Update 2026.6 homeassistant won’t start anymore on my iPhone 6s with iOS 15.8.8

After I update my Homeassistant green ( Update 2026.6 )homeassistant won’t start anymore on my iPhone 6s with iOS 15.8.8., while homessistant 2026.6 works perfect on my MacBook and iPhone 16 with iOS 26.5.
What to do ?

Nothing, just wait for the next release or restore.

If you want to restore, open the Terminal app web UI and use ha core update --version 2026.5.4

Same on iPadOS 15.8.8.
Browser shows a blank page with the logo in the center.
Latest app shows same and then says disconnected.

Same here with my iPhone 7 with iOS 15.8.7 and works fine on Firefox on Mac and on iPhone 12 and 13 with iOS 26 point something.

Edit: Same issue with HA 2026.6.1

Follow existing thread: Ipad not loading HA after update to 2026.6.0 - #13 by jaaem