May 2026 monthly summary for paradedb/paradedb: Implemented substantial stability and concurrency improvements for logical replication and core data paths under high apply/load. Key features delivered include: (1) TOAST and race-condition stability fixes in the logical-replication stress tests to prevent TOAST threshold overflow and visibility races, enabling longer test runs; (2) Race-condition fixes in core data paths under concurrency (LinkedItemList and VACUUM), including maintaining a shared header lock during iteration to avoid crashes and index corruption and improving detoasting behavior; (3) Eager detoast in index_memory_segment to prevent TOAST races with VACUUM by keeping the buffer pin and detoasting eagerly. These changes reduce crash risk, stabilize replication subscribers under high throughput, and improve CI/regression reliability. Verified with rustfmt checks and stress-test suites; co-authored by Philippe Noël.

March 2026 monthly summary for proton repository timeplus-io/proton: Implemented Streaming Batch Processing for Dynamic/JSON streams to improve memory usage and stability during commits. Added configurable batching thresholds to cap memory consumption and prevent OOM, with a focused fix for tiny-part storms in dynamic/JSON streams.