What are differences between WeDJ connected to the DDJ-WeGO4 and when connected to DDJ-WeGO3?

Basically, WeDJ is optimized when connected to the DDJ-WeGO4.
The followings are the difference:
1) Three knobs in the mixer section of DDJ-WeGO4/DDJ-WeGO3 (DDJ-WeGO4: HI, LOW, FILTER; DDJ-WeGO3: HI, MID, LOW)
　-When connecting the DDJ-WeGO4
　　You can choose 2-Band EQ+CFX（HI, LOW, CFX）or 3-Band EQ (HI, MID, LOW).
　-When connecting the DDJ-WeGO3
　　3-Band EQ (HI, MID, LOW) only.
2) Firmware update from iPhone/iPad is available only when connecting the DDJ-WeGO4.