OS X 10.5.7 Build 9J58 Seeded to Developers - MacRumors
Skip to Content

OS X 10.5.7 Build 9J58 Seeded to Developers

Earlier this week, Apple seeded a new version of OS X 10.5.7, termed Build 9J58, to developers. World of Apple publishes the seed notes, which list only a pair of changes related to compatibility fixes between the CFNetwork framework and VPN, iChat, and Safari. Apple has also added iChat to the list of focus areas upon which developers are being asked to concentrate their testing.

As with numerous previous developer builds, the inability to install Safari 4 Beta remains the only documented issue. Development on OS X 10.5.7 has been presumed to be wrapping up for several weeks now, but Apple appears to still be finding a few bugs that require their continued attention. The last developer release, Build 9J56, was seeded in the middle of last week.

Popular Stories

iOS 26

iOS 26.4 Adds Two New Features to CarPlay

Tuesday March 24, 2026 1:55 pm PDT by
iOS 26.4 was released today, and it includes a couple of new features for CarPlay: an Ambient Music widget and support for voice-based chatbot apps. To update your iPhone 11 or newer to iOS 26.4, open the Settings app and tap on General → Software Update. CarPlay will automatically offer the new features so long as the iPhone connected to your vehicle is running iOS 26.4 or later....
Apple Business hero

Apple Unveils 'Apple Business' All-in-One Platform

Tuesday March 24, 2026 8:53 am PDT by
Apple today announced Apple Business, a new all-in-one platform that unifies device management, productivity tools, and customer outreach features. The service is designed to be a consolidated replacement for several of Apple's existing business-focused offerings, including Apple Business Essentials, Apple Business Manager, and Apple Business Connect. It provides organizations with a single...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 3, AirPods Pro 2 and AirPods 4

Tuesday March 24, 2026 12:31 pm PDT by
Apple today released new firmware for the AirPods Pro 2, AirPods Pro 3, and the AirPods 4. The firmware has a version number of 8B39, up from 8B34 on the AirPods Pro 3, 8B28 on the AirPods Pro 2, and 8B21 on the AirPods 4. There is no word on what's included in the firmware, but Apple has a support document with limited notes. Most updates are limited to bug fixes and performance...