sentence-transformers breaking changes
Every breaking API change we have recorded in sentence-transformers on PyPI: 101 breaking changes in 1 version. Below are its newest version, removals and renames first, each with its source.
Newest change August 18, 2026

On this page
6.0.0
- Removed
sentence_transformers.sentence_transformer.losses.cached_gist_embed.is_dist_initialized
sentence_transformers.sentence_transformer.losses.cached_gist_embed.is_dist_initialized was removed in sentence-transformers 6.0.0 pypi.org - Removed
sentence_transformers.sentence_transformer.losses.cached_multiple_negatives_ranking.is_dist_initialized
sentence_transformers.sentence_transformer.losses.cached_multiple_negatives_ranking.is_dist_initialized was removed in sentence-transformers 6.0.0 pypi.org - Removed
sentence_transformers.sentence_transformer.losses.cached_multiple_negatives_ranking.util
sentence_transformers.sentence_transformer.losses.cached_multiple_negatives_ranking.util was removed in sentence-transformers 6.0.0 pypi.org - Removed
sentence_transformers.sentence_transformer.losses.distill_kl_div.util
sentence_transformers.sentence_transformer.losses.distill_kl_div.util was removed in sentence-transformers 6.0.0 pypi.org - Removed
sentence_transformers.sentence_transformer.losses.gist_embed.is_dist_initialized
sentence_transformers.sentence_transformer.losses.gist_embed.is_dist_initialized was removed in sentence-transformers 6.0.0 pypi.org - Removed
sentence_transformers.sentence_transformer.losses.margin_mse.util
sentence_transformers.sentence_transformer.losses.margin_mse.util was removed in sentence-transformers 6.0.0 pypi.org - Removed
sentence_transformers.sentence_transformer.losses.multiple_negatives_ranking.is_dist_initialized
sentence_transformers.sentence_transformer.losses.multiple_negatives_ranking.is_dist_initialized was removed in sentence-transformers 6.0.0 pypi.org - Removed
sentence_transformers.sentence_transformer.losses.multiple_negatives_ranking.util
sentence_transformers.sentence_transformer.losses.multiple_negatives_ranking.util was removed in sentence-transformers 6.0.0 pypi.org - Removed
sentence_transformers.sentence_transformer.modules.normalize
sentence_transformers.sentence_transformer.modules.normalize was removed in sentence-transformers 6.0.0 pypi.org - Removed
sentence_transformers.sparse_encoder.losses.sparse_distill_kl_div.util
sentence_transformers.sparse_encoder.losses.sparse_distill_kl_div.util was removed in sentence-transformers 6.0.0 pypi.org
And 91 more in this version.
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These are the changes. To see which of them reach your code, scan a public repository, or have your coding agent call check_code with your manifest or lockfile over MCP. The API reads every change in every version, not only the newest. On Team and up, a fix pull request opens for the changes that reach a connected repository. Nothing merges or deploys.

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