hello,
you can't use the auto-updater to get from version 3.8 to 3.9 as the auto-updater only works in the same branch. so when you have 3.8.x you can always use the auto-updater to get the latest 3.8.x.x.x version (as long as it's still 3.8) but not to 3.9 then.

to upgrade to a new major version you need to upload the package manually via the extension installer, that will work fine.
hope that helps

Hello Hostmaster Premiss ,

I am really sorry for the delay of this reply as it is a weekend for us here.
Yes, you can follow that provided by Alex

You can download the latest EasyBlog in your dahsboard at ( http://stackideas.com ). Please take note if you are upgrading from EasyBlog 3.8.x or older to 3.9.x requires a full uninstall / installation. The reason is because there are some core files which were modified in this release and running the updater would actually break things.

Rest assured that your data would not get erased when you perform an uninstall. Theme files and other core files would however get erased, so if you have made any modifications, it's best to make a backup of the modifications first.

Hope this help.

Best Regards
Arlex