This is a big one for multi-tasking. The panel allowed the host to retrieve data out of logical order. Previously, the storage had to wait for specific data blocks; now, it sends whatever is available first. Result: lower "tail latency" for random reads.
Stay tuned for the 4.1 ratification. The panel isn't slowing down. Ufs Panel Latest Version
Here is what changed, why it matters for engineers and product managers, and what the "Latest Version" actually unlocks. While the panel is constantly working on errata and maintenance releases, the latest stable version of the standard is UFS 4.0 (JESD220F). This is a big one for multi-tasking
Start migrating your thermal budgets now. 4,600 MB/s generates heat. The spec allows for it, but your chassis needs to dissipate it. Result: lower "tail latency" for random reads
I have written this to be informative about the latest version (currently , with eyes on 4.1/5.0), as "UFS Panel" usually implies the committee that sets these standards. Inside the UFS Panel: What the Latest Version Means for Storage Speed If you care about smartphone boot times, DSLR burst photography, or automotive data logging, you care about the work of the UFS Panel .