Today the WordPress team released update 4.7.2, a security release that patches some important security vulnerabilities that affect all previous versions of WordPress.
We recommend that you update any WordPress installations as soon as possible by logging in, heading to Dashboard → Updates and clicking ‘Update Now’. Alternatively you can download WordPress 4.7.2 and manually upload the core files to your installs. Some of the more modern WordPress installs have automatic updates turned on by default, so in many cases you might already be updated!
You can read more about 4.7.2 over on the WordPress blog and as always feel free to get in touch if you have any questions.