Since v1.04.1 was a "hotfix" for the larger patch, it inherited the massive changes from that version, including:

For the full detailed list of changes, you can refer to the official Elden Ring Patch Notes v1.04.1 provided by Bandai Namco. ELDEN RING Patch Notes v1.04.1 - Bandai Namco

: Included miscellaneous text updates and corrections across the game. Context of Version 1.04

: Dozens of spells received casting speed increases and FP cost reductions.