UPDATE (July 14th, 6:15pm ET): The change is now in effect. Going to the Insiders page at insider.windows.com has the PC link disabled and a message explaining that you're too late.
See you at RTM!
Windows 10 is launching two weeks from Wednesday. Microsoft has set up a reservation system for Windows 7 and 8.x, apparently to create a queue for early adopters in before their “could care less” demographic. This was not available on Windows 10 Insider Preview, which we later found out is because Insiders are already at the front of the line. This is important, given today's announcement.
July 13th, which is thankfully not a Friday, will be the last full day to receive ISOs or new builds over Windows Update. By some point tomorrow, these will be taken offline. We will be transitioned over to “production channels” for our next build and ISOs will not be provided. Also, pre-release keys will no longer activate. ISOs will return at some point, but they want to get everyone using their updating platform to make sure they work.
They also say that we will receive at least one new build before release.
Obviously, we are getting close so things are going to start changing. I wonder how long we will stay on RTM branch before Microsoft pushes Insiders forward. We know that Microsoft has already forked development into a 105xx line of build numbers, which is very likely to be post-launch updates. I am not sure that they would push those out over production though, so you would think that Insiders will be on RTM-based builds for at least a little bit.
Today might be your last chance to get in on Windows Insider for a bit, though.