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2 changes: 1 addition & 1 deletion pyproject.toml
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"

[project]
name = "hlink"
version = "4.2.0"
version = "4.2.1"
description = "Fast supervised pyspark record linkage software"
readme = "README.md"
requires-python = ">=3.10"
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16 changes: 16 additions & 0 deletions sphinx-docs/changelog.md
Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,21 @@
The format of this changelog is based on [Keep A Changelog][keep-a-changelog].
Hlink adheres to semantic versioning as much as possible.

## v4.2.1 (2025-08-18)

### Fixed

* Fixed a bug where hlink would throw an error if you tried to manually provide
a seed to the `random_forest`, `decision_tree`, or `gradient_boosted_trees`
machine learning model. Now hlink accepts the `seed` parameter and passes it
along to the model. If you do not pass a `seed` parameter, hlink behaves in the
same way as before and automatically sets a default seed for you. [PR #222][pr222]

* Fixed a bug where hlink did not automatically set the seed for the XGBoost and
LightGBM machine learning models. The new behavior is to accept the `seed` parameter
if it is passed by the user, or set a default seed if it is not passed. This matches
the new behavior for the other models. [PR #222][pr222]

## v4.2.0 (2025-04-29)

### Added
Expand Down Expand Up @@ -437,6 +452,7 @@ and false negative data in model exploration. [PR #1][pr1]
[pr213]: https://github.com/ipums/hlink/pull/213
[pr215]: https://github.com/ipums/hlink/pull/215
[pr219]: https://github.com/ipums/hlink/pull/219
[pr222]: https://github.com/ipums/hlink/pull/222

[household-matching-docs]: config.html#household-matching
[household-training-docs]: config.html#household-training-and-model-exploration
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