Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ConfigurationArea: what it touches
Internal ChangesKind: in v2.1.238,
Internal ChangesSection of the release
What
The generated identifier for an installation is now stored under machineID instead of the old key name, so existing installs will generate a fresh value on next write. The helpers that create and save it now receive the config store explicitly rather than reaching for a global.
Evidence
machineID
Strings lifted out of the shipped bundle, so the claim above can be checked against them.