Unlike the Nov. 13 update, which added anti-phishing protection and -- more than two-thirds of them critical -- today's minor upgrade was for unspecified "stability improvements," according to a terse notice on the Apple Web site.
Although the notice included a link to the -- where the company normally provides pointers to security advisories associated with such updates -- there was no listing there for Safari 3.2.1.
A security researcher who in the past has for its unpredictable patching schedule did so again Monday. "It would be too much of an understatement to say 'more of the same'," said , director of security operations at vendor nCircle Network Security Inc., in an instant message. "But in doing so, it also represents the lethargic approach we've come to expect with Apple updates.
"If only they would put some of that creative spirit we love about Apple into their security development life-cycle," Storms added.
Although Apple's scanty information about Safari 3.2.1 made it impossible to know for certain, some people speculated on the company's support forum that the update was aimed at fixing problems users reported with Safari 3.2 since its release. Among the complaints: Frequent crashes, particularly when the new anti-phishing feature was enabled.
One thread on the Safari support forum titled has collected more than 100 messages and been viewed nearly 4,000 times since it was opened on Nov. 13.
There were few reports early Monday evening about whether the day's update had stopped browser crashes. One user, at least, said it had not. "[Safari] 3.2.1 still crashed for me," reported a user identified as in a message posted around 7 p.m. EST.
Other users running PithHelmet -- a third-party ad-blocking plug-in -- also reported that the 3.2 update frequently crashed.
Apple updated both the and Windows versions of Safari to 3.2.1.
Mac OS X users can download and install 3.2.1 using Safari's built-in update feature, or on Windows, by running the separate Apple Software Update utility.