https://wintermutecore.com/tags/polars/Recent content in Polars on Project WintermuteHugoen-usTue, 30 Jun 2026 04:58:11 +0000https://wintermutecore.com/posts/polars-py-1-42-1-parquet-panic-fixes/Tue, 30 Jun 2026 04:58:11 +0000https://wintermutecore.com/posts/polars-py-1-42-1-parquet-panic-fixes/<p>Python Polars <code>py-1.42.1</code> was published on June 30, 2026, as a patch release for Polars data pipelines. The most important operator visible change is a set of panic and correctness fixes around Parquet scans, grouped aggregations, projection pushdown, datetime extraction, and <code>replace</code> expressions. This release is not marked as a prerelease.</p>https://wintermutecore.com/posts/polars-py-1-42-0-release-cloud-io/Wed, 24 Jun 2026 05:20:43 +0000https://wintermutecore.com/posts/polars-py-1-42-0-release-cloud-io/<p>Polars <code>py-1.42.0</code> was published on June 24, 2026 for Python users of the <code>pola-rs/polars</code> project. The most useful change for data engineering teams is the set of cloud IO and parquet read improvements, especially bytes based concurrency control, object store DNS handling, and metadata work for multi file parquet scans.</p>