Upgrade Help

[pal]

i have 1 question  if i upgrade 1.15 to 1.16 all my data and website design change ?? i need to again create website ?? `why i am asking last time other shopping cart i upgrade all my data (aboutus, contact ,privacy ,shipping )and design lost , so please advice

[abantecart]

Data in the database, system, resource and images directories will not be lost on upgrade. Upgrade scripts do not delete any data.
If you edited files in the cart other than your new extensions, files might effect your custom changes.
You can compare this before hand if you compare your files with upgrade package.

We recommend to do full back up before upgrade.