Why you need to keep your WordPress site up-to-date
There are important reasons why you should update your website.
Security
Every new WordPress release fixes some level of security issues. WordPress sites display the version in the page code:
Not upgrading your site is advertising to hackers that your site is vulnerable. Regardless of how happy you are with your site, this is reason enough to upgrade.
Feature Updates
Typically there will be some feature updates included in a new update. Some versions pack more than others, you may miss out on new feature enhancements or functions if you skip an update.
Efficiency
The WordPress team works hard to keep the core files light and fast. Fast sites make visitors happy and also help improve your SEO search ranking status. Why not take advantage of a reduceed site size and load time by simply updating your WordPress core files?