noticed each connecter hole has names associated to them likes GP20, GND, 3V3 etc.
How can I also associated names to the pins and connector holes on my PCB ??
2 I’m still using KiCad version 7.0.2 which is still very good but say
I wanted to use the latest stable version which is 7.0.10, I suppose the 7.0.2 needs to be uninstalled right ? and if so, would I lose all the symbols, footprints and 3D stp files I have added into my libraries ??
No, it does not need to be uninstalled. Just run an update/upgrade.
If you’ve added parts to the libraries, nothing will happen. Why? Because the standard libraries do not allow this, so it must be your personal libraries that have been modified. Unless you’ve done something “dirty”. But for peace of mind, just copy the existing libraries to somewhere else where they can be recovered later.
I use KiCad at Windows.
I’ve never thought of installing new version from running previous version. Such action is ‘by definition’ complicated. How system behaves when during installing new version the running exe is replaced with its new version.
To install new version I run installer downloaded from KiCad homepage.
May be it is not needed but before installing new version I always uninstall previous version. It takes not a long time but I can be sure nothing old left.