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osy
e2e37cf9b2
The nearest-neighbour default (ba5f7f7f, #3371) was chosen for
low-resolution guests, where linear washes out already-chunky text. It is
the wrong choice everywhere else: a modern guest rarely upscales by an
integer ratio, so nearest duplicates source pixels unevenly and looks
blocky rather than sharp -- the complaint behind #6209 and #6572.
Default to linear and let the wizard select nearest for the guests the
original change was about: Classic Mac OS, Windows 7 and below, and any OS
configured for legacy hardware. Legacy hardware is checked on its own
rather than folded into the Windows case so that choosing a legacy machine
opts in under any OS, and because the summary page can enable it after the
Windows page has already latched isWindows10OrHigher.
Existing VMs are unaffected: upscalingFilter is a required coding key, so
a saved configuration always carries its own value. The UTM 2.x migration
path is likewise unchanged, since an absent displayUpscaler already
defaulted to linear.
Assisted-by: Claude:claude-opus-5