Some recent changes to the postmarketOS initramfs and mkinitfs tool might cause issues when upgrading or booting devices. When updating over the next few days with apk upgrade, please keep an eye out for failures. If apk fails, do not reboot without first remedying the problem (see below). The changes were tested on a variety of devices, but there's always a risk of breaking boot with changes like this. As always, it's a great idea to back up valuable data, especially when running postmarketOS edge.
If you have problems and need help, please head to the unified initramfs megathread issue and follow the instructions. Also feel free to reach out to us on chat.