Peter Thiel, a venture capitalist as famous for his controversial activism as for his savvy tech investments, is no longer a part-time partner at Silicon Valley startup incubator Y Combinator.

The parting of ways comes after a year in which Thiel’s politics, including vocal support of Donald Trump’s presidential ambitions, put Thiel at odds with many of his peers in the tech world.

But a 2015 blog post announcing Thiel’s arrival has been updated with the announcement that “Peter Thiel is no longer affiliated with Y Combinator.” The change was first reported by BuzzFeed News.

Thiel was a relatively uncontroversial addition to Y Combinator in 2015, when Altman praised his involvement with massive tech winners including PayPal and Facebook, and called Thiel “one of the two people .

who has taught me the most about how to invest in startups.”

But Thiel has since courted controversy on at least two fronts.