
there is an "update history file" right where the FW is that lists the fixes
https://www.pioneerdj.com/en/support/software/all-in-one-system/xdj-rx3/
for me, the freezing and slowing down when using large databases has not been solved even in 1.12, I have a ticket in and Pioneer is looking at it, hopefully it is fixed
for now I just leave 5000-9000 tracks on a drive and it runs smooth for a few hours before slowing down when scrolling and searching
here is what's in the history file:


XDJ-RX3 firmware - Change History
ver. 1.12 (May 12, 2022 update) [IMPROVED]
Browsing speed issues have been improved. [FIXED]
Issues on the browse screen have been fixed. Other minor bugs have been fixed.
ver. 1.11 (March 28, 2022 update)
[FIXED]
Bugs when using PRO DJ LINK (Link Export). Bugs when using Track Filter.
Other minor bugs have been fixed.
ver. 1.10 (February 8, 2022 update) [IMPROVED]
Touch Scroll on the Browse screen.
Reading of HFS+ formatted USB flash drives. Volume of Touch Preview has been adjusted. [FIXED]
Sound stopped when [SOFTWARE CONTROL] was turned on. Beat FX channel selection reflected incorrectly.
Other minor bugs have been fixed.