Antares still use dongle authorization only. But not every plugins maker have switched to PC based authorization. Side note: just a few weeks after I bought KawaiExPro, Acoustic Samples (maker of KawaiExPro) started to allow PC based iLok authorization, no iLok USB dongle required. Note that I still prefer to buy non iLok plugins but now that I have it, I don't automatically dismiss the idea.
And now that I have it, I will sometime buy iLok protected plugins since I already have the dongle. Although I 'hate' iLok (for technical and moral reasons) and I resisted getting anything protected by it, there was one VST plugin I REALLY wanted (KawaiExPro piano library) and it uses the UVI platform protected by iLok, so I had to buy an iLok dongle for that. It's a marketing tool to get people to invest in iloks, so they will consider purchasing other plugins when they have the ilok.