A new version of Joomla is out and it's a security release.
Joomla 3.4.7 Released (joomla.org)
Joomla! 3.4.7 is now available. This is a security release for the 3.x series of Joomla which addresses a critical security vulnerability and one low level security vulnerabilities. We strongly recommend that you update your sites immediately.
This release only contains the security fixes; no other changes have been made compared to the Joomla 3.4.6 release.
What's in 3.4.7
Version 3.4.7 is released to address two reported security vulnerabilities and includes security hardening of the MySQLi driver to help prevent object injection attacks.
We highly suggest performing this upgrade since this is a security release.
Our Website Maintenance Department will be in contact with all of our clients running Joomla regarding these upgrades.