Operating system: Ubuntu 18.04
Graphics card: AMD RX580
2.80 (sub 43), branch: blender2.7, commit date: 2019-01-31 21:41, hash: 8a51af7d1c98, type: Release
For those modelling with precision, the viewport grid units serve as scale/guide/reference. Currently it's very hard to determine scale when zoomed in close to an object. This was present in 2.79.
Related: [[ https://developer.blender.org/rBS45ba3d31c04a8ea3020f5ae24827d2a40ada5f7f | 45ba3d31c04a ]]
The image attached has different zoom levels but it's impossible to tell which one is zoomed in more than the other.