PyPI
sentence-transformers
Embeddings, Retrieval, and Reranking
Transformer NetworksBERTXLNetsentence embeddingPyTorchNLPdeep learning
github.com/huggingface/sentence-transformerswww.SBERT.netApache-2.0Nils Reimers, Tom Aarsen5.2M / week19.2k · 3k forks · 358 contributors
Release cadenceEvery 3 weeks
Last releaseOct 21, 2026
Open advisories0
Changelog quality96% curated
GitHub Releases, gaps for some releases
Release history SecurityYou're on
43 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionsentence-transformers 5 → 65.7.0 → 6.2.0Oct 21, 2026 BreakingBreaking15Platform3Deprecated1New45Changed57Fixed157Other55sentence-transformers 4 → 54.1.0 → 5.7.0Aug 6, 2026 BreakingBreaking4Security3Platform1Deprecated2New40Changed280Fixed108Other101sentence-transformers 3 → 43.4.1 → 4.1.0Apr 15, 2025 UnknownNew12Changed39Fixed15Other50sentence-transformers 2 → 32.7.0 → 3.4.1Jan 29, 2025 Unknownsentence-transformers 1 → 21.2.1 → 2.7.0Apr 17, 2024 Unknownsentence-transformers 0.4 → 10.4.1.2 → 1.2.1Jun 24, 2021 Unknownsentence-transformers 0.3 → 0.40.3.9 → 0.4.1.2Jan 4, 2021 Unknownsentence-transformers 0.2 → 0.30.2.6.2 → 0.3.9Nov 18, 2020 Unknownsentence-transformers 0.1 → 0.20.1.0 → 0.2.6.2Jun 30, 2020 Unknown
VersionChannelDateChangesSecurity
6.2.0 StableOct 21, 2026Breaking3Platform2Deprecated1New10Changed24Fixed143Other306.1.0 youStableSep 18, 2026Changed1Other36.0.1 StableAug 31, 2026Fixed2Other46.0.0 StableAug 18, 2026Breaking12Platform1New35Changed32Fixed12Other195.7.0 StableAug 6, 2026Breaking3Security2Deprecated1New3Changed16Fixed61Other165.6.1 StableJul 23, 2026Changed3Fixed4Other25.6.0 StableJun 16, 2026Security1Changed38Fixed9Other8Fix5.5.1 StableMay 20, 2026Changed15.5.0 StableMay 12, 2026New3Changed38Fixed145.4.1 StableApr 14, 2026Fixed2Other45.4.0 StableApr 9, 2026New6Changed11Fixed2Other135.3.0 StableMar 12, 2026New4Changed64Fixed7Other205.2.3 StableFeb 17, 2026Changed15.2.2 StableJan 27, 2026Changed15.2.1 StableJan 26, 2026Changed35.2.0 StableDec 11, 2025Platform1Deprecated1New1Changed17Fixed1Other105.1.2 StableOct 22, 2025Changed235.1.1 StableSep 22, 2025New2Changed14Fixed55.1.0 StableAug 6, 2025Breaking1New7Changed32Fixed4Other125.0.0 StableJul 1, 2025New14Changed26Other18