ORC is a self-describing type-aware columnar file format designed for Hadoop workloads. It is optimized for large streaming reads, but with integrated support for finding required rows quickly.

classes, spells, or rules — before it gets published in an official book. UA played a major role in 5th edition and is where the artificer class made its first appearance.

The 2024 edition of D&D is revamping the Artificer class with new spells and abilities. The updated Artificer class now includes options to craft magical items and burn them for spell slots.