Apache Data Lakehouse Weekly: April 3–9, 2026

The open lakehouse community gathered in San Francisco this week for the biggest Iceberg Summit yet, two full in-person days at the Marriott Marquis, while Arrow's release engineering hummed along, Polaris settled into its first full month as a top-level project, and Parquet's ALP encoding vote moved toward a close. The summit didn't just celebrate what the community has built; it provided the forum to hash out the debates that have defined the dev lists all spring. Apache Iceberg Iceberg Summit 2026, the third edition of the ASF-sanctioned gathering, ran April 8–9 at San Francisco's Marriott Marquis , growing to two full in-person days after last year's sold-out success drew nearly 500 attendees. The community warmed up at a Pre-Summit Meetup hosted by Bloomberg's Engineering Department on April 7, organized by Sung Yun, with lightning talks and networking before the main event. Speakers from Apple, Bloomberg, Pinterest, Wells Fargo, and contributors from across the vendor ecosystem t