Mailing the story:

Arch Linux’s menu-based installer archinstall has been updated today to version 2.7, a major release that adds some new features and fixes many bugs. Archinstall 2.7 introduces two important features, namely support for unified kernel image (UKI), which is a single executable that can be booted directly from the UEFI firmware, and the ability to check for new versions of archinstall when initiating the Arch Linux installer.