It was originally expected in the first week of November
Windows 10 Threshold 2 is the next big update that Microsoft's new operating system should receive, and according to people close to the matter, it is expected to debut sometime this month.
Pundits originally said that Threshold 2 was planned for November 2, but now it turns out that a small delay is forcing Microsoft to push back its debut for a few days or weeks. WinBeta
reports that Microsoft first wants to ship Threshold 2 to insiders for testing purposes, and only then roll it out to all users.
Obviously, this could take longer than expected, which means that the update might actually arrive by the end of November, but that's exactly the reason Microsoft doesn't provide any release dates: every single build is thoroughly tested by Microsoft and insiders, and in case of any major bug, the launch is postponed.
Without a precise release date, the impact of a delay is much smaller, so Microsoft can continue working behind closed doors to bring it to users as fast as possible.