Just make it happen....
Upgrading WordPress is one thing, but having to upgrade the database is another. Before you can upgrade WordPress, your database needs to be running MySql 5.0. This can get a little complicated. Your hosting company may not support this so you are left to resolve it on your own. You decide it's just not worth it and forget. You tell yourself ... it will be ok, so I'm not going to deal with it. Who would hack my site anyway?
Let me change your mind.
So one day you discover you can't access your website, it's being blocked in your browser or a client calls and they are having trouble, or worse, no one ever calls because no one ever finds your website online anymore, things have been quiet and you've been wondering what happened!
The security vulnerabilities in WordPress, if you have not upgraded to WordPress 3.5.2, are too risky if you value how much your site helps your business, your blog, your branding and your life! It takes way more effort to resolve a hijacked website than to upgrade your database.
I have had personal experience cleaning up hacked sites and there's more time involved in fixing things than just upgrading and you will also be blocked from Google if your site was hijacked and is serving malware on the internet.
You may see "This site may harm your computer" warning in Google search results.
The reason for this is that someone more than likely has compromised your server into allowing them to modify files on your site. They do this by inserting malicious code into your web pages or database tables, or alter the code of your website.
There is an answer on how to survive updating WordPress, just call me! If you would like assistance in upgrading a MySql database to 5.0 or WordPress to 3.5.2 please contact me. I highly recommend doing the WordPress 3.5.2 update which addresses multiple vulnerabilities for all previous versions. What could take 4-5 hours, take less than 30 mins!