polars

🏆 Highlights

• Add Extension types (#25322)

🚀 Performance improvements

• Don't always rechunk on gather of nested types (#26478)
• Enable zero-copy object_store put upload for IPC sink (#26288)
• Resolve file schema's and metadata concurrently (#26325)
• Run elementwise CSEE for the streaming engine (#26278)
• Disable morsel splitting for fast-count on streaming engine (#26...

✨ Enhancements

• Add get() to retrieve a byte from binary data (#26454)
• Remove with_context in SQL lowering (#26416)

🐞 Bug fixes

• Do not overwrite used names in cluster_with_columns pushdown (#26467)
• Do not mark output of concat_str on multiple inputs as sorted (#26468)
• Fix CSV schema inference content line duplication bug (#26452)
• Fix InvalidOperationError using `scan_delta...

⚠️ Deprecations

• Deprecate retries=n in favor of storage_options={"max_retries": n} (#26155)

🚀 Performance improvements

• Enable zero-copy object_store put upload for IPC sink (#26288)
• Resolve file schema's and metadata concurrently (#26325)
• Run elementwise CSEE for the streaming engine (#26278)
• Disable morsel splitting for fast-count on streaming engine (#26245)
• Implemen...

🚀 Performance improvements

• Speed up SQL interface "UNION" clauses (#26039)

🐞 Bug fixes

• Optimize slicing support on compressed IPC (#26071)
• CPU check for musl builds (#26076)
• Propagate C Stream import errors instead of panicking (#26036)
• Fix slicing on compressed IPC (#26066)

📖 Documentation

• Clarify min_by/max_by behavior on ties (#26077)

🛠️ Other improvements...

🚀 Performance improvements

• Speed up SQL interface "ORDER BY" clauses (#26037)
• Add fast kernel for is_nan and use it for numpy NaN->null conversion (#26034)
• Optimize ArrayFromIter implementations for ObjectArray (#25712)
• New streaming NDJSON sink pipeline (#25948)
• New streaming CSV sink pipeline (#25900)
• Dispatch partitioned usage of sink_* functions to new-streaming by defaul...