⚠️ Deprecations Deprecate strict parameter of pl.concat, replace with new how='horizontal_extend' (#27965) 🚀 Performance improvements Add a sampled resolve mode for multi-file parquet metadata (#28111) Speed up small dtype series sums with a upcast sum kernel (#27958) Don't block on path expansion (#28073) ✨ Enhancements Close ResourceWarning leaks in database tests (#28066) 🐞 Bug fixes Incorrect sorted fast-path returning nan for grouped max (#28129) Fix panic on scan_parquet filter of fixed-size binary column (#28122) Fix decimal dynamic float cast (#28126) Fix pyiceberg key dot HDFS prefix filter (#28109) Fix projection pushdown panic on select(len()) after groupby (#28108) Fully resolve remaining ResourceWarning leaks in database/iceberg tests (#28107) Expiry time loading for AWS DeferredRefreshableCredentials (#28099) Close ResourceWarning leaks in database tests (#28066) Avoid panic on temporal extraction for datetime columns with nulls (#28054) Prevent panic in replace when old/new contain Expr or object dtype values (#27433) 📖 Documentation Fix dataset regression in the examples (#28131) Emphasize to generally not ever write Rust tests (#28082) Mention Polars skill in User Guide's LLM section (#28113) 🛠️ Other improvements Disallow usage of tokio::spawn in clippy (#28123) Improve Makefile with respect to venv robustness (#28110) Remove legacy prelude glob imports from leaf files (#28114) Skip pandas 3.0.4 due to pd.TimeDelta segfault (#28125) Update mypy to the new 2.x release (#28116) Ensure pyrefly checks run as part of make pre-commit (#28095) Fix test_select_explode_height_filter_order_by failure when POLARS_MAX_THREADS=2 (#28090) Add Morsel::height (#28060) Thank you to all our contributors for making this release possible! @0guban0v, @Kevin-Patyk, @TNieuwdorp, @alexander-beedie, @azimafroozeh, @dsprenkels, @kdn36, @nameexhaustion, @orlp, @raphaelroshan, @ritchie46 and @sar-cheng