In Depth Mac OS X Leopard Review

ArsTechinca's John Siracusa posts an in depth review of Leopard, which refreshingly goes beyond the typical superficial glance at features. In fact, portions of the review may be too technical for the many readers, but does point out several under-the-hood improvements in Mac OS X 10.5 that may not be immediately obvious. Indeed, Siracusa summarizes the 17 page review:

As I've learned more about Leopard, it's become increasingly clear where, exactly, those two-and-a-half years of development time went. Leopard is absolutely packed with improvements. It seems that not a corner of the OS has gone untouched.

Perhaps that's not as clear to the casual user who just sees the surface changes and the major new features in Leopard. But even in that case, there's more than enough to recommend it. if you're wondering whether you should upgrade to Leopard, the answer, as it's been for every major revision of Mac OS X, is yes.

That being said, the review does touch on some aspects of Leopard's superficial changes, including the new standardized look of windows, changes in Finder behavior and the impracticality of Apple's current Stacks implementation:

There's just not enough room in a single Dock tile for a stack of icons to convey any meaningful information. Only the top one, two, maybe three items have any visual impact. And those few items may be misleading (e.g., the home folder appearing to be the Desktop folder) or completely generic (e.g., the Pictures and Movies folders showing up as plain folder icons.) Seriously, Apple, this is a bad idea.

Siracusa is, however, enthusiastic about Time Machine ("people will actually use") and describes steady and significant improvements in Mac OS X's performance and responsiveness. Leopard's kernel is also said to be better about scheduling processes, allowing you to make better use of multi-core CPUs.

Of technical interest, the article explores Leopard's implementation of DTrace to assist in debugging, the full transition to 64-bit, and the full adoption of Cocoa:

The last vestiges of the original Macintosh API are finally being put to rest. They've done their job and are being given a decent burial, I think. A slow, almost natural transition. Bugs will be fixed in the 32-bit Carbon APIs, of course, but no new features will be added. All new GUI APIs in Leopard and future Mac OS X releases will be added as Cocoa-only APIs.

This transition, of course, affects some of Apple's biggest developers (such as Microsoft and Adobe) who have a large library of Carbon code for their applications.

A lot of groundwork has also been laid towards implementing resolution independence, though even Apple's implementation across their own applications is thus far inconsistent. Full Resolution Independence support as a user-accessible feature is not expected until 2008. But this should allow Apple to introduce super-high-resolution displays and provide a consistent user experience.

The full review is worth reading if you have an interest in Mac OS X Leopard.

Top Stories

samsung experience 1

Samsung's 'iTest' Lets You Try a Galaxy Device on Your iPhone

Thursday April 8, 2021 12:42 pm PDT by
Samsung has launched "iTest," an interactive website experience that's designed to allow iPhone users to test out Android on a Galaxy device, or "sample the other side," as Samsung puts it. Subscribe to the MacRumors YouTube channel for more videos. The iTest website is being advertised in New Zealand, according to a MacRumors reader who came across the feature. Visiting the iTest website on...
sonny 2021 ipad mini pro dummies

Leaked Dummy Units Show iPad Mini 6 With Thick Bezels and Home Button, New iPad Pro Models

Thursday April 8, 2021 2:11 am PDT by
Rumors suggest Apple will release refreshed versions of the iPad mini and iPad Pro models in the first half of this year, potentially as soon as this month, and a new leak today has provided us with a possible preview of what to expect in terms of the devices' overall design and camera prospects. Tech leaker and Apple blogger Sonny Dickson this morning shared images on Twitter showing dummy ...
fake airpods 3

Counterfeit 'AirPods 3' Hit the Market Prior to Official Announcement

Friday April 9, 2021 2:45 am PDT by
Apple is expected to launch the third iteration of AirPods in the third quarter of this year. Rumors and reports suggest the new AirPods will feature an updated design more in line with the AirPods Pro, but lacking in "Pro" features such as active noise cancellation. Despite AirPods 3 not yet being officially announced by Apple, counterfeit products of the unreleased earbuds have already hit ...
iMessage Android featured

Apple's Rationale for Not Bringing iMessage to Android Revealed in Legal Documents

Friday April 9, 2021 2:22 am PDT by
It's no secret that Apple sees iMessage as a big enough selling point to keep the service exclusive to Apple devices, however new court filings submitted by Epic Games in its ongoing lawsuit with the company reveal just how Apple executives have rationalized their decision not to develop a version of iMessage for Android. Apple clearly recognizes the power that iMessage has to keep users...
nba tracking prompt orange

Two-Thirds of iPhone Users Expected to Block Ad Tracking

Friday April 9, 2021 7:19 am PDT by
As many as 68 percent of iPhone users are expected to deny advertisers permission to track them thanks to Apple's App Tracking Transparency feature, in what is beginning to look like a significant blow to the advertising industry (via AdWeek). With the launch of iOS 14.5, apps will have to receive explicit user permission before accessing an iPhone's advertising identifier or IDFA, which is...
iPhone 13 Battery Life Feature

DigiTimes: iPhone 13 Pro Models to Feature 120Hz ProMotion Refresh Rate and 15-20% Less Power Consumption

Friday April 9, 2021 12:52 am PDT by
The two premium "Pro" models of the upcoming iPhone 13 lineup will be equipped with a low-power LTPO display, enabling the iPhones to have a 120Hz refresh rate, according to industry sources cited by Taiwanese publication DigiTimes. According to today's paywalled report, Apple suppliers Samsung and LG Display are in the process of converting parts of their production capacity to produce LTPO ...
ehric

iPhone 12 Mini Missing From Top 5 Best Selling Smartphone List of January 2021

Friday April 9, 2021 4:58 am PDT by
According to market data compiled by Counterpoint Research, Apple's smallest iPhone since the 2016 iPhone SE, the iPhone 12 mini, struggled to obtain a spot in the top five list of best-selling smartphones in January of this year. According to the market data, the iPhone 12 mini came in eighth place for the best-selling smartphone worldwide in the first month of the year. However, the iPhone ...
Top Stories 56 Feature

Top Stories: 'Find My' Expansion, iPhone 13 Pro Mockup, Largest-Ever iMac?

Saturday April 10, 2021 6:00 am PDT by
Apple's AirTags may still be nowhere to be seen nearly two years after signs of them were first discovered, but Apple this week launched its Find My network accessory program that will let third-party devices integrate with the Find My app on Apple's platforms to make it easy to keep track of your items. This week also saw fresh rumors about the upcoming "iPhone 13" and new iMacs, while...
fortnite apple featured

Epic's Case Against Apple in Australia Might Be Over

Friday April 9, 2021 12:21 pm PDT by
Epic Games and Apple are involved in a highly public lawsuit in the United States, but Epic has also sued Apple in other countries, including Australia, in an attempt to boost its chances of getting a favorable ruling. Things aren't quite going Epic's way, however, as the justice overseeing the case today decided that he's going to let the two companies battle it out in the United States. ...
Apple TV Ray Light Teal Film

Apple Wants to Draw Subscribers to Apple TV+ With More Feature Films

Friday April 9, 2021 10:27 am PDT by
Apple is ramping up its efforts to produce feature films, according to a new report from The Information. Apple has a limited number of high profile films already, including "Palmer," "Cherry," and "Greyhound," and sees it as a way to draw more people into Apple TV+. Apple has been telling studio executives that it is aiming to do more than 10 to 12 original movies per year for Apple TV+,...