Hi,
Can I make a upgrade from 5.26 to 6.27 without any problems. Don’t wanna loose my hotspot enviroment because we have guest in house.
Thnx
Upgrading wonlt change your settings .
It is better to say: Upgrading should not change your settings.
Ok, thnx. But still not sure if I will gett any surprise. Which methode ist best to make a upgrade but still have the change to downgrade without lost my settings…
Make a backup of your configuration before you upgrade, just to be safe. You can downgrade after that. And if for some reason your configuration is lost you will have your backup.
should note that for security reasons you should upgrade and upgrade to be safe. check the log for this and see the 
Download the package from:
www.mikrotik.com/download
for your specific architect (it’s on winbox header e.g. mine is mipsbe)
download it and copy it to your Files (root folder)
and just reboot your Router. just backup your data for your own safety.