DataFrame.is_sorted()

This release introduces significant performance improvements across various operations, including pushdown optimizations, enhanced join strategies, and more efficient memory handling. It also brings a host of new features like `struct.drop()`, improved CSV scanning, and experimental out-of-core spilling, alongside numerous bug fixes for enhanced stability and correctness.

This release introduces performance improvements across cloud IO and expression evaluation, adds experimental features like out-of-core spilling and strict mode, and fixes numerous bugs related to SQL, projection pushdown, and joins. Notably, it deprecates implicit string-to-temporal casts.