No, they are separate projects. Although Stellar was founded by one of Ripple’s former founders, when the Stellar network launched, its ledger was completely new. There were some coding similarities in the early days of the project, but when the current Stellar network went online in September 2015, it featured a new consensus model and no longer contains any code that is shared with the Ripple project. Indeed, Ripple and Stellar can be seen as rivals rather than cooperators today.