If you don't update base first (as you should always do), recent package snapshots will break.
Code to parse the hash after @option always-update <hvalue> was added on May 26. Package snapshots built after May 28 use that new syntax. You will notice fairly early, as quirks uses @option always-update the new package will refuse to install with an error from the packing-list parsing code: "Unknown option: always-update <base64gibberish>"
