Releasesby GlyphLlamaIndex 0.14.18
Release Notes [2026-03-16] llama-index-agent-agentmesh [0.2.0] chore: deprecate python 3.9 once and for all ( #20956 ) llama-index-agent-azure [0.3.0] chore: deprecate python 3.9 once and for all ( #20956 ) llama-index-callbacks-agentops [0.5.0] chore: deprecate python 3.9 once and for all ( #20956 ) llama-index-callbacks-argilla [0.5.0] chore: deprecate...
Also shipped Mar 16, 2026LlamaIndex in March 2026 →
🤖 New LLM Models Support & Bug Fixes
We've added support for new LLM models in the Voice Agent API: OpenAI GPT-5.3 Instant ( gpt-5.3-chat-latest ) OpenAI GPT 5.4 ( gpt-5.4 ) Google Gemini 3.1 Flash Lite ( gemini-3.1-flash-lite-preview ) Example: { "type": "Settings", "agent": { "think": { "provider": { "type": "open_ai", "model": "gpt-5.3-chat-latest" } } } } For the full list of supported...
Metrics Open Beta Now Supports Alerting
Metrics, currently in open beta, now support creating alerts.
Persisting Table Filter in URL & Persisting Collapsed Card State in Experiment/Flags UI
What it is: Two state persistence improvements for Experiment and Feature Flags. Experiment table filters now encode into the URL, so filtering by status, tag, or owner produces a link you can bookmark or send to a teammate.
Targeting based on First Seen Timestamp
What it is: A built-in "First Seen" user property is now available in Guides and Surveys' remote evaluation. Cohort-based new user targeting has a reliability problem: membership updates run with a delay, so a brand-new user won't be included until after their first session has already passed.
Release of Mistral Small 4
Mistral Small 4 (mistral-small-2603) is a hybrid model that unifies instruct, reasoning, and coding capabilities in a single multimodal model with a 256k context window.
Release of Leanstral Code Agent
Leanstral (labs-leanstral-2603) is an open-source code agent designed for Lean 4 formal proof engineering.
More from LlamaIndexEvery LlamaIndex release →
LlamaIndex 0.14.16
Release Notes [2026-03-10] llama-index-core [0.14.16] Add token-bucket rate limiter for LLM and embedding API calls ( #20712 ) Fix/20706 chonkie init doc ( #20713 ) fix: pass tool_choice through FunctionCallingProgram ( #20740 ) feat: Multimodal LLMReranker ( #20743 ) feat: add optional embed_model to SemanticDoubleMergingSplitterNodeParser ( #20748 )...
LlamaIndex 0.14.19
Release Notes [2026-03-25] llama-index-agent-agentmesh [0.2.0] chore(deps): bump the uv group across 49 directories with 1 update ( #21083 ) llama-index-callbacks-argilla [0.5.0] chore(deps): bump the uv group across 3 directories with 1 update ( #21069 ) llama-index-core [0.14.19] fix: pass delete_from_docstore parameter in BaseIndex.delete_ref_doc (...
LlamaIndex 0.14.20
Release Notes [2026-04-03] llama-index-agent-agentmesh [0.2.0] fix vulnerability with nltk ( #21275 ) llama-index-callbacks-agentops [0.5.0] chore(deps): bump the uv group across 50 directories with 2 updates ( #21164 ) chore(deps): bump the uv group across 24 directories with 1 update ( #21219 ) chore(deps): bump the uv group across 21 directories with 2...
LlamaIndex 0.14.15
Release Notes [2026-02-18] llama-index-agent-agentmesh [0.1.0] [Integration] AgentMesh: Trust Layer for LlamaIndex Agents ( #20644 ) llama-index-core [0.14.15] Support basic operations for multimodal types ( #20640 ) Feat recursive llm type support ( #20642 ) fix: remove redundant metadata_seperator field from TextNode ( #20649 ) fix(tests): update mock...
LlamaIndex 0.14.21
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 ) chore(deps): bump the pip group across 68 directories with 2 updates ( #21394 ) llama-index-core [0.14.21] fix(core): prevent KeyError in DocumentSummaryIndex.delete_nodes when invalid node ID is provided (...
LlamaIndex 0.14.22
Release Notes [2026-05-14] llama-index-agent-agentmesh [0.2.0] mass uv lock --upgrade ( #21638 ) llama-index-callbacks-agentops [0.5.0] chore(deps): bump the pip group across 55 directories with 3 updates ( #21435 ) mass uv lock --upgrade ( #21638 ) llama-index-callbacks-aim [0.4.1] mass uv lock --upgrade ( #21638 ) llama-index-callbacks-argilla [0.5.0]...
LlamaIndex 0.14.23
Release Notes [2026-06-24] llama-index-callbacks-argilla [0.5.0] chore(deps): bump the uv group across 32 directories with 3 updates ( #21664 ) chore(deps): bump the uv group across 29 directories with 3 updates ( #21665 ) chore(deps): bump the uv group across 31 directories with 3 updates ( #21668 ) chore(deps): bump the pip group across 35 directories...
LlamaIndex 0.14.24
Release Notes [2026-08-19] llama-index-core [0.14.24] fix: close HotpotQA evaluator file handles ( #22113 ) fix(core): preserve oversized leaf nodes in CodeSplitter ( #22119 ) fix: preserve multiblock chat history writes ( #22124 ) fix(core): skip empty nodes in HTMLNodeParser ( #22125 ) fix(core): respect mmr_threshold=0 in MMR embedding search ( #22126 )...