From the anaconda team:

Fedora 29 installer changes

Kickstart

• Implemented support for LUKS2 options in kickstart commands autopart, logvol, part and raid: https://github.com/rhinstaller/anaconda/pull/1525

GUI

• Added a new button for the LUKS version in the custom partitioning spoke: https://github.com/rhinstaller/anaconda/pull/1525

TUI

• If the kickstart file requires a default LUKS passphrase to finish the partitioning, Anaconda in the text mode will ask the user for one: https://github.com/rhinstaller/anaconda/pull/1497

Boot options

Anything else

Anaconda modularization

• We improved the support for DBus tasks: https://github.com/rhinstaller/anaconda/pull/1491
• Some of the installation tasks run in DBus modules now: https://github.com/rhinstaller/anaconda/pull/1502
• The DBus module for the storage configuration was extended: https://github.com/rhinstaller/anaconda/pull/1458, https://github.com/rhinstaller/anaconda/pull/1514, https://github.com/rhinstaller/anaconda/pull/1513, https://github.com/rhinstaller/anaconda/pull/1507
• Otherwise, this project is still in progress.