Speed demons will be pleased with Safari's latest update that promises to bring "up to" an 11 percent increase in JavaScript performance over the previous version. Unfortunately, those not yet running a version of Lion (OS X 10.7.x) or Snow Leopard (10.6.x) will be left out. The features contained in the latest update appears to be limited to Lion and Snow Leopard users.

Apple released Safari 5.1.4 on Monday morning via Software Update and on the Web with a list of tweaks, including improved responsiveness when typing into the search field after changing network configurations—one of the more annoying bugs in Safari 5.1.3. Other annoying bugs now fixed include an issue causing pages to flash white when switching between windows (this one always gets me when I'm trying to edit posts, causing me to have a heart attack), an issue causing shipping labels from the US Postal Service to print properly, and an issue causing the screen to dim while watching HTML5 video.

We also like "allow cookies set during regular browsing to be available after using Private Browsing." This means when you go private, your existing cookies will still work but sites won't be able to save new ones. Added to the 11 percent claimed JavaScript improvement, those are our favorite picks from the change list. You can view the entire list on Apple's website.