index-core [0.14.21]

- fix(core): prevent `KeyError` in `DocumentSummaryIndex.delete_nodes` when invalid node ID is provided ([#21067](https://github.com/run-llama/llama_index/pull/21067))
- fix(core): handle `ValueError` and `TypeError` from structured output failures ([#21090](https://github.com/run-llama/llama_index/pull/21090))
- fix: add explicit UTF-8 encoding to persistence layer fs.open() calls ([#21111](https://github.com/run-llama/llama_index/pull/21111))
- Fix Breaking Change in Message Block Buffer Resolution ([#21339](https://github.com/run-llama/llama_index/pull/21339))
- chore(deps): bump the pip group across 87 directories with 2 updates ([#21382](https://github.com/run-llama/llama_index/pull/21382))
- chore(deps): bump the pip group across 68 directories with 2 updates ([#21394](https://github.com/run-llama/llama_index/pull/21394))

###### llama-index-embeddings-huggingface-optimum [0.4.1]

- chore(deps): bump the pip group across 96 directories with 2 updates ([#21381](https://github.com/run-llama/llama_index/pull/21381))

###### llama-index-embeddings-nvidia [0.5.1]

- feat(embeddings-nvidia): add http client support ([#21046](https://github.com/run-llama/llama_index/pull/21046))

###### llama-index-embeddings-oracleai [0.4.0]

- chore(deps): bump the pip group across 96 directories with 2 updates ([#21381](https://github.com/run-llama/llama_index/pull/21381))

###### llama-index-embeddings-premai [0.5.0]

- chore(deps): bump the pip group across 96 directories with 2 updates ([#21381](https://github.com/run-llama/llama_index/pull/21381))
- chore(deps): bump the pip group across 87 directories with 2 updates ([#21382](https://github.com/run-llama/llama_index/pull/21382))
- chore(deps): bump the pip group across 68 directories with 2 updates ([#21394](https://github.com/run-llama/llama_index/pull/21394))

###### llama-index-embeddings-text-embeddings-inference [0.5.0]

- chore(deps): bump the pip group across 96 directories with 2 updates ([#21381](https://github.com/run-llama/llama_index/pull/21381))

###### llama-index-embeddings-textembed [0.4.0]

- chore(deps): bump the pip group across 96 directories with 2 updates ([#21381](https://github.com/run-llama/llama_index/pull/21381))

###### llama-index-embeddings-together [0.5.0]

- chore(deps): bump the pip group across 96 directories with 2 updates ([#21381](https://github.com/run-llama/llama_index/pull/21381))

###### llama-index-embeddings-upstage [0.6.1]

- chore(deps): bump the pip group across 96 directories with 2 updates ([#21381](https://github.com/run-llama/llama_index/pull/21381))
- chore(deps): bump the pip group across 87 directories with 2 updates ([#21382](https://github.com/run-llama/llama_index/pull/21382))
- chore(deps): bump the pip group across 68 directories with 2 updates ([#21394](https://github.com/run-llama/llama_index/pull/21394))

###### llama-index-embeddings-vertex [0.5.0]

- chore(deps): bump the pip group across 96 directories with 2 updates ([#21381](https://github.com/run-llama/llama_index/pull/21381))

###### llama-index-embeddings-vertex-endpoint [0.4.0]

- chore(deps): bump the pip group across 96 directories with 2 updates ([#21381](https://github.com/run-llama/llama_index/pull/21381))

###### llama-index-embeddings-vllm [0.1.1]

- chore(deps): bump the pip group across 96 directories with 2 updates ([#21381](https://github.com/run-llama/llama_index/pull/21381))

###### llama-index-embeddings-voyageai [0.6.0]

- chore(deps): bump the pip group across 96 directories with 2 updates ([#21381](https://github.com/run-llama/llama_index/pull/21381))

###### llama

_[Truncated at 4000 characters — full notes: https://github.com/run-llama/llama_index/releases/tag/v0.14.21]_