Myanmar is set to free more than 6,300 detainees, state television reported on Tuesday.
The report failed to specify if any of the 6,359 people to be freed are political prisoners.
On Tuesday, a new government-created human rights body urged the release of “prisoners of conscience”.
The country formerly known as Burma is subject to Western sanctions. The main reasons are human rights abuses and its detention of pro-democracy activists.
But in recent months, there have been signs Myanmar is undergoing a transformation after decades of authoritarian rule.
Press censorship has been eased and a ban on trade unions lifted.
Myanmar held its first elections in two decades a year ago, although they were dismissed by the West as neither free nor fair.
The government also released pro-democracy leader Aung San Suu Kyi from 15 years of house arrest last November and has since held talks with her.