Durov said some of Telegram's best engineers had been working for two and a half years on the "next generation" project.
He said the US court ruled the TON platform could not be used anywhere in the world because US citizens might find a way to access it once it launched.
"The United States can use its control of the dollar and the global financial system to close any bank or bank account in the world," Durov said, adding it was "unfortunate" most of the world was dependent on decisions made by US politicians.
Telegram was launched in 2013 by Russian brothers Nikolai and Pavel Durov.
It allows some 400 million users to exchange encrypted text messages, photos and videos, and also create "channels."
Which is the bestselling Vivo smartphone in India? Why has Vivo not been making premium phones? We interviewed Vivo's director of brand strategy Nipun Marya to find out, and to talk about the company's strategy in India going forward. We discussed this on Orbital, our weekly technology podcast, which you can subscribe to via Apple Podcasts or RSS, download the episode, or just hit the play button below.