Last week Microsoft released Windows 10 Build 10586 to Windows Insiders in Fast Ring. The latest build comes with lots of fixes and there are some known issues. However Windows 10 Build 10586 sheds “Insider Preview” watermark & also Insider Preview enrollment abilities.
Now Microsoft releases build 10565 for Windows Insiders on slow ring. The build is very fast and it could be the Threshold 2 public release candidate.
— Gabriel Aul (@GabeAul) November 9, 2015