In the last edition of WordPress 2.8.1 unfortunately, developers have missed some places when fixing the privilege of growth issues for the versions. Luckily, the entire WordPress community has our backs. Several folks in the community dug deeper and discovered areas that were overlooked. With their help, the remaining issues are fixed in 2.8.3. Since this is a security release, upgrading is highly recommended. Download 2.8.3, or upgrade automatically from your admin.
Click to know about WordPress 2.8.1
The latest stable release of WordPress (Version 2.8.3) is available in two formats from the links to your right. If you have no idea what to do with this download, WordPress recommends signing up with one of the web hosting partners that offers a one click install of WordPress or getting a free account on WordPress.com.
Click to SOURCE and DOWNLOAD
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My Blog 
The release of WordPress 2.8.3 was unexpected but looking at the no of bugs and error wordpress 2.8.1 and 2.8.2 had, It was much expected update. Though I updated WordPress to 2.8.3 and I can still see few Errors in my dashboard