Upgrade CEO Renaud Laplanche speaks at a conference in Brooklyn, New York, in 2018.Alex Flynn | Bloomberg via Getty ImagesUpgrade, the online lender started by LendingClub founder Renaud Laplanche, has raised a new round of funding that values the startup at $7.3 billion.The company said in a press release on Thursday that it raised $165 million in a round led by Neuberger Berman, with participation from LuminArx Capital Management. Laplanche, who created Upgrade in 2016, said it's the first tim...