PyPI · #2759 most downloaded on PyPI

hdbscan

0.8.442.2M downloads/moscikit-learn-contrib/hdbscan ↗New releases in your daily digest, changelog included.

Clustering based on density with variable density clusters

Last release 4 months ago
01 Jun 2026
Release timing varies
gaps range from 2 weeks to 13 months
Some releases are documented
notes for 27 of 60 stable releases
Nothing withdrawn
no release was ever pulled
11 years old
61 releases · first in 2015

Release timeline

61 releases since 2015

20152017201920212023

Releases

0.8.441 Jun 2026
Optimize get_stability_scores: O(n) bincount replaces O(k*n) loop by @sebastianbreguel in #709
What's Changed

Optimize get_stability_scores: O(n) bincount replaces O(k*n) loop by @sebastianbreguel in #709

Optimize do_labelling: O(1) array lookups replace O(n*T) linear scans by @sebastianbreguel in #708

Reduce mutual_reachability peak memory by 51% via in-place ops by @sebastianbreguel in #711

Vectorize _remap_edge_lists and _remap_point_lists: 6-14x faster by @sebastianbreguel in #712

Optimize gen_min_span_tree: set lookups replace O(n^2) array copies by @sebastianbreguel in #710

Vectorize relative_validity_: ~800x speedup replacing Pandas iterrows by @sebastianbreguel in #715

Optimize get_clusters: O(1) dict lookups replace O(T) array scans by @sebastianbreguel in #714

Optimize mst_linkage_core: 3-4x speedup via in-place C pointers by @sebastianbreguel in #713

Track MST source nodes in Cython, eliminate O(n²) reconstruction by @sebastianbreguel in #719

Optimize condense_tree: pre-allocated buffers ~20% faster by @sebastianbreguel in #717

Optimize simplify_hierarchy: O(C²) → O(C) prefix sum by @sebastianbreguel in #716

Replace per-cluster tree scans with a single grouped reduction by @sebastianbreguel in #720

Compute the cluster-walk child mask once per step by @sebastianbreguel in #723

Build cluster exemplars with a single hstack by @sebastianbreguel in #722

Speed up the cluster-tree walk-up in approximate_predict by @sebastianbreguel in #725

Add 3.14 builds to pipeline by @gclendenning in #707

New Contributors

@sebastianbreguel made their first contribution in #709

Full Changelog: release-0.8.43...release-0.8.44

One column per quarter.

0.8.4313 May 2026

Remove unused cython imports in dist_metrics.pxd by @muitiiifruckt in #704

What's Changed

Remove unused cython imports in dist_metrics.pxd by @muitiiifruckt in #704
Update build pipeline by @gclendenning in #705
Modernize wheel CI and add cp314 wheel support by @Mokto in #706

New Contributors

@muitiiifruckt made their first contribution in #704
@Mokto made their first contribution in #706

Full Changelog: release-0.8.42...release-0.8.43

Open source →

0.8.4227 Mar 2026

Fix outlier scores by @JelmerBot in #697

What's Changed

Fix outlier scores by @JelmerBot in #697
Fix invalid escape sequences in docstring by @timmooren in #698
CI: Build Windows wheels for CPython 3.10–3.13 (GitHub Actions) by @andrijajovanovic98 in #699
Fix invalid escape sequence warning in robust_single_linkage docstring by @bentoviml in #703
Use manylinux_2_8 to build wheels on linux by @gclendenning in #701

New Contributors

@timmooren made their first contribution in #698
@andrijajovanovic98 made their first contribution in #699
@bentoviml made their first contribution in #703

Full Changelog: release-0.8.41...release-0.8.42

Open source →

0.8.4112 Dec 2025Deprecated

Deprecated argument names in hdbscan_.py by @joaquindas in #673

What's Changed

Branch detection updates by @JelmerBot in #667
fix plotting fast_hdbscan condensed trees by @JelmerBot in #666
Silence divide by zero warnings in branch detection code by @JelmerBot in #669
Update python versions in package metadata by @gclendenning in #671
branch-detection paper references by @JelmerBot in #674
simplify_hierarchy and CondensedTree._select_clusters optimisations by @JelmerBot in #677
Fix Build Wheel for Linux python 3.12 by @Antobiotics in #663
Devops updates - Remove 3.9 support, add 3.13, remove coveralls, upload to test pypi by @gclendenning in #690
Fix resolve broken DOI link in README (10.7717/peerj-cs.2792) by @R0SEWT in #692
Deprecated argument names in hdbscan_.py by @joaquindas in #673

New Contributors

@Antobiotics made their first contribution in #663
@R0SEWT made their first contribution in #692
@joaquindas made their first contribution in #673

Full Changelog: release-0.8.40...release-0.8.41

Open source →

0.8.4018 Nov 2024

Adds cythonize() call to extensions in setup.py() by @axiak in https://github.com/scikit-learn-contrib/hdbscan/pull/658

What's Changed

Adds cythonize() call to extensions in setup.py() by @axiak in https://github.com/scikit-learn-contrib/hdbscan/pull/658
Add new argument for limiting the maximum epsilon by @prodrigues-tdx in https://github.com/scikit-learn-contrib/hdbscan/pull/529

New Contributors

@axiak made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/658
@prodrigues-tdx made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/529

Full Changelog: https://github.com/scikit-learn-contrib/hdbscan/compare/release-0.8.39...release-0.8.40

Open source →

Additional notes

What's Changed

Adds cythonize() call to extensions in setup.py() by @axiak in #658
Add new argument for limiting the maximum epsilon by @prodrigues-tdx in #529

New Contributors

@axiak made their first contribution in #658
@prodrigues-tdx made their first contribution in #529

Full Changelog: release-0.8.39...release-0.8.40

Open source →

0.8.3912 Oct 2024

Add property setters for class HDBSCAN by @divyegala in #657

What's Changed

Add property setters for class HDBSCAN by @divyegala in #657

New Contributors

@divyegala made their first contribution in #657

Full Changelog: release-0.8.38-2...release-0.8.39

Open source →

0.8.38.post28 Oct 2024Deprecated

Build for python 3.12, deprecate python 3.7

What's Changed

Fix typo's and avoid internal numpy API in branch detection code. by @JelmerBot in #654
Build for python 3.12, deprecate python 3.7

Full Changelog: release-0.8.38-1...release-0.8.38.post2

Open source →

Additional notes

What's Changed

Fix typo's and avoid internal numpy API in branch detection code. by @JelmerBot in #654
Update build scripts to build wheels for python 3.12

Full Changelog: release-0.8.38-1...release-0.8.38-2

Open source →

0.8.38.post15 Aug 2024

Nothing published for this version

0.8.3717 Jun 2024

Pin numpy<2 for now since this breaks builds.

Open source →

0.8.3624 May 2024

Full Changelog: https://github.com/scikit-learn-contrib/hdbscan/compare/release-0.8.35...release-0.8.36

Full Changelog: https://github.com/scikit-learn-contrib/hdbscan/compare/release-0.8.35...release-0.8.36

Open source →

0.8.34rc120 Nov 2023pre-releaseDeprecated

Fixed DeprecationWarning in hdbscan/hdbscan_.py by @gerald-ftk in https://github.com/scikit-learn-contrib/hdbscan/pull/612

What's Changed

Update validity.py by @armenbod in https://github.com/scikit-learn-contrib/hdbscan/pull/580
Wheel publish github action by @Rhaedonius in https://github.com/scikit-learn-contrib/hdbscan/pull/604
Build platform dependent wheel files by @gclendenning in https://github.com/scikit-learn-contrib/hdbscan/pull/606
Fixed DeprecationWarning in hdbscan/hdbscan_.py by @gerald-ftk in https://github.com/scikit-learn-contrib/hdbscan/pull/612
Add .readthedocs.yaml to fix failing docs build issue. by @chenxinye in https://github.com/scikit-learn-contrib/hdbscan/pull/619

New Contributors

@armenbod made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/580
@gerald-ftk made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/612
@chenxinye made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/619

Full Changelog: https://github.com/scikit-learn-contrib/hdbscan/compare/0.8.33...release-0.8.34-rc1

Open source →

0.8.3318 Jul 2023

Hopefully the last round of patches to work around recent issues introduced by a newer release of Cython

Open source →

0.8.3217 Jul 2023

Cython 3 introduces a number of issues; prevent using Cython 3 for compilation until we've worked through all the changes required.

Open source →

0.8.3117 Jul 2023

Resolve recent build issues with full module name resolution

Full Changelog: https://github.com/scikit-learn-contrib/hdbscan/compare/0.8.30...0.8.31

Open source →

0.8.305 Jul 2023

Changes to support scikit-learn 1.3

What's Changed

Changes to support scikit-learn 1.3
Fix typo in docstring by @yoavram in https://github.com/scikit-learn-contrib/hdbscan/pull/573
Set seed for generating noisy data by @gclendenning in https://github.com/scikit-learn-contrib/hdbscan/pull/594

New Contributors

@yoavram made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/573
@gclendenning made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/594

Full Changelog: https://github.com/scikit-learn-contrib/hdbscan/compare/0.8.29...0.8.30

Open source →

0.8.2931 Oct 2022

Fix malformed list in docs by @dmlls in https://github.com/scikit-learn-contrib/hdbscan/pull/535

What's Changed

Fix malformed list in docs by @dmlls in https://github.com/scikit-learn-contrib/hdbscan/pull/535
Incorrect initialization in BallTreeBoruvka dual_tree_traversal by @GregDemand in https://github.com/scikit-learn-contrib/hdbscan/pull/508
hdbscan: add support to other types of input integers by @jcfaracco in https://github.com/scikit-learn-contrib/hdbscan/pull/540
Add parameter to DBCV which toggles the usage of mutual reachability distances by @luis261 in https://github.com/scikit-learn-contrib/hdbscan/pull/552
Fixed: validity index no longer returning nan by @tadorfer in https://github.com/scikit-learn-contrib/hdbscan/pull/558
Use a positional argument for the cachedir/location by @lmcinnes in https://github.com/scikit-learn-contrib/hdbscan/pull/563

New Contributors

@dmlls made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/535
@jcfaracco made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/540
@luis261 made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/552
@tadorfer made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/558
@lmcinnes made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/563

Full Changelog: https://github.com/scikit-learn-contrib/hdbscan/compare/0.8.28...0.8.29

Open source →

0.8.288 Feb 2022

Nothing published for this version

0.8.273 Feb 2021Deprecated

fix issue-436 unused deprecated joblib option by @neontty in https://github.com/scikit-learn-contrib/hdbscan/pull/438

What's Changed

Added axis control on colourbars by @tomcharnock in https://github.com/scikit-learn-contrib/hdbscan/pull/365
Fixing typos by @cassmarcussen in https://github.com/scikit-learn-contrib/hdbscan/pull/366
Predict score by @Rhaedonius in https://github.com/scikit-learn-contrib/hdbscan/pull/368
fix issue 370 by @neontty in https://github.com/scikit-learn-contrib/hdbscan/pull/371
fix the core distance computation can only use 4 cores. by @GorvinChen in https://github.com/scikit-learn-contrib/hdbscan/pull/377
Issue 370 by @neontty in https://github.com/scikit-learn-contrib/hdbscan/pull/385
Fixed line widths for single linkage dendrograms with duplicate lambda_val by @GregDemand in https://github.com/scikit-learn-contrib/hdbscan/pull/391
Module for flat clustering by @sabarish-akridata in https://github.com/scikit-learn-contrib/hdbscan/pull/398
Improved union-find data structure implementation by @kylehofmann in https://github.com/scikit-learn-contrib/hdbscan/pull/412
fixes #370 -- epsilon search would crash when root node in leaf list by @neontty in https://github.com/scikit-learn-contrib/hdbscan/pull/400
let root children size==1 to join root node in allow_single based on 1/eps by @neontty in https://github.com/scikit-learn-contrib/hdbscan/pull/418
fix issue-436 unused deprecated joblib option by @neontty in https://github.com/scikit-learn-contrib/hdbscan/pull/438
Fix build errors by @gansanay in https://github.com/scikit-learn-contrib/hdbscan/pull/449
update build by @gansanay in https://github.com/scikit-learn-contrib/hdbscan/pull/450
Fix mismatching clusters probabilities in softclustering by @narjes23 in https://github.com/scikit-learn-contrib/hdbscan/pull/454
Fixing typos in "Don't be wrong!" section by @hovikgas in https://github.com/scikit-learn-contrib/hdbscan/pull/455
Update pyproject.toml to use oldest-supported-numpy by @stradigi-mario-bruno in https://github.com/scikit-learn-contrib/hdbscan/pull/458
Fix numpy 1.20 deprecation warnings by @rmcgibbo in https://github.com/scikit-learn-contrib/hdbscan/pull/468
max_cluster_size parameter by @Rocketknight1 in https://github.com/scikit-learn-contrib/hdbscan/pull/410
Fix typos by @julienschuermans in https://github.com/scikit-learn-contrib/hdbscan/pull/489
handle non-finite valued vectors by @jc-healy in https://github.com/scikit-learn-contrib/hdbscan/pull/497
Fixed the bug that joblib uses memory mapping when data size is too large by @ginward in https://github.com/scikit-learn-contrib/hdbscan/pull/495
Fix ZeroDivisionError: float division error when computing per_cluster_scores by @Dicksonchin93 in https://github.com/scikit-learn-contrib/hdbscan/pull/502
Update requirements.txt by @Ben-Epstein in https://github.com/scikit-learn-contrib/hdbscan/pull/503
Fixed off by one errors in min_samples for multiple algorithms by @GregDemand in https://github.com/scikit-learn-contrib/hdbscan/pull/394
Modified Prims to generate MST by @pberba in https://github.com/scikit-learn-contrib/hdbscan/pull/315
Remove usage of six by @rahulporuri in https://github.com/scikit-learn-contrib/hdbscan/pull/516
dbscan cluster extraction by @jc-healy in https://github.com/scikit-learn-contrib/hdbscan/pull/519

New Contributors

@tomcharnock made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/365
@cassmarcussen made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/366
@Rhaedonius made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/368
@neontty made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/371
@GorvinChen made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/377
@GregDemand made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/391
@sabarish-akridata made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/398
@kylehofmann made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/412
@gansanay made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/449
@narjes23 made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/454
@hovikgas made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/455
@stradigi-mario-bruno made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/458
@rmcgibbo made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/468
@Rocketknight1 made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/410
@julienschuermans made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/489
@jc-healy made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/497
@ginward made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/495
@Dicksonchin93 made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/502
@Ben-Epstein made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/503
@pberba made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/315
@rahulporuri made their first contribution in https://github.com/scikit-learn-contrib/hdbscan/pull/516

Full Changelog: https://github.com/scikit-learn-contrib/hdbscan/compare/0.8.26...0.8.27

Open source →

0.8.2619 Mar 2020

Nothing published for this version

0.8.2510 Mar 2020

Nothing published for this version

0.8.248 Dec 2019

Nothing published for this version

0.8.238 Oct 2019

Nothing published for this version

0.8.2214 May 2019

Nothing published for this version

0.8.2113 May 2019

Nothing published for this version

0.8.2016 Apr 2019

Nothing published for this version

0.8.1924 Jan 2019

Nothing published for this version

0.8.1811 Sept 2018

Nothing published for this version

0.8.179 Sept 2018

Nothing published for this version

0.8.167 Sept 2018

Nothing published for this version

0.8.1521 Jul 2018

Nothing published for this version

0.8.1418 Jul 2018

Nothing published for this version

0.8.1329 Apr 2018

Nothing published for this version

0.8.1220 Jan 2018

Nothing published for this version

0.8.118 Nov 2017

Nothing published for this version

0.8.1030 Mar 2017

Nothing published for this version

0.8.85 Mar 2017

Nothing published for this version

0.8.72 Feb 2017

Nothing published for this version

0.8.6

Nothing published for this version

0.8.528 Jan 2017

Nothing published for this version

0.8.45 Jan 2017

We introduce the density based clustering validity index from Density Based Clustering Validation by Moulavi, Jaskowiak, Campello, Zimek and Sander, a

We introduce the density based clustering validity index from Density Based Clustering Validation by Moulavi, Jaskowiak, Campello, Zimek and Sander, as well as some minor bug fixes, and the option to match the reference implementation of HDBSCAN*

Open source →

0.8.324 Nov 2016

Nothing published for this version

0.8.215 Sept 2016

Nothing published for this version

0.8.118 Aug 2016

Nothing published for this version

0.85 Jun 2016

Support for cluster strengths and general bug fixes.

Open source →

0.7.330 Apr 2016

A visual refresh of the plotting routines, along with a series of bug fixes for various corner cases.

Open source →

0.7.229 Feb 2016

Nothing published for this version

0.7.126 Feb 2016

A very minor performance regression to get this fixed, but it eliminates segfaults on Linux, so is necessary.

Open source →

0.722 Feb 2016

Boruvka scales poorly with dimension; by approximating the minimal spanning tree we can achieve far better scaling with dimension at the cost of sligh

Boruvka scales poorly with dimension; by approximating the minimal spanning tree we can achieve far better scaling with dimension at the cost of slightly less accurate clustering. In testing the loss of accuracy seems very small, so I'm pushing it out with that defaulted to on.

Open source →

0.6.516 Dec 2015

Nothing published for this version

0.6.45 Dec 2015

Fix bugs introduced when working around numpy performance regression.

Open source →

0.6.23 Dec 2015

Fix issues with 32 bit Windows installs Fix issues caused by a performance regression in bumpy structured array accesses

Open source →

0.6.13 Dec 2015

Nothing published for this version

0.62 Dec 2015

Better performance Fixes for Robust Single Linkage Faster cluster extraction from trees New Notebooks

Open source →

0.515 Nov 2015

Further optimization of routines that became bottlenecks due to the new faster minimum spanning tree algorithm. Reworking the calling of query on tree

Further optimization of routines that became bottlenecks due to the new faster minimum spanning tree algorithm. Reworking the calling of query on trees to optimize core distance computation in higher dimensional spaces.

Open source →

0.4.29 Nov 2015

Bug fixes for pip installing 0.4

Open source →

0.4.19 Nov 2015

Nothing published for this version

0.48 Nov 2015

New algorithms bring dramatic speed improvements, particularly for low dimensional data.

Open source →

0.3.15 Nov 2015

Nothing published for this version

0.321 Oct 2015

Support low memory; Robust single linkage.

Open source →

0.220 Oct 2015

Nothing published for this version

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