Once again a stable release has come around. 4.5 contains a range of useful community contributions to give you better performance and extended features. Some notable ones:
Brim distance. This new setting contributed by smartavionics allows you to define a gap between the brim and the model for easier brim removal and reduced chance of leaving a mark on the finished piece.
'Skin Edge Support' settings. It’s now possible to add an extra line inside
Same issue as Spandex_Spatula. This is the build area on the Ender 3 with skirt turned off and a fresh default Cura 4.5. Machine settings are the correct 235,235,250.