Early access is the perfect time to start optimizing your game’s client after internal testing; you finally have access to computers that aren’t dedicated test machines from the early access buyers, after all. Fragmented dropped exactly that sort of patch to the newly accessible game, with the primary focus of fixing some latency and network issues that could negatively impact the game.
The patch also adds in more skill points per level, includes a skill respec function, and a new skill point configuration for hosted servers. Progression overall has gotten a little bit smoother, and there’s a general sense of quality of life improvements. If you’ve already been enjoying the spin-off, this should help make it more fun to play, and if you wanted to enjoy it but were stuck with network issues those may have been fixed now.