When might MS update the DEV ISO on the Insider site to latest feature build?

The official 'Windows Insider Download Previews' page only has the previous feature update and not the latest 26200.xxxx series. How often are these updated?
(I know there is UUP dump but was curious on these)

Windows Insider Download Previews

Normally this list gets updated when an official Windows release is upcoming.

26100.1150 was the Release Preview a few months before the official GA (26100.1724). MS doesn't like to provide full ISO images unless it's a stable release candidate, because this page has high visibility. When the RP track for 25H2 heads into the final phases (late Summer/early Fall), you will finally see a newer ISO provided.

The page's not intended to be the normal release mechanism for Dev/Beta/RP channels. Windows Updates does that for you when you're enrolled.

Thanks for the insight on how all that works. It was just curiosity really.