I was wondering if are there some real advantages in using Buster on a Raspberry Pi Zero, or I should continue using Stretch
is there any advantage in using Raspbian Buster instead of Stretch on a Raspberry Pi Zero
What are you doing with this Pi Zero ?
If you're doing some project without connection to internet or just locally (home automation, etc) I would say no. If no big bug endangering your project has been corrected it may no be worth the time and effort required to put again in place your project.
Now, if your Zero is hosting some web server, everything opened to the world it could benefit from kernel updates and other software updates. (Some of them could be patching vulnerability, etc).
In short it's down to safety en reliability against the time you will have to invest to update your project to this new OS.
I'm using it in a project without connection to internet, just a camera and a USB stick, since I have to set up a new SD card if I there are no advantages I'll install Stretch again– MikyJul 10, 2019 at 13:55
Are you exporting the images to your USB stick ? I believe it falls in the first category, you may benefit by keeping the Stretch version which may be lighter Jul 10, 2019 at 14:03
1exactly, I need it to be as light, low energy consumption, and fast as possible– MikyJul 10, 2019 at 14:06
Keep Stretch lite Jul 10, 2019 at 14:12