They added 4 spots. 2 places going to the best performing leagues of each season (This could have been anyone, it doesn't have to be a top league). The others:
Slot three: This place will go to the club ranked third in the championship of the association in fifth position in the access list (France), which is determined by the
five-year UEFA association club coefficient ranking up to the end of the 2022/23 season.
This means France (or whoever is fifth) will have 3+1 instead of 2+1 previously. But the +1 is now obliged to go through qualifiers each year, in the old system the +1 could go directly to group stage as EL TH replacement, when the titleholder of the EL doesn't need their spot. Which happened last in 2019 with Lyon going directly into the GS (and ultimately reaching the semifinals of the CL).
Slot four: This spot will be awarded to a domestic champion by extending from four to five the number of clubs qualifying via the champions path of the competition's qualifying process, which will consist of three qualifying rounds and the play-offs.
Only the fourth spot is awarded to smaller leagues via the Champions path.