If you were expecting a new Windows 10 build today, you can stop waiting. Head of the Windows Insider Program Dona Sarkar tweeted earlier today that there would be no new release until tomorrow at the earliest:
No builds today #WindowsInsiders. We're going to try for tomorrow. Have a wonderful day! 💝
— Dona Sarkar (@donasarkar) September 5, 2017
Yesterday was a public holiday in the US, so this is not completely surprising. Last week was a pretty busy one for the Windows Insider team, as Fast Ring Insiders received the preview builds 16278 and 16281, while Insiders who chose to skip ahead got the first RS4 build 16353. The team previously said that we should expect a faster release cycle ahead of the release of the Windows 10 Fall Creators Update on October 17, so it should hopefully be another busy week.
As for Windows 10 Mobile, the current “feature 2” build 15245 is already two weeks old, and we hope to see a new release this week, even if we don’t expect anything new expect the usual bug fixes and improvements. Anyway, keep it locked to OnMSFT to get all the news about new Windows 10 preview builds.