v0.40.0

Release 0.40.0 (2025-07-24)

Move from arrow2 to arrow & parquet

• Remove arrow2 dependency
• Add arrow and parquet dependencies
• Update WithParquet implementation
• On user side, there are almost no changes in DataFrame API, but there is one change for fuga user:
  • CompressionOptions -> UNCOMPRESSED, SNAPPY, GZIP(level), LZ4, ZSTD(level), BROTLI(level), LZO, LZ4_RAW
  • For prelude user, there are completely no changes. Default compression is SNAPPY.

Release 0.39.11 (2025-07-22)

• Implement derivative and integral of B-Spline

Full Changelog: v0.39.11...v0.40.0