before making the upgrade, make a backup using the “backup” option inside backend of zigaform plugin
the upgrade is manual via ftp. First download the latest version to your PC
Unzip the download file, and you will find a folder named “zigaform-wordpress-form-builder”, just go inside
then you will find the uiform plugin “zigaform-wp-form-builder.zip”:
Uncompress the zip file “zigaform-wp-form-builder.zip” and you will see new folder named “zigaform-wp-form-builder”, go inside this folder
inside folder, you will find many files that you have to upload via ftp
On your hosting, find the plugin folder (wordpress root dir)/wp-content/plugins/zigaform-wp-form-builder/. then upload via ftp all the files from uncompressed folder “zigaform-wp-form-builder” to your remote folder (that you found on previous) on your hosting.
After replacing, you will have the latest version.