The Repopulation has made a point of upping melee's viability by improving its ability to hit a moving target; if someone's going to do it anyway, it may as well be viable. Medical abilities have also been improved, and the game's crosshairs and aiming assistance have both received an upgrade.
The other two major areas of improvement for the game's past month of development has been the addition of new content near Plymouth (including a truly massive cave network) and improvements to missions and mission templates to make the game easier to jump into. The inquiry system also allows players to collect data on the game world, and the Surveying skill allows players to figure out where harvestable resources are located. Take a look at the full patch notes for an in-depth look at how the game has changed as it moves ever closer to its beta test phase.