Operating system: Windows 10
Graphics card: 1080ti
2.80 downloaded on the 3rd of Feb, 2019 as found on the download beta section
Short description of error
Some artifacts around the out circle in the blend file, this is not present in Blender 2.79
Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).
load attached file, doesn't matter if it is Cycles or Blender the artifact is present.