10.13.4 - Unable to install public beta

boath public and developer betas are not available for some reason at the momen.

From my tests the 10.13.4 Public Beta is not detected if you installed macOS 10.13.3 Supplemental Update prior to enabling public beta access.

It seems a bug to me since 10.13.3su is build 17D102 and 10.13.4 Public Beta 3 is 17E150g. I've reported it to Apple with the Feedback app. I didn't try to install the Developer Beta on top of macOS 10.13.3 Supplemental Update.

can confirm that this is correct if you alow or have supplemental update installed it will not find 10.13.4 beta just done clean installation and the first thing I did was to install developer beta utility and 10.13.4 beta 3 was found straight away

Thank you for your work, XFox and Chris TB-pb. I really wasn't expecting anyone to actually go through all that but appreciate it nonetheless!

problem seems to be resolved with developer beta 4 dont know when this will be released as public beta. Just tried with Public beta installed, can confirm beta 4 public beta not out yet Unless you have an iMac pro or one of the newer macs and your build no for 10.3.3 with suplimental update is 17d2104 if it is 17d102 then it will work.

I was able to install public beta 4 from the App Store updates. I was not able to install beta 3.

once a new beta comes out the old one disappears ie as beta 4 came out yesterday beta 3 becomes redunant

What I meant was, I could never install beta 3. I installed the 10.13.3 supplemental which meant I couldn't install beta 3. App Store kept returning "no udates available."

I has that problem on one machine