For 1st Step into WordPress Manual Update, These are the short instructions, if you want more check out the extended upgrade instructions. If you experience problems with the Three Step Update, you may want to review the more detailed upgrade instructions.
For these instructions, it is assumed that your blog’s URL is
Step 1: Replace WordPress files #Step 1: Replace WordPress files
- Get the latest WordPress zip (or tar.gz) file.
- Unpack the zip file that you downloaded.
- Deactivate plugins.
- Delete the old
wp-admindirectories on your web host (through your FTPor shell access).
- Using FTP or your shell access, upload the new
wp-admindirectories to your web host, in place of the previously deleted directories.
- Upload the individual files from the new
incfolder to your existing
incfolder, overwriting existing files. Do NOT delete your existing
incfolder. Do NOT delete any files or folders in your existing
incdirectory (except for the one being overwritten by new files).
- Upload all new loose files from the root directory of the new version to your existing WordPress root directory.
NOTE – you should replace all the old WordPress files with the new ones in the
wp-admin directories and sub-directories, and in the root directory (such as
wp-login.php and so on). Don’t worry – your
wp-config.php will be safe.
Be careful when you come to copying the
inc directory. You should make sure that you only copy the files from inside this directory, rather than replacing your entire
inc directory. This is where your themes and plugins live, so you will want to keep them. If you have customized the default or classic themes without renaming them, make sure not to overwrite those files, otherwise you will lose your changes. (Though you might want to compare them for new features or fixes..)
Lastly you should 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
Step 1.5: Remove .maintenance file #Step 1.5: Remove .maintenance file
If you’re upgrading manually after a failed auto-upgrade, delete the file .maintenance from your WordPress directory using FTP. This will remove the “failed update” nag message.
Step 2: Update your installation #Step 2: Update your installation
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. You should do this as soon as possible after step 1.
Don’t forget to reactivate plugins!
Step 3: Do something nice for yourself #Step 3: Do something nice for yourself
If you have caching enabled, clear the cache at this point so the changes will go live immediately. Otherwise, visitors to your site (including you) will continue to see the old version (until the cache updates).
Your WordPress installation is successfully updated. That’s as simple as we can make it without Updating WordPress Using Subversion.
Consider rewarding yourself with a blog post about the update, reading that book or article you’ve been putting off, or simply sitting back for a few moments and letting the world pass you by.
Final Steps #Final Steps
Your update is now complete, so you can go in and enable your Plugins again.
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Source: WordPress Blog