Should now be resolved with new .sign files. The instructions should now work as intended: https://getsol.us/articles/installation/preparing-to-install/en/#verify-sha256sums-file-signature

Yes. This is also discussed more fully by someone more knowledgeable on an issue here on GitHub.

@Schteve Have you imported the GPG key as per our documentation prior to running the gpg verify?

We don't do deadlines. Solus 4 will be released in the near future, so there is no point in an intermediate ISO. This has been an unusually long cycle between releases so normally this won't be an issue. There are a lot of moving pieces this time around, so please be patient with us. Thank you.

I support @stobbsm because it is sometimes pain in the ass to wait to download the iso and then wait it to be updated again with a slow internet connection like mine. Also I have ran into a blinking cursor 3 times in a row so I am eagerly waiting for the updated iso. It will be way easier for the newcomers if you provide snapshot releases like other distributions do.
Also if you are not doing an interim release then would you mind telling me when Solus 4 iso will be relseased?

If we're going to be doing a release at this stage, it will be Solus 4. No plans on providing an interim ISO, since all the focus is on the few Solus 4 items left that need to be addressed.

I second this as I recently installed Solus on my brand new Dell XPS 13 9370 and I didn't have wifi at all due to old linux-firmware shipped in the ISO. Upon updating everything my wifi worked correctly but it was a bit of a pain since no tethered connection was possible at the time of the installation