Microsoft's Gabe Aul has revealed on Twitter than more than 170,000 new Insiders have signed up to the company's program since the Windows 10 event. At the time of tweeting, a total of 173,624 new registrations were received.
Microsoft plans to release a new preview build of Windows 10 to Insiders next week, which will be available in 25 languages. A new preview build of Windows 10 for phones is also on the way, and will be available for Insiders in February.
Are you part of the Windows Insider program? If not, you'll probably want to sign up to receive the next versions of Windows before the final builds go live.