This page shows you what's changed in the most recent definitions update for Microsoft antimalware and antispyware software.

You can also see changes in the last 20 updates from the Change definition version menu on the right.

The latest update is:

• 1.191.1156.0, dated Dec 30, 2014 05:51 AM UTC.

Note: Clicking Update in your software will download the latest publicly released automatic update, which may be a few hours behind this one.

You can force your software to update to this latest update by manually downloading and installing it.

(?)
(?)