DLSS Updater has been released in version 4.5.0 - shortly followed by version 4.5.1 with a bugfix.
After version 4.4.3, 4.5.0 brings a reworked UI, a cancel function for running scans, and backup restoration for unlinked games.
Changes in version 4.5.0:
- Visual enhancements courtesy of contributor Quinta0, improving UI visibility and appearance
- Cancellation capability for scans and batch updates, with a Cancel button on the loading overlay that pauses at safe points without interrupting active DLL transfers
- Improved workflow allowing users to initiate scans directly from the Update button, rather than encountering errors
- Backup restoration for games in the “Unlinked games” section, with error handling for missing files or running game instances
- Streamline is now enabled by default in configuration
- The “high performance updater” option has been removed from settings
- Upgrade to Flet UI 0.86.2 on both platforms
Changes in version 4.5.1:
Bug fix to resolve normalisation issues preventing blacklist selected games from being saved.

Source: GitHub