By Sam Oliver

Published: 09:00 AM EST

Apple this week supplied supplied developers with the latest build of the first upgrade to Snow Leopard, Mac OS X 10.6.1, which includes fixes for the new Cocoa Finder.

Build 10B504 was seeded to the Apple Developer Connection community on Tuesday in the form of a 71.4MB delta update. One of two areas of change new to the seed, according to people familiar with the software, resolves crashes with Desktop Services in Finder.

Finder was given a massive rewrite for Snow Leopard, being rebuilt in Cocoa, an upgrade from the previous Carbon-based application programming interface. Prior to Snow Leopard, Finder was one of the oldest Carbon applications in the Mac OS.

The latest build also reportedly addresses a problem where developers would see a large number of "dyld shared cache" messages in the system log.

Also seeded this week was the 10B504 build of Mac OS X Server 10.6.1. The new build, sources familiar with the software said, focuses on directory services and the serial number framework. The latest update fixes a problem with serial number registration on the server side, in addition to the aforementioned client-side fixes, which could have an impact on the server.

Both the client and server upgrades reportedly have no known issues.

Last week, Apple supplied developers with Mac OS X 10.6.1 build 10B503, the first maintenance release for Snow Leopard. While it did not include any sweeping changes, the update did address problem areas in Bluetooth, the Dock, Mail, printing services, Software Update and System Preferences.

The build, sources said, also included a number of printer-related enhancements, including auto-connection to Bluetooth printers on Mac startup, and printer drivers for both Bonjour and USB printers delivered over Software Update.

In all, 13 specific client-side issues have been addressed through two builds of Mac OS X 10.6.1.