Well, it’s been about six weeks, so an interim update is just about due. This one squashes a few bugs, including some relating to running WordPress on IIS6, and a few security fixes.
You should be seeing the update notice in your dashboard, or at the very least on the Update page. Do it now, it won’t hurt a bit, and won’t take long. All the details and a download link for those whose servers won’t work with automatic updates:
 I speak as a certified, experienced, professional Windows Server administrator here: don’t to that unless you really have to
 Jokes on a postcard, please
 As always, backups are advised
 Subject to your server being nicely behaved
 Under 30 seconds for me, including pausing for a moment before clicking the “update now” thingy