Just happened this morning when I access to my wordpress dashboard, I have been prompted to upgrade my wordpress engine from 2.8.4 to 2.8.5. Initially when I tried to do it automatically, I failed due to some access issue. So I shelf the idea of upgrading it.

But, later, I check about what are the updates in the 2.8.5, and it is saying about security loopholes in 2.8.4 where hacker can gain advantage to put in whatever codes into your website for their advantage.
Since I can’t upgrade it automatically, I’m forced to do it manually. At the top of your wordpress editing beach, there’s a phrase ‘WordPress 2.8.5 is available! Please update now.’ , I pressed the ‘Please update now’ link.
Next, you have the option to install automatically or manually. I do not have the luxury of installing it automatically as I failed the authentication when it was asking for the hostname, username and password.
Thus, I was clicking the manual option, and I was forwarded to a webpage to download the latest version 2.8.5
The zip file is about 2.2MB, and I extract the zip file and saved into a \temp directory.
In the end, all the wordpress files are extracted to \temp\wordpress.
I use Filezilla to transfer the files to my hosting server. See screenshot below :

Make sure the local site path ( /temp/wordpress/ )and remote site path ( /public_html/ ) or ( /htdocs/ ) depending on your hosting root are correct. Highlights all the content in the \wordpress folder and right click , choose Upload as shown below:

If prompted to overwrite, just enter to overwrite. And you are done. Once you go into your wordpress bench, the upgrade message will be gone.

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