Microsoft hasn't released that many Windows 10 Insider Redstone 2 updates since the Anniversary Update was released a number of weeks ago, with build 14396 being the most recent version released to Windows Insiders on the Fast Ring. Today, the company released ISOs of the most recent Windows 10 build that's been made available on the Slow Ring, build 14391, to go along with build 14393 ISOs that have available for some time.
You can download the ISO's here, but note that you'll need to be signed in with a Microsoft account that's a part of the Insiders program. The word came via the Twitter account of Microsoft software engineer Jen Gentleman:
— Jen Gentleman 🌺 (@JenMsft) October 5, 2016
Now, you can more easily install the Windows 10 Insider builds without resorting to hitting the update button in Settings > Update & Security. Let us know in the comments if having access to the ISOs makes your life any easier.