Additionally, the release should also sport a much improved Plug-in manager aimed at reducing the number of crashes caused by plug-ins, including Adobe Flash plug-in, people familiar with the current betas say. These advances will reportedly also improve load times for plug-ins.
Safari 4.0.5 is currently undergoing tests in four distinct distributions: a build for Windows, one for Mac OS X 10.4 Tiger, one for Mac OS X 10.5 Leopard, and another for Mac OS X 10.6 Snow Leopard. Each are members of the 405Axx build train and weigh between 26 and 38 megabytes.
Meanwhile, Apple is also evaluating a maintenance, security and performance release for QuickTime 7 labeled QuickTime 7.66. It's expected to be one of the final updates to QuickTime 7 and is currently undergoing evaluation for Mac OS X Leopard and Windows. The current build is said to be build 23.
Pro Applications Update
Finally, the Mac maker is also wrapping up QA testing on a significant maintenance release to its Final Cut Studio and Pro applications labeled "Pro Applications Update." Those familiar with this release, code named "Iron Man," say it was originally scheduled to go live last week but has been pushed back a week or so for further evaluation.
AppleInsider correspondent Kyla helped contribute to this report.