There are two primary ways you can update WordPress to the latest version.
Through The Control Panel
Step 1
Log in to your WordPress backend (Usually Https://www.yourdomain.com/wp-admin, with “yourdomain.com” being your website name.)
Step 2
Once logged in, click on “Updates”, then” Update Now”.
Wait for the process to complete the update. If it does not show anything on the screen after a few moments, you may be required to update WordPress manually using the process below.
Through An FTP Application
Step 1
Download the latest WordPress update file from, https://wordpress.org/download/ and extract the contents to a known location.
Using your preferred FTP application, (An open source FTP such as FileZilla: https://filezilla-project.org/) login using the provided details in your login information document. (Or an FTP user can be created in your cPanel account)
Step 2
Once connected, navigate to your WordPress update folder, select all and drag-n-drop to the remote site.
Step 3
Your will be prompted to choose an action as files may already exist, select the following, then “OK”.
Step 4
Once the queue at the bottom of the screen clears, you can disconnect and close the application.
Log back into your WordPress administration page (https://www.yourdomain.com/wp-admin with “yourdomain.com” being your website name) and you will be prompted to update the database, select the blue “Update WordPress Database” button.
Step 5
Following the update of the database, you can click “Continue” to finish and proceed with logging in.
Note:
Updating plugins are quite similar to the methods above, in that you can update it directly from the administrator page, or through FTP in the wp-content/plugins/ folder if you have the plugin update files.
If an update fails to complete, or are prompted with a “Maintenance Mode” page, simply log into your FTP account and delete the “.maintenance” file and try again in the administration page.