This includes all the core files used to run Word Press.If you have made any modifications to those files, your changes will be lost.For major updates, Word Press shows a notification that an update is available and a user can initiate the update by simply clicking a button.
You will probably need to upgrade your database simply by following the process and clicking upgrade.
Final Step: You may need to: Tip: To avoid losing any custom changes you make to the Word Press core files after you update, you may consider creating your own child theme which will save all your custom coding in a separate directory and therefore not be overwritten when you update to the latest version in the future.
This may mean you have to set less restrictive file ownership and permissions on your Word Press installation.
The downside is that your web server will have rights to modify your files – which may allow a hacker to do the same.
In this article we, will show you how to manually update Word Press using an FTP client.