Hello Pals,
Today I will walk you through updating the WordPress to new version manually from back-end.
Even though WordPress allow one-click update from its Admin panel, some time this may fail and you will be only left with option to update it manually.
Are you in such a crisis, that Admin panel is saying there is no new update available while you know it isn't true? You are saved. Please follow my instructions and you will be delighted. I can assure that much.
Step 1:Log in to your server and download the latest version of WordPress.
wget
https://wordpress.org/latest.zip -O WordPress-4.1.1.tar.gz
unzip the file: tar xzf WordPress-4.1.1.tar.gz
Now you have a folder WordPress-4.1.1 containing all the required files
Step 2:Deactivate all the plugins.
You can use two options for doing this.
1. login to WordPress site and deactivate each plugin from the plugins tab or
2. Rename <yourWordPress_installation_directory>/wp-content/plugin/ to some thing else (like plugin.decative)
now check from the site and see that all plugins are now deactive.
Step 3: Delete the old wp-includes and wp-admin directories.
Step: 4Upload the new wp-includes and wp-admin directories to your web host, in place of the previously deleted directories.
Step 5:Upload the individual files from the downloaded wp-content folder to your existing wp-content folder, overwriting existing files. Do NOT delete your existing wp-content folder. Do NOT delete any files or folders in your existing wp-content directory (except for the one being overwritten by new files).
Step 6:Upload all new loose files from the root directory of the new version to your existing WordPress root directory
Note: Be careful when you come to copying the wp-content directory. You should make sure that you only copy the files from inside this directory, rather than replacing your entire wp-content directory.
Step 7:Take a look at the wp-config-sample.php file, to see if any new settings have been introduced that you might want to add to your own wp-config.php
Step 8:Visit your main WordPress admin page at /wp-admin. You may be asked to login again. If a database upgrade is necessary at this point, WordPress will detect it and give you a link to a URL like
http://example.com/wordpress/wp-admin/upgrade.php. Follow that link and follow the instructions. This will update your database to be compatible with the latest code.
That's it now the WordPress is updated.
Lastly activate the plugins to use them.
Thank you and happy blogging