| Metric | Stock Windows Update | Updateland 36 | Updateland 37 | | :--- | :--- | :--- | :--- | | Time to detect available updates | 47 seconds | 12 seconds | | | Bandwidth used (monthly avg) | 8.7 GB | 3.2 GB | 520 MB | | Failed update recovery time | 22 minutes | 4 minutes | 800 ms | | CPU overhead (background) | 6% | 2% | 0.5% |
6.1 Roles and Responsibilities
Previous versions of update managers relied on delta updates (downloading only the changed parts of a file) or peer-to-peer distribution. Updateland 37 introduces Quantum Binary Diffing (QBD).
4.1 Release Mechanics
The QA team conducted a full regression cycle over a 5-day period.
