There’s no denying that S3 is a feat of engineering. Building and Operating a Pretty Big Storage System is a top-tier technology flex. But S3’s feature set is falling behind its competitors. Notably, S3 has no compare-and-swap (CAS) operation—something every single other competitor has. It also lacks multi-region buckets and object appends. Even S3 Express is proving to be lackluster.These missing features haven’t mattered much for data lakes and offline use cases. But new infrastructure is usin...