By Slash Lane

Published: 12:00 PM EST

Apple Inc. is applying some last minute tweaks to a version of the Safari web browser expected to ship next month as part of the company's final maintenance and security update to the Mac OS X 10.4 Tiger operating system.

Two new builds of the impending Mac OS X 10.4.11 Update were distributed to Cupertino-based firm's vast developer community on Tuesday evening -- build 8S2157 for Macs with Intel processors and build 8S157 for those systems that include PowerPC chips.

People familiar with the releases say each build includes a small fix for Safari's localization support, while the Intel build also addresses an issue with the power management of some Intel-based Macs. The new fixes bring the total number of code corrections in the Mac OS X 10.4.11 update to nearly four dozen.

In providing its developer community with the new pre-releases, Apple reportedly asked that testers help evaluate a handful of areas including Safari, PCI Express cards, FireWire devices and USB audio devices. The company also informed developers to keep a lookout for one minor glitch involving Safari's address bar, which has apparently experienced some re-draw issues in recent builds.

Like the inaugural release of Mac OS X 10.5 Leopard, Mac OS X 10.4.11 is widely expected for a release sometime during the month of October.