Small component typing update

This is a very small bump that adds better component base class typing.

What's Changed

• Update component configuration type warnings by @mdekstrand in #603

Full Changelog: v2025.0.0a5...v2025.0.0a6

Alpha 5: configuration

Mostly changes around the component API:

• use Pydantic models for configuration
• update Trainable interface to take training options
• add iterative training interface

What's Changed

• Use Pydantic models for component configurations by @mdekstrand in #596
• Re-add return type variable for Component by @mdekstrand in #598
• Migrate HPF to configuration object and fix BiasConfig serialization by @mdekstrand in #600
• Move Trainable interface and add TrainingOptions by @mdekstrand in #599
• Add iterative training API by @mdekstrand in #601
• rename "Lenskit" to LensKit for consistency by @mdekstrand in #602

Full Changelog: v2025.0.0a4...v2025.0.0a5

Alpha 4: performance

Mostly some performance and logging / debugging improvements, along with some refactors.

What's Changed

• Update pre-commit hook versions by @mdekstrand in #594
• Add directory check in save_parquet by @samiravaez in #593
• Refactor Pipeline into private submodule and improve documentation by @mdekstrand in #595
• Speed up popularity scoring and top-N ranking by @mdekstrand in #597

New Contributors

• @samiravaez made their first contribution in #593

Full Changelog: v2025.0.0a3...v2025.0.0a4

3rd Alpha — logging and version fixes

This improves some error messages, logging, and versioning; and tags a prerelease before doing data and configuration improvements.

What's Changed

• emit higher-quality error message on node failure by @mdekstrand in #584
• Add support for 12Factor-style JSON logging by @mdekstrand in #591
• Fix NumPy/PyTorch version problem and item KNN type problem w/ NumPy array by @mdekstrand in #592

Full Changelog: v2025.0.0a2...v2025.0.0a3

Second 2025 Prerelease

This rolls up a number of new changes and bugfixes in the run up to 2025.1.

What's Changed

• Move LensKit test support into lenskit.testing package by @mdekstrand in #575
• Add user/item vocab options and subsetting to from_interactions_df by @mdekstrand in #577
• Implement and use common component test suites by @mdekstrand in #576
• Accelerate item-item k-NN algorithms by @mdekstrand in #578
• Modest user-KNN speedups + item KNN logging by @mdekstrand in #579
• Add basic_logging function and use it in the GettingStarted notebook by @mdekstrand in #580
• Add stability declarations to documentation by @mdekstrand in #581
• Add predict_pipeline, remove data.bulk module, and clean up batch functions by @mdekstrand in #582
• Implement a proxy logger that suppresses debug & info messages by default by @mdekstrand in #583

Full Changelog: v2025.0.0a1...v2025.0.0a2

Initial PyPI 2025 release

This is the first pre-release of LensKit 2025 to PyPI.

Quick bugfix

This fixes a bug in the util.clone function where it incorrectly cloned tuples as lists.

0.14 Dependency Updates

This is a small compatibility update for 0.14 to support Python 3.11, newer Numba, and Pandas 2.

What's Changed

• Support Python 3.11 & Numba 0.58 by @mdekstrand in #355

Full Changelog: 0.14.2...0.14.3

Dependency Updates

This release just bumps dependencies to enable and test support for Numba 0.56; also bumps up the minimum SciPy version to make the tests pass reliably (the minimum version is still several years old).

What's Changed

• Use external build tools for 0.14 fix releases by @mdekstrand in #321
• Support Numba 0.56 in 0.14 series by @mdekstrand in #322

Full Changelog: 0.14.1...0.14.2

Fix truncated nDCG bug

This release fixes #309, a bug in which the nDCG metric was not correctly computed when k is smaller than the recommendation list.

What's Changed

• Fix nDCG truncation bug (#309) by @mdekstrand in #310.

Full Changelog: 0.14.0...0.14.1