Durov was arrested on Aug 24 as he arrived at Le Bourget airport outside Paris on a private jet.
After days of questioning, he was charged with several counts of failing to curb extremist and terrorist content and released on €5 million (US$5.6 million) bail.
During the investigation, he must remain in France and report to police twice a week.
Durov – who holds Russian, French and United Arab Emirates passports – initially criticised his arrest, but he has since announced steps appearing to bow to Paris’s demands.
On Sep 6, he said Telegram would alter its “people nearby” feature to present users with “legitimate businesses” rather than “bots and scammers”.
“This year we are committed to turn moderation on Telegram from an area of criticism into one of praise,” he said at the time.
Durov, an enigmatic figure who rarely speaks in public, has a fortune estimated at US$15.5 billion by Forbes magazine, but touts the virtues of an ascetic life that includes ice baths and not drinking alcohol or coffee.
