Thanks you very much, and thanks to @Shack and all others developers and contributors!
I faced the same issue that OP have stated; at present I'm dodging it by scaling the capacitor 3D shape in PCBnew: right click on the capacitor (or whatever component) -> Footprint Cx on F.Cu -> Edit Parameters -> 3D Settings tab -> 3D Scale and Position -> Shape Scale -> 0.4 for X, Y and Z works fine for my oversized capacitors.
Now I'm downloading the new 3D files... I hope it works...
BTW: PCBnew has its own Preferences -> Configure Paths menu.
In your opinion, is preferable to replace the old 3D shapes in /usr/share/kicad/modules/packages3d/ , or to add the new shapes to my own 3D directory (/home/daniel/KiCAD/Library/3D/ in my system), and declare it in PCBnew KIOWN3D variable?
In second case: is necesary to delete/rename the default 3D directory, to avoid file colisions (same file name at two different paths)?
I'm developing my first project using KiCAD (and is my first electronic+PCB project too); I'm feel so comfortable with KiCAD (despite I'm never ever have worked on another EDA software). I'm not electronics engineer nor technician...
I'm learning and finding more and more KiCAD features, and enjoy that.
The main feature I missed is Interactive Router: I'm running my system (Arch Linux) on an old Lenovo R60e, its graphics card only supports GLX = 1.4, OpenGL Canvas requires GLX >= 2.1
P.S.: forgive me for my bad english, I'm argentinian and only speak spanish...