A lot has changed, and the changes are not backwards compatible with v1.X.
The whole concept has been reworked to support a cleaner installation process.
with contexts are now supported for easier handling of when and where to do certain sync calls etc.
A lot of helper functions have also been put into place to ease certain functions like calling pacman, pacstrap, syscalls and handling partitions, formatting and disk encryption.
The whole library has also been split from one major file into many modules and now more resembles a library.
This was done to support the option to install archinstall via PyPi and to be used as a library or executed as a python module via python -m archinstall --arg1="something" (module feature still being worked on).
Future versions will include support for calling python scripts for post-installation as well as profile installations.
This is because the current JSON template is a bit limited and complex to use when nesting strings inline.
Package is also being synced to the official GitLab of Arch Linux.