Python Polars 1.13.1

✨ Enhancements

• Add IPC source node for new streaming engine (#19454)

🐞 Bug fixes

• Release GIL in Python APIs, part 1 (#19705)
• Fix incorrect lazy schema for aggregations (#19753)
• Address incorrect selector & col expansion (#19742)

📖 Documentation

• Fix formatting of nested list (#19746)
• Add meta.is_column to API docs (#19744)
• Fix join API reference links (#19745)

Thank you to all our contributors for making this release possible!
@alexander-beedie, @coastalwhite, @etiennebacher, @itamarst, @nameexhaustion, @orlp, @ritchie46 and @rodrigogiraoserrao