Release DataFusion `50.0.0` (Aug/Sep 2025)

[alamb]

Is your feature request related to a problem or challenge?

Tracking ticket for next release, also a place to track desired inclusions

Previous release will be #16235 (July, 2025) so next major release would be late Aug / early Sep 2025

Steps:

• Create a branch-XXX branch:
• Update version and changelog:
• Test with DataFusion Python:
• Test with DataFusion Comet
• Test with delta.rs:
• Test with iceberg-rust:
• Test with LakeSail:
• Write upgrade guide:
• Test with parquet viewer
• Test with datafusion-materialized-views
• Voting Thread:
• Create ticket for next release:

TODOs

Prior release tickets:

• 49.0.0: Release DataFusion 49.0.0 (July 2025) #16235

Related

• NYC meetup: DISCUSSION: DataFusion Meetup in New York, NY, USA - Sep 15, 2025 #16265

Changes to add to upgrade guide

Features to mention in the blog (if they make it)

• [EPIC] A collection of tickets for improving sorting larger than memory datasets / spilling sorts #15271
• feat: change Expr OuterReferenceColumn to Box type for reducing expr struct size #16771

Bugs that need to be fixed

Bugs that would be good to fix / investigate

• Different result of double to timestamp(9) cast when source value is constant #16636
• Different result of decimal to timestamp cast when source value is constant #16531
• to_timestamp(double) gives different results depending on scalar/vectorized call context #16678

Community Wishlist

• Format Date32 to string given timestamp specifiers #15361

[zhuqi-lucas]

Marked the reduce Expr size task here:

#16771

[alamb]

Marked the reduce Expr size task here:

#16771

Added