How to Update WordPress 2.3 to 3.0

1. Download the WordPress 3.0 setup file (see Resources). When you click on the link, a dialog box will open asking you where to save the file. Choose the location where you want to save the file, and then click 'Save.'
2. Click 'Start' followed by 'All Programs.' Select your FTP software to open it. Type the username and password required to connect to your Web host on the FTP software, and then log in to your Web host. If you do not know your FTP username and password, contact your Web hosting service provider.

3. Right-click the 'wp-include' directory on your Web host, and then click 'Delete.' In the same way, delete the 'wp-admin' directory and the '.maintenance' file.
4. Upload the new 'wp-includes' and 'wp-admin' directories that your downloaded onto your Web host. To do this, click the 'Upload' button on the FTP software, and then select these two directories. The FTP software will automatically upload the selected directories to the Web host.
5. Double-click the new 'wp-content' directory that you downloaded to open it on your computer. Similarly, open the old 'wp-content' directory on your Web host, and then individually upload the files from the new 'wp-content' directory to replace the old ones on the Web host as you did in step 4.
6. Upload all the remaining new WordPress setup files from your computer to replace the ones on the Web host. These include the 'index.php' and 'wp-login.php' files.
7. Navigate to the WordPress log in website on the Internet using your Internet browser, and then login using your administrator credentials. Your WordPress log in website address will be 'www.mywebsite.com/wp-admin'. Replace 'mywebsite' here with the name of your website. This completes the WordPress update process.