V4 changes font weight?

[jlemonz]

HI ,
i just upgraded my project. and i see that some fonts are changed? On v4 they are thicker and the list also looks different. See the header and list font. The list font looks blurry now? I checked console and i see the same font etc. See screenshots.
this is v3 and this v4

[rossvasquez]

this worked for me

body { -webkit-font-smoothing: antialiased; }

must've been removed from preflight but was not specified in docs afaik