Apple Updates Mac OS X 10.5 (Leopard) to 9A528d - MacRumors
Skip to Content

Apple Updates Mac OS X 10.5 (Leopard) to 9A528d

After nearly a month without an update, Apple has delivered a Leopard update to developers. First, a new version of the Leopard Software Update Client has been seeded through Leopard's Mac OS X Software Update. Once this new Software Update tool is installed, Apple also provides Mac OS X Leopard Client Seed Update.

The new Seed Update is "recommended for all users running Mac OS X Leopard 9A527 or 9A528" and brings the Leopard build up to 9A528d. The update includes general fixes and is also meant to test the new version of Software Update.

Leopard seeds have been notably absent in the past 3-4 weeks. Apple's October deadline for Leopard is quickly approaching. Leopard will need to be finalized soon to ramp up duplication and distribution for the October release timeline.

Apple's last major Mac OS X release (Tiger, 10.4) was declared Gold Master on March 31, 2005. Tiger was later launched in retail stores on Friday, April 29th, 2005, almost one month later.

Popular Stories

Apple Event Logo

Apple's Next Era Begins September 1

Thursday May 7, 2026 10:36 am PDT by
Apple recently announced that Tim Cook will be stepping down as CEO later this year, after 15 years of leading the company. Effective September 1, Apple's hardware engineering chief John Ternus will become the company's next CEO, while Cook will become executive chairman of Apple's board of directors. In his new role, Apple said Cook will assist with "certain aspects" of the company,...
Four iPhone 18 Pro Colors Mock Feature

iPhone 18 Pro Launching in September With These 10 New Features

Saturday May 9, 2026 6:03 am PDT by
While the iPhone 18 Pro and iPhone 18 Pro Max are not launching until September, there are already plenty of rumors about the devices. It was initially reported that the iPhone 18 Pro models would have fully under-screen Face ID, with only a front camera visible in the top-left corner of the screen. However, the latest rumors indicate that only one Face ID component will be moved under the...
Apple Watch Series 10 Jet Black Touch ID

Apple Watch Series 12 and watchOS 27: What to Expect Later This Year

Friday May 8, 2026 2:07 pm PDT by
While not too much has been reported about the next Apple Watch models, there are a few rumors about potential design changes and watchOS 27 features. Apple Watch Series 12 and Apple Watch Ultra 4 models are expected to be released in September, and we have outlined some of the key rumored hardware and software changes below. A new Apple Watch SE is not expected this year, as that model was...