This release fixes a minor issue where a suggested `aliDoctor` command did not include a `--defaults` flag, and provides a new `REQUESTED_VERSION` variable to `prefer_system_check`.
1.8.1
This release speeds up the initial sync from the remote store significantly.
1.8.0
In addition to minor fixes and speed-ups, local-only revisions (those that won't be uploaded to the remote store) now have their own revision "namespace" to prevent conflicts between the remote store and locally-built packages.