Each weapon you hold in your hands can be imbued with technomancy powers to add shock damage at the cost of focus energy resource while upgrade slots allow for extra stat increases as you progress through the campaign. (pixeljudge.com)
On top of that you can bump up base stats like strength, constitution, agility and your power in technomancy, plus there's also options for upgrading lockpicking, charisma, science, crafting and even stealth, although sneaking around doesn't often feel very worthwhile as in most areas you'll be forced into fighting anyway. (wolfsgamingblog.com)
There's the usual assortment of stat boosts, too, so you can get some extra Fluid charges (those being what limit the use of technomancy) or a better chance of ignoring disruptive attacks and so on and so on. (wolfsgamingblog.com)