They announced it on Twitter.

https://twitter.com/binance/status/1254621704954900480?s=20

- binance

There were a lot of people who had Hive there and it was locked up. Now they'll get access to it and it's on a 600% tear, oh...there will be dumping. Hive was recently listed on 2 other exchanges as well.

Check out the announcement section in the Hive discord.