The February update for Internet Explorer 6, 7, 8, 9, 10 and 11 is available on Windows Update. It fixes 40 potentially dangerous bugs that were reported early before they were publicly discovered. SSL 3.0, which is no longer secure, is being disabled for restricted servers. In 2 months, this will happen for all zones. The Adobe Flash Player 16.0.0.305 update has also been released. If you're set to install updates automatically, you don't need to take any action.
For more information, see Security Bulletins MS15-009 and APSB15-04.